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Roysson, Simon. "Evaluating the lifting capacity in a mobile crane simulation." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48569.
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The work environment of a mobile crane is hazardous where accidents can cause serious injuries or death for workers and non-workers. Therefore, the risk for these accidents should be avoided when possible. One way to avoid the potential accidents is to use mobile crane simulations instead, which removes the risk. Because of this, simulations have been developed to train operators and plan future operations. Mobile crane simulations can also be used to perform research related to mobile cranes, but for the result to be applicable to real-world settings the simulation has to be realistic enough. Therefore, this thesis evaluated an aspect of realism which is the lifting capacity of a mobile crane. This was done by having an artificial neural network train on values from load charts of a real crane, that was then used to predict the lifting capacities based on the boom length and the load radius of the virtual crane. An experiment was conducted in the simulation that collected the predicted lifting capacities which was then compared to the lifting capacities in the load charts of a real crane. The results showed that the lifting capacities could be predicted with little to no deviation except for in a few cases. When conducting the experiment, it was found that the virtual mobile crane could not reach all load radiuses documented in the real load charts. The predicted lifting capacities are concluded to be realistic enough for crane-related research, but should be refined if the lifting capacity plays a key role in the research. Future works such as improving and generalizing the artificial network, and performing the evaluation with user tests are prompted.
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Perez, Winkler A. R. "An investigation of overhead crane wheel/rail/girder interaction." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53278.
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Thesis (MScEng)--University of Stellenbosch, 2003.ENGLISH ABSTRACT: The aim of this thesis is to investigate the wheel/rail/girder interaction of overhead cranes. Three components of the above mentioned interaction system are considered. • The contact interaction between the crane wheel and the rail and its effects on the rail stresses. • The stress distribution in thin webbed rails and the location of critical stresses in the rail. • The load distribution between the rail foot and the crane girder with the inclusion of elastomeric pads. The steps followed for the purpose of this investigation were: • The creation of a numerical wheel-rail interaction model with the finite element method. • The experimental and analytical verification of the numerical results. • An analysis of the wheel/rail/girder interaction system variables on the basis of the numerical results. The following conclusions were drawn from the investigation: • The variables with the greatest influence on the wheel-rail contact patch shape, size and critical stress are the crane wheel diameter and the railhead curvature radius. • It is the position of the above mentioned contact patch relative to the rail symmetry plane, rather than the wheel-rail contact patch size, shape and critical stress, that has a significant influence on the rail stress distribution as a whole. • Critical stresses in thin webbed rails are found at the web-foot and web-head junctions. • The load distribution between the rail foot and the girder, in case elastomeric pads are included, can be described using the beam on elastic foundation theory.
AFRIKAANSE OPSOMMING: Die doél van hierdie tesis is om die interaksie tussen die wiel, die spoor en die ondersteunende balk van oorhoofse krane te ondersoek. Die klem val op die interaksie van drie komponente van bogenoemde sisteem nl:. • Die kontak: interaksie tussen die kraanwiel en die spoor en die gevolglik effekte op die spanningsverdeling in die spoor. • Die spanningsverdeling in kraanspore met dunwandige webbe en die lokasie van kritieke spannings. • Die spanningsverdeling tussen die onderste spoorflens en die bo-flens van die ondersteunende balk in die geval dat 'n elastomeriese strook tussen bogenoemde flense ingesluit word. Die stappe vir die ondersoek was as volg: • Die skepping van 'n numeriese wiel-spoor interaksie model met die eindige element metode. • Die eksperimentele en analitiese verifikasie van numeriese resultate. • Die analise van die wiel/spoor/ondersteunende balk sisteem veranderlikes gebaseer op numeriese resultate. Die belangrikste resultate van die ondersoek was dat: • Die veranderlikes met die grootste invloed op die grote, vorm en kritieke spannings van die wiel-spoor kontak area is die kraan wiel radius en die radius van die spoor se bo-vlak kromming. Dit is die posisie van bogenoemde kontak area relatieftot die simmetrievlak van die spoor, in plaas van die wiel-spoor kontak area grote, vorm ofkritieke spanning, wat 'n deurslaggewende invloed op die spanningsverdeling in die kraanspoor het. • Kritieke spannings in spore met dunwandige webbe word aan die bokant en onderkant van die spoor web aangetref. • Die spanningsverdeling tussen die onderste spoor flens en die bo flens van die ondersteunende balk kan, in die geval dat 'n elastomeriese strook tussen bogenoemde flense ingesluit word, met die gebruik van balk op elastiese fondament teorie beskryf word.
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Maleki, Ehsan A. "Dynamics and control of a small-scale mobile boom crane." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37166.
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Boom cranes are one of the most dynamically complicated types of cranes because they possess rotational joints as opposed to the linear tracks of bridge and gantry cranes. In addition, if the boom crane is placed on a mobile base, additional complexity is added to the system. However, mobile boom cranes have huge potential benefits as they can be quickly transported from one location to another. Furthermore, if they utilize their mobile base during lifting operations, then they can have an extremely large workspace. All cranes share the same limiting weakness; the payload oscillates when the crane moves. A command-generation approach is taken to control the payload oscillation. Input shaping is one such command-generation technique that modifies the original reference command by convolving it with a series of impulses. The shaped command produced by the convolution can then move the crane without inducing payload oscillation. Input shaping can accommodate parameter uncertainties, nonlinearities, multiple modes of vibration, and has been shown to be compatible with human operators. This thesis focuses on three aspects of mobile boom cranes: 1) dynamic analysis, 2) input-shaping control, and 3) experimental testing. A majority of the thesis focuses on analyzing and describing the complicated dynamics of mobile boom cranes. Then, various input-shaping controllers are designed and tested, including two-mode shapers for double-pendulum dynamics. In order to experimentally verify the simulation results, a small-scale mobile boom crane has been constructed. The details of the mobile boom crane and its important features are presented and discussed. Details of the software used to control the crane are also presented. Then, several different experimental protocols are introduced and the results presented. In addition, a set of operator performance studies that analyze human operators maneuvering the mobile boom crane through an obstacle course is presented.
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Huang, Kuan-chun. "Integrated sensing, dynamics and control of a mobile gantry crane." Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/14123.
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This thesis investigates the dynamics and control of a Rubber Tyred Gantry (RTG) crane which are commonly used in container handling operations. Both theoretical and experimental work has been undertaken to ensure the balance of this research. The concept of a Global Sensing System (GSS) is outlined, this being a closed loop automatic sensing system capable of guiding the lifting gear (spreader) to the location of the target container by using feedback signals from the crane's degrees of freedom. To acquire the crucial data for the coordinates and orientation of the swinging spreader a novel visual sensing system (VSS) is proposed. In addition algorithms used in the VSS for seeking the central coordinates of the clustered pixels from the digitised images are also developed. In order to investigate the feasibility of different control strategies in practise, a scaled-down, 1/8, experimental crane rig has been constructed with a new level of functionality in that the spreader in this rig is equipped with multiple cables to emulate the characteristics of a full-size RTG crane. A Crane Application Programming Interface (CAPI) has been proposed to reduce the complexity and difficulty in integrating the control software and hardware. It provides a relatively user-friendly environment in which the end-user can focus on implementing the more fundamental issues of control strategies, rather spending significant amounts of time in low-level device-dependent programming. A control strategy using Feedback Linearization Control (FLC) is investigated. This can handle significant non-linearity in the dynamics of the RTG crane. Simulation results are provided, and so by means of the CAPI this controller is available for direct control of the experimental crane rig. The final part of the thesis is an integration of the analyses of the different subjects, and shows the feasibility of the real-time implementation.
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Vaughan, Joshua Eric. "Dynamics and control of mobile cranes." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24736.
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Thesis (Ph.D.)--Mechanical Engineering, Georgia Institute of Technology, 2009.Committee Chair: William Singhose; Committee Member: John-Paul Clarke; Committee Member: Kok-Meng Lee; Committee Member: Patricio Vela; Committee Member: Rhett Mayor.
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Fujioka, Daichi. "Tip-over stability analysis for mobile boom cranes with single- and double-pendulum payloads." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37162.
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This thesis investigated a tip-over stability of mobile boom cranes with swinging payloads. Base and crane motion presents a tip-over problem. Attaching complex payloads further complicates the problem. They study began with a single-pendulum payload to analyze a tip-over stability characteristics under different conditions. A simple tip-over prediction model was developed with a goal of limiting a computational cost to a minimum. The stability was characterized by a tip-over stability margin method. The crane's tip-over stability was also represented by the maximum possible payload it can carry throughout the workspace. In a static stability analysis, mobile boom crane was assumed to be stationary, thus with no payload swing. The study provided basic understanding on the relationship between tip-over stability and boom configuration. In a pseudo-dynamic stability analysis, the method incorporated payload swing into the analysis by adding estimated maximum payload swing due to motions. To estimate the angles, differential equations of motions of payload swings were derived. The thesis extended the study to a double-pendulum payload. The maximum swing angles estimated in the single-pendulum case were directly applied to the double-pendulum case. To validate the analytical methods, a full dynamic multi-body simulation model of a mobile boom crane was developed. The predictions from the previous analysis were verified by the simulation results. The prediction model and the analytical methods in the thesis provide a significant tool for practical application of tip-over stability analysis on mobile boom cranes. The experimental results increase the confidence of the study's accuracy.
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Thompson, Geoffrey. "Best practice of crane support structures design : an expert survey." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1904.
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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2007.Research on cranes and crane support structures has been completed at Stellenbosch University’s Structural Division. In order to link the research already completed with that which is practically relevant, an industry related expert survey was proposed. Consequently, the research title is “Best Practice of Crane Support Structures Design – An Expert Survey”. The primary objective of the study is to complete research, which can be used at a later stage to compile a “best practice” guideline for support structures design. The expert survey allows practical experience and opinion to be gathered from experts. The primary drawback being the uncertainty involved in such opinionated research material. For this reason an attempt is made in the thesis to apply a scientific approach, in order to attain rationally defendable results. The survey was conducted using interviews with experienced crane support structure designers and crane manufacturers in South Africa. The experts were then rated according to their answers to seeded questions, the number of colleague recommendations they each received and the years of experience each expert has. The expert opinion was subsequently combined using the expert ratings as weights. To further improve the scientific rationale behind the results, several of the topics mentioned by the experts were verified using related literature - thereby validating the use of the combined expert opinion for this research. The results obtained from the survey and verification process are regarded as useful to the objectives of the study. Information concerning pre-design specifications, loads and actions, structural analysis, design, design details and fatigue was compiled. The direct results are tabulated in an appendix and commentary, based on the expert opinions, is provided. A failure investigation was also completed with less success than initially intended. This was due, in part, to confidentiality issues and a lack of failure information easily accessible to the experts. For this reason the results of the failure investigation focuses more on various failure mechanisms. The success of the survey indicates that expert opinion is a useful tool for research. Furthermore, the minor differences in expert opinion, when compared to information obtained from crane support structure literature, indicates that the expertise in the South African crane support structure design is at an international standard.
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Danielson, Jon David. "Mobile boom cranes and advanced input shaping control." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24651.
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De, Waal Arthur William. "Development of a crane load software application for electric driven overhead travelling bridge cranes in accordance with SANS 10160-6:2010." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6622.
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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2011.ENGLISH ABSTRACT: Electric driven overhead travelling bridge cranes (EOHTC) form a vital part of industrial plants where heavy objects require moving. Overhead travelling cranes aid in production by allowing an uninterrupted work process on the ground while heavy loads are moved to their required locations. Various factors need consideration in determining the loads induced by an EOHTC on its support structure. In order to design such a support structure, the designer must understand and take into account the various loads that the support structure will be subject to during its lifetime. The procedure for determining the loads induced by the EOHTC on its support structure is laid out in the SANS 10160-6:2010 code of practice. This document was published in June 2010 and as a result very few worked examples exist to test the coherence of the procedure. This thesis presents an investigation into the procedure for determining the actions induced by overhead travelling bridge cranes adopted in the SANS 10160-6:2010 code of practice. The investigation was conducted by developing a software application to automatically determine the necessary crane actions needed for the design of the crane support structure, given certain input parameters. The motivation behind this was to have a tool that can calculate the crane induced loads automatically. And by developing such a tool the procedure given in the code of practice is better understood. The Java programming language was used to code the calculations with an object oriented programming approach (OOP). NetBeans, the integrated development environment for developing with Java was used to generate the required graphical user interface of the application. In addition, a Microsoft Excel calculation sheet was also developed for the purpose of comparison and verification. Whilst developing the software application, it was found that the model for the acceleration or deceleration of the crane was specific for four wheel cranes only. This model was then extended to accommodate eight and sixteen wheel cranes and incorporated into the algorithm architecture of the application. The application was successfully completed and verified using benchmarked examples.
AFRIKAANSE OPSOMMING: Elektriese oorhoofse brugkrane vorm ‘n belangrike deel van baie nywerheidsprosesse, waar dit gebruik word om swaar laste in die nywerheidsaanleg te verskuif. Oorhoofse brugkrane voeg waarde by die produksie lyn deur te sorg dat die werksproses op die grond onversteurd voortgaan terwyl swaar laste na hul vereiste posisies verskuif word. Verskillende faktore moet in ag geneem word om die nodige kraanlaste te bepaal. Hierdie laste word benodig om die kraan se ondersteuningstruktuur te ontwerp. Die ontwerper moet die nodige kundigheid hê en moet ook die verskeie laste in ag neem wat die ondersteuningstruktuur gedurende sy leeftyd sal dra. SANS 10160-6:2010 verskaf riglyne vir die bepaling van die laste wat deur oorhoofse brugkrane uitgeoefen word. Hierdie dokument is in Junie 2010 gepubliseer dus bestaan daar min uitgewerkte voorbeelde om die korrektheid van die riglyne te toets en toepassing te demonstreer. Hierdie proefskrif ondersoek die riglyne vir die bepaling van oorhoofse brugkraan aksies soos uiteengesit in die SANS 10160-6:2010. Die navorsing is uitgevoer deur middel van die ontwikkeling van ‘n sagteware toepassing wat die nodige oorhoofse brugkraanlaste automaties bepaal, gegee sekere invoer waardes. Die rede hiervoor was om ‘n hulpmiddel te ontwikkel vir die outomatiese bepaling van oorhoofse brugkraan. Deur die bogenoemde hulpmiddel te ontwikkel word die riglyne, soos gegee in die kode beter verstaan. Java is gebruik as programmeringstaal waar die objek geörienteerde programeringstyl toegepas was. Die geintegreerde ontwikkelingsomgewing vir ontwikkeling met Java, naamlik NetBeans is gebruik om die nodige gebruikers koppelvlak op te bou. ‘n Microsoft Excel sigblad is ook ontwikkel vir kontrolerings doeleindes. Gedurende die ontwikkeling van die sagtewarepakket is dit bevind dat die lasmodel vir die versnelling of vertraging van die oorhoofse brugkraan slegs op vierwiel krane van toepasing is. Hierdie lasmodel is dus uitgebrei om agt- en sestienwiel krane ook te bevat. Die lasmodel aanpassing is dan ook in die program se algoritme-argitektuur ingebou. Die sagteware toepassing is suksesvol ontwikkel en gekontroleer met ‘n maatstaf voorbeeld.
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Dymond, Juliet Sheryl. "Reliability based codification for the design of overhead travelling crane support structures." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/1232.
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Thesis (PhD (Civil Engineering))--University of Stellenbosch, 2005.Electric overhead travelling bridge cranes are an integral part of many industrial processes, where they are used for moving loads around the industrial area
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Wu, Jia-Jang. "An analysis of the structural dynamics of a mobile gantry crane with application to automation of container management." Thesis, University of Glasgow, 2000. http://theses.gla.ac.uk/1937/.
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The work in this thesis starts with the development of a Graphical User Interface to aid the manual control of the experimental crane model and to achieve a better container management system. A structural analysis of the laboratory rig is then carried out. The technique used is to divide the whole structure into two parts: a stationary framework and a moving substructure (including its attachments). The dynamic effect of the moving substructure is represented by four equivalent, time-dependent, contacting forces (or lumped masses), and the dynamic behaviour of the stationary framework, induced by the moving substructure, is predicted by computing the responses to these forces (or lumped masses). Before the forced vibration responses can be obtained a finite element model of the scale crane rig has first to be established and validated by means of modal testing. A general technique for incorporating a standard finite element package into a procedure to calculate the dynamic responses of structures due to time-dependent moving point forces is then developed. In order to take the inertia effects of the moving substructure into account a new concept of equivalent time-dependent moving lumped masses is introduced. A general procedure has been developed to allow a standard finite element package to be extended to deal with the dynamic analyses of a three-dimensional framework subjected to the two-dimensional multiple moving masses. The theoretical results obtained are validated by comparison with experimental findings.
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Maleki, Ehsan A. "Control of human-operated machinery with flexible dynamics." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50305.
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Heavy-lifting machines such as cranes are widely used at ports, construction sites, and manufacturing plants in a variety of material-transporting applications. However, cranes possess inherent flexible dynamics that make fast and precise operation challenging. Most cranes are driven by human operators, which adds another element of complexity. The goal of this thesis is to develop controllers that allow human operators to easily and efficiently control machines with flexible dynamics. To improve the ease of human operation of these machines, various control structures are developed and their effectiveness in aiding the operator are evaluated. Cranes are commonly used to swing wrecking balls that demolish unwanted structures. To aid the operator in such tasks, swing-amplifying controllers are designed and their performance are evaluated through simulations and experiments with real operators. To make maneuvering of these machines in material-transporting operations easier, input-shaping control is used to reduce oscillation induced by operator commands. In the presence of external disturbances, input shaping is combined with a low-authority feedback controller to eliminate unwanted oscillations, while maintaining the human operator as the primary controller of the machine. The performance and robustness of the proposed controllers are thoroughly examined via numerical simulations and a series of experiments and operator studies on a small-scale mobile boom crane and a two-ton dual-hoist bridge crane.
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Idowu, Ifeolu Mobolaji. "Numerical evaluation (FEA) of end stop impact forces for a crane fitted with hydraulic buffers." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5399.
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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2010.ENGLISH ABSTRACT: End stop impact forces are horizontal longitudinal forces imposed by the crane on the end stops. Both the previous South African loading code SABS 0160:1989 and the current South African loading code SANS 10160 , classify end stop impact force as an accidental load case , hence they are not expected to occur within the expected lifetime when the guide lines for crane operation are strictly adhered to. In the estimation of end stop impact force, the previous South African loading code SABS 0160:1989 gives two guidelines for estimating the end stop impact force. The first guideline is simplistic in its approach and it’s based on the assumption that the crane and its supporting structure act as rigid bodies; hence calculation is based on rigid body mechanics. Literature reviewed reveals that this is not correct. The second guideline is more explicit in its approach as it takes into account the crane speed, resilience of the buffers and resilience of the end stops. The current South African loading code, SANS 10160 gives a better representation of the dynamics of the crane movement. However, the dynamic factor recommended for the estimation of end stop impact force is empirical in nature and thus lacks adequate scientific backing. One of the purposes of this research was to investigate the influence of the stiffness of the crane bridge on the end stop impact force. This was achieved by conducting a series of FEA simulations on the double bridge EOHTC fitted with elastomeric buffers. For this set of simulations, the effect of each influencing parameter on the end stop impact force was investigated, and the maximum end stop impact force was obtained using a constraint optimization technique. From the results obtained, comparison was then made with the existing maximum end stop impact force for a single bridge EOHTC fitted with elastomeric buffers. Another purpose of this research was to investigate the end stop impact force for an electric overhead travelling cranes (EOHTC) fitted with hydraulic buffers taking into account the dynamics involved in the movement of the EOHTC. This was achieved by a series of experimental and numerical investigation. The numerical investigation was conducted using an existing numerical model of an EOHTC which captures the crane and its supporting structure as a coupled system. Finite element analysis (FEA) impact force histories obtained were calibrated to the base experimental impact force histories. Thereafter, a series of FEA simulations were conducted by changing the parameters which have a substantial effect on the end stop impact forces. This yielded various maximum impact peaks for various parameters. The maximum impact force was then mathematical obtained from the FEA impact force histories for a given level of reliability using a constraint optimization technique. Also, codified end stop impact forces were calculated for the SABS 0160:1989 and SANS 10160-6:2010. From the results obtained, comparison was made between the codified end stop impact force and the maximum impact force obtained from the constraint optimization technique.
AFRIKAANSE OPSOMMING: Ent buffer impak kragte is horisontale kragte wat deur die kraan op die entbuffers aangewend word. Beide die Suid Afrikaanse las kode SABS 0160:1989 en die voorgestelde Suid Afrikaanse las kode SANS 10160, klasifisseer die entbuffer impak kragte as ‘n ongeluks las geval, dus word die kragte nie verwag tydens die verwagte leeftyd van die kraan wanneer die riglyne van die kraan prosedures streng gevolg word nie. Volgens die Suid-Afrikaanse las kode SABS 0160:1989 word daar twee riglyne voorgestel om die entbuffer kragte te bepaal. Die eerste riglyn is ‘n eenvoudige riglyn en word gebaseer op die aaname dat die kraan en die ondersteunende struktuur as ‘n starre ligame reageer en dus word die kragte bereken deur star ligaam meganika, alhoewel, uit die literatuur word dit bewys as inkorrek. Die tweede riglyn is ‘n meer implisiete benadering aangesien dit die kraan snelheid, elastisiteit van die buffers sowel as die elastisiteit van die end stoppe in ag neem. SANS 10160-6:2019 gee ‘n beter benadering van die dinamiese beweging van die kraan. Die voorgestelde dinamiese faktor waarmee die ent_buffer_kragte bereken word, is empiries van natuur . Een van die doelstellings vir die navorsings projek was om te bepaal wat die invloed van die kraan brug se styfheid op die entbuffer kragte is. ‘n Aantal Eindige Element Analise (FEA) simulasies is uitgevoer op ‘n dubbel brug elektriese aangedrewe oorhoofse kraan met elastomeriese buffers. Van die stel FEA simulasies kan die invloed van elke parameter op die entbuffer impak_kragte bepaal word. Die maksimum entbuffer impak_kragte is bepaal met behulp van ‘n beperking optimiserings tegniek. Vanaf hierdie resultate is ‘n vergelyking gemaak met die bestaande maksimum ent_buffer impak_kragte vir ‘n enkel brug elektriese oorhoofse aangdrewe kraan met elastomeriese buffers. ‘n Tweede doel rede vir die navorsing was om te bepaal wat die ent buffer impak_kragte op ‘n elektriese aangedrewe oorhoofse kraan met hidrouliese buffers is. Dit is bepaal deur ‘n aantal eksperimentele en numeriese toetse uit te voer. Die numeriese toetse is uitgevoer deur gebruik te maak van ‘n huidige numeriese model van ‘n elektriese aangedrewe oorhoofse kraan wat die kraan en die ondersteunende struktuur as ‘n. Die Eindige Element Analise impak_kragte is gekalibreer teen die eksperimenteel bepaalde impak- kragte. Daarna is ‘n reeks Eindige Element Analise simulasies uitgevoer en sodoende die parameters te verander wat die mees beduidende invloed op die end stop impak_kragte het. Dit het verskeie impak_krag pieke vir verskillende parameters meegebring. Die maksimum impak kragte is bepaal van die impak kragte van die Eindige Element Analise vir ‘n gegewe vlak van betroubaarheid deur gebruik te maak van die beperking optimiserings tegniek. Daarmee saam is die gekodifiseerde ent buffer impak kragte bereken volgen SABS 0160:1989 en die SANS 10160- 6:2010. Vanaf hierdie resultate is ‘n vergelyking gemaak tussen die gekodifiseerde entbuffer impak_kragte en die maksimum impak_kragte wat bepaal is deur die (beperking optimiserings tegniek).
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Watson, Estelle Dorothy. "Morphological variables as possible risk factors for the drivers of rubber tyred gantry cranes at the port of Felixstowe, UK." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/22011.
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Thesis (MSpor)--University of Stellenbosch, 2007.ENGLISH ABSTRACT: The prevalence of lower back disorders and the high costs involved are an ongoing problem in industrialised countries. Research indicates an estimated 70-80% of all individuals will experience lower back pain (LBP) during the course of their lives (Manek & MacGregor, 2005; Kent & Keating, 2005; Dunn & Croft, 2004; Takeyachi et al., 2003; Carter & Birrel, 2000:6; Nourbakhsh & Arab, 2003; Bernard, 1997:374). It is widely accepted that occupational demands and physical work contribute greatly towards onset, recovery and recurrence of symptoms (Carter & Birrel, 2000:6). Rubber Tyred Gantry (RTG) crane drivers are particularly at risk, as their working posture forces them into various prolonged non-neutral trunk positions (Fehrsen-Du Toit, 2005:24; Rohlmannt et al., 2001; Nachemson, 1963) and extreme trunk flexion (Seider et al., 2003; Hoogendoorn et al., 2000). Intrinsic factors such as trunk strength (O'Sullivan et al., 2005; Bayramoglu et al., 2001) and trunk stability (Hitt & Lie, 2006; MacDonald et al., 2006; Barker et al., 2006; Hodges et al., 2005; Hodges, 2003; Hodges & Richardson, 1996) as well as anthropometric variables (Franklin et al., 2000:64), can play different roles in incidences of lumbar pain or injury. A job such as RTG crane driving is dependant on a certain amount of strength or physical fitness. A deficit in on or more of these areas can lead to compensation, overload and eventually symptoms and injury. Research has yet to identify factors that predispose certain drivers to injury, and factors determining a quick, safe recovery and return to work. The purpose of this study was to investigate possible morphological variables as risk factors for RTG crane drivers, for Hutchison Whampoa, at the Port of Felixstowe, UK. The study design was based on a cross sectional, analytical epidemiological study. A sample of 43 RTG drivers completed testing. They were divided into a group of drivers who had never had lower back pain or symptoms (n=22), and a group of drivers who had had a previous history of lower back pain (n=21). All subjects were asymptomatic at the time of testing. Although not significant (p > 0.05), the results of the study showed that average performance deficit (the power needed to maintain or repetitively produce a force) tended to be higher in those subjects without a previous history of pain. The flexion/extension ratio also tended to be better for this group. The subjects without a past history of lower back pain were, surprisingly, found to be older than the other group. This explains the higher body weight, waist-to-hip-circumference, body mass index, and fat percentage for this group, as these measurements all tend to increase with age. It also explains the lower peak torque to body weight values for that group, as peak torque would decrease with increased body weight. This is the first study to look at morphological variables and isokinetic testing of RTG crane drivers, and the relationship between these variables and lower back pain.
AFRIKAANSE OPSOMMING: Die hoë koste verbonde aan, asook die hoeveelheid voortdurende lae-rug beserings in industriële lande, is ‘n aaneenlopende probleem. Navorsing toon dat 70-80% van alle individue laer-rugpyn sal ervaar deur die loop van hul lewens (Manek & MacGregor, 2005; Kent & Keating, 2005; Dunn & Croft, 2004; Takeyachi et al., 2003; Carter & Birrel, 2000:6; Nourbakhsh & Arab, 2003; Bernard, 1997:374). Dit is aanvaar dat werksvereistes en fisiese werk grootliks bydra tot die oorsaak, herstel en herhaling van simptome (Carter & Birrel, 2000:6). RTG hyskraan bestuurders is veral individue wat ‘n groter risiko toon ten opsigte van laer-rug beserings weens werkspostuur wat hul noodsaak om verskeie langdurige nie-neutrale mid-rug posisies (Fehrsen-Du Toit, 2005:24; Rohlmannt et al., 2001; Nachemson, 1963), asook ekstreme mid-rug fleksie handhaaf (Seider et al., 2003; Hoogendoorn et al., 2000). Sekere individuele intrinsieke faktore soos mid-rug krag (O'Sullivan et al., 2005; Bayramoglu et al., 2001) mid-rug stabiliteit (Hitt & Lie, 2006; MacDonald et al., 2006; Barker et al., 2006; Hodges et al., 2005; Hodges, 2003; Hodges & Richardson, 1996), en antrpometriese veranderlikes (Franklin et al., 2000:64), kan ‘n aansienlike verhoging in moontlike laer-rug pyn of –beserings meebring. ‘n Werk soos RTG hyskraan bestuur is afhanklik van sekere hoeveelheid krag of fisiese fiksheid. ‘n Tekortkoming in enige van hierdie areas kan lei tot oorkompensering, oorbelading en uiteindelike simptome van besering. Vrae wat navorsing nog moet antwoord is onder andere die faktore wat aanleiding gee tot beserings asook wat vinnige en veilige terugkeer na werk vir bestuurders bepaal. Die doel van die studie was om moontlike morfologiese veranderlikes en risiko faktore te bestudeer vir RTG hyskraan bestuurders, vir Hutcinson Whampoa, te Felixstowe hawe, VK. Die rol wat hierdie faktore speel in die oorsaak en ontwikkeling van rugpyn word ook ondersoek. ‘n Protokol van toetse is gekies om moontlike morfologiese risiko faktore uit te lig en daardeur bestuurders wat meer geneig is om laer-rugpyn te ontwikkel te identifiseer. ‘n Totaal van 43 RTG bestuurders het die toets voltooi. Hierdie bestuurders is verdeel in ‘n groep wat nog nooit laer-rugpyn of simptome getoon het nie (n=22) en ‘n groep bestuuders wat wel vorige geskiedenis van laer-rugpyn het (n=21). Alle deelnemers was asimptomaties met die aanvang van die toetsing. Alhoewel resultate van die toets nie noemenswaardig was nie (p>0.05), het dit wel getoon dat algemene prestasie tekortkoming (spierkrag benodig om kraguitset te handhaaf of om herhaaldelik uit te voer) geneig was om hoër te wees in individue sonder ‘n vorige geskiedenis van rug besering. Die fleksie/ekstensie verhouding het ook beter vertoon in hierdie groep. Individue sonder vorige geskiedenis van laer-rugpyn is interessant genoeg, ouer as die met geskiedenis van laer-rug beserings. Dit verduidelik die hoër liggaamsgewig, middelheup- verhouding en liggaamsmassa indeks en vet persentasie van hierdie groep weens die feit dat al reedsgenoemde geneig is om met ouderdom toe te neem. Dit kan ook piekkraguitset tot liggaamsmassa waardes van hierdie groep verduidelik omdat piekkraguitset sal verminder met toename in liggaamsmassa. Hierdie is die eerste studie wat die uitkyk bied op morfologiese veranderlikes tesame met isokinetiese toetsing van RTG hyskraan bestuurders en die verhouding tussen hierdie veranderlikes en laer-rugpyn.
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Wojnar, Tomasz. "Sloupový jeřáb mobilní s nosností 600kg." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319494.
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The diploma thesis deals with the design of a mobile crane for working in a manufacturing environment. The crane has load capacity 600 kg, length of radius 3 m and load-lifting height 3m. It is equipped with the electric chain hoist with electric trolley, rotation by held by hand of burden. The diploma thesis contains crane design and control and design calculations of important components. Technical drawings are also part of the thesis.
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Lundblad, Nora. "Miljöprestanda för lastbilskran : En studieav olika nyttjandescenarier." Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-33222.
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Denna kandidatuppsats är en studie av miljöprestandan hos en lastbilskran satt i relation till användning av en mobilkran. Miljöprestandan hos lastbilskranen studeras och jämförs med mobilkranens givet ett visst nyttjandescenario. Miljöprestandan mäts i miljöparametrarna: klimatpåverkan, energiförbrukning, energieffektivitet samt partikelutsläpp. Realistiska och mätbara nyttjandescenarier har utarbetats utifrån studiebesök och intervjuer med Vemservice, Jämtlands Mobilkranar och Curt Sillström Åkeri. Kandidatuppsatsen är skriven som en del i den miljöstudie som ingår i utvecklingsprojektet Forskning och utveckling av lastbilars centralram för minskad miljöpåverkan vid tung transport. Projektet drivs av Vemservice (Vemdalsservice AB) och syftar till att utveckla centralramen på en lastbilskran genom att öka dess lyftkapacitet. Projektets mål är att ersätta mobilkranar med lastbilskranar i en högre utsträckning än vad som görs idag. I projektet deltar även teknikkonsultföretaget DRIV Innovation, materialoptimeringstjänsten SSAB Shape samt Mittuniversitetet. En lastbilskran är en lastbil med en kran påmonterad på flaket, med plats på flaket för att transportera gods. Lyftförmågan hos en lastbilskran beror både av kranens styrka och själva lastbilens vrid- och böjhållfasthet. I denna studie har en lastbilskran från Curt Sillströms Åkeri studerats. Lastbilskranens främsta användningsområden är vid nybyggnationer av bostäder, flytt av containrar och bodar på arbetsplatser samt vid flytt av tunga föremål in och ut ur byggnader. Mobilkran kallas det arbetsfordon som har en lyftkran med svängarm monterad på fordonet, den används inte för transport av gods. Mobilkranen i denna studie tillhör Jämtlands Mobilkranar och används främst i lyftarbeten såsom byggande av bostäder och arbeten vid vattenkraftverk. Resultatet av den studerade miljöprestandan baseras på tre specifika nyttjandescenarior. Nyttjandescenarierna innefattade att transportera och lyfta en given mängd gods en given sträcka och tid. Lastbilskranen har högre miljöprestanda än mobilkranen vid jämförelse i de tre scenarierna, dvs. lägre utsläpp och mindre energiförbrukning. Den minsta skillnaden i miljöprestanda uppstår när enbart lyftarbete utförs, då lastbilskranens fulla funktion inte nyttjas då den ej transporterar något gods. Det troligtvis mest typiska nyttjandescenariot är att gods både ska transporteras och lyftas. I detta fall har lastbilskranen flera fördelar tack vare att dess fulla funktion utnyttjas.This bachelor thesis is a study of the environmental performance of a loader crane in relationship to the usage of a mobile crane. The environmental performance of the loader crane is studied and compared to the mobile cranes performance given a set of specific user scenarios. The environmental performance is measured using the following environmental parameters:climate impact, energy consumption, energy efficiency and particle emissions. Realistic and measurable user scenarios were prepared using information from visits and interviews with Vemservice, Jämtlands Mobilkranar and Curt Sillström Åkeri. The thesis is written as a part of the environmental study that is included in the developmental project “Forskning och utveckling av lastbilars centralram för minskad miljöpåverkan vid tung transport”. The project is managed by Vemservice (Vemdalsservice AB) and the purpose of the project is to develop the frame on a loader crane by increasing the capacity for lifting. The goal of the project is to replace mobile cranes with loader cranes to a higher degree than what is currently the case. The projects participants are also made up by the technology consulting DRIV Innovation, SSAB Shape and also Mid Sweden University. A loader crane is a truck with a crane mounted on its flatbed and also room on the flatbed for the transport of goods. The lifting capabilities of a loader crane is dependent on the strength of the crane and the rigidity of the frame of the truck itself. In this thesis, a loader crane from Curt Sillström Åkeri AB is studied. The main usage of the loader crane in this study is in construction, the moving of work site sheds and in the moving of heavy objects in and out of houses. A mobile crane is a work vehicle with a crane and swing arm mounted on the back of the vehicle. The mobile crane in this study belongs to Jämtlands Mobilkranar and is primary used for heavy lifting in construction and work at a hydro power plant. As opposed to the loader crane, the mobile crane is not used for the transport of goods. The resulting environmental performance was based on three specific user scenarios. The user scenarios consisted of lifting and transporting a given amount of goods for a specified distance and time. When a comparison is made between the loader crane and mobile crane for total emissions and energy consumption in each user scenario, the loader crane has a larger environmental performance. The smallest difference in environmental performance arises when lifting is the only work being done, due to the fact that the full capacity of the loader crane is not utilized since it is not used to transport goods. Likely the most typical user scenario consists of goods being both transported and lifted. In this case the loader crane has a number of advantages because its full capacity is being utilized.
2018-02-01
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Bábek, Tomáš. "Jeřáb nástěnný mobilní." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400455.
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This master’s thesis describes the design of wall mobile crane and its railway. At the beginning of the work research of suitable hoists is conducted according to important parameters. Following the calculation of basic loads applied during crane operation. Furthermore the determination of the static load and fatigue strength of selected part which is verified by MKP simulation. The work continues with design of selected parts of crane and its railway. This design is solved with respect to relevant standards. In conclusion the final design of machine is drawn.
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Nilsson, Henrik, and Anders Svensson. "Automated Mobile Cranes." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-29479.
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Rauch, Andreas. "Stability analysis of mobile boom cranes." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26535.
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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.Committee Chair: William Singhose; Committee Member: Nader Sadegh; Committee Member: Wayne J. Book. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Kunetková, Lenka. "Stavebně technologický projekt objektu pozemního stavitelství." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227009.
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The subject of this diploma thesis is building technological project of extension of warehouse in Tlumačov based on metal construction. This diploma thesis includes study of realization of main technological process, budget of the building, financial and time plan of building, schedule of works, project of construction site installation, technological regulation of instalacion steel structures and technological regulation of execution industrial floor, inspection and test plan of instalacion steel structures, inspection and test plan of execution industrial floor, design of main mechanisms, design and verification of main lift mechanisms.
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Tomeš, Jakub. "Mobilní stavební jeřáb nosnosti 200 kg." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417078.
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This diploma thesis describes mechanical design of mobile construction crane, specified for moving Silka bricks of weight 200 kg. Thesis contains constructing solution of steel frame - boom, column and chassis. Standard purchased components are also defined in this thesis - hydraulic circuits, el. pulley assembly and wheels. Last part of thesis verifies sufficient safety of designed frame using Finite element method. Output of this thesis are mechanical drawings of welded parts of steel frame and assembly drawing of entire crane.
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Durčák, Petr. "Rozšíření kapacity MŠ Slavkov u Brna – stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225362.
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The object of diploma thesis is a construction technology project capacity extension of nursery school Zvidalek in Slavkov u Brna. Work includes facilities of building site, technological rule of waterproofing, schedule, item budget, plan of checks and tests, design of machinery, safety and health at work and economic, time and transport evaluation of two versions of ceiling construction.
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Morrish, Lena. "Modelling of spreader hoist systems in mobile gantry cranes." Thesis, University of Edinburgh, 1996. http://hdl.handle.net/1842/12689.
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This thesis presents an analysis of the kinematics of a mobile rubber tyred gantry crane (RTG Crane), as typically used for container handling operations, for the ultimate purposes of research into automation. Dynamical models are proposed for the crane based on a simplification of the structure into the gantry frame, the overhead trolley, and the cable mounted spreader slung below the trolley. The underlying trolley/spreader cabling geometry for commonly encountered designs has been analyzed, and novel mathematical relationships have been established for the first time. Full three dimensional motion is encompassed in the dynamical equations of motion, and various movement scenarios are examined. As an adjunct to the geometrical modelling a new phenomenon, described herein as geometrical extension, is defined in its role as an inherent anti-sway property in multi-cabled spreader suspension systems. The phenomenon is explained and investigated using pure geometry and a numerical method to assess its effect in practise. The final section of the thesis uses the single and multi-cable dynamics to evolve an accurate, and generic, fuzzy logic control and simulation for the RTG machine. Various performance scenarios are highlighted for typical freight manoeuvres. This work is now ready for experimental testing and evaluation in an allied project, thus the remit for the theoretical work of this thesis has been completed.
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Venkrbec, Václav. "Sportovně relaxační areál Nový Lískovec - vybraná část STP." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225615.
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Selník, Petr. "Stavebně technologický projekt dvoulodní haly ve Fulneku." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226507.
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The subject of this diploma thesis are chosen parts of building technological project of pursuance of the factory building Massag in Fulnek based on the metal bearing structure. This diploma thesis contents study of realization of main technological process of the hall, financial and time plan of building, project of construction site installation, budget of the construction, time planning of works, inspection and test plan, the project of safety and protection of health at work, technological regulation of building metal bearing structure.
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Bakyta, Marián. "Vybrané části stavebně technologického projektu administrativní budovy s halou v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409913.
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This diploma thesis deals with selected parts of the construction technology project of an office building with a hall in Brno. The thesis contains a technical report, the coordination situation of the construction, the time and financial plan, the study of the main technological stages, the project of site equipment, the design of the main building machines and mechanisms, the time schedule, the budget, the technology prescription of flat single-roof, the quality control and test plan, the assessment of lifting mechanism selection and the design of rainwater capture for further use.
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Vasserbauer, Jiří. "Hasičská stanice Jaroměř - stavebně technologická příprava stavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227298.
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The subject of the diploma thesis is building-technology project of new building Fire station Jaroměř. This preparation includes the processing of technological regulation for, design of site equipment, time schedule, itemized budget, design of machinery confuguration, inspection and test plan, environmental plan and work safety plan.
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Boleček, Richard. "Vybraná část STP Viladomy Zámostí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225614.
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Presented work the master's thesis is solving a build-up technology of a ional building construction . It is a study of main technological phases, focused on foundation building and masonry. The building technological project contains the technology statement and the technological phases primary model, technology procedure, time schedule and financial heftiness, machines formation, check and test plan, occupational safety and as specialism the mechanical drawing details of structure.
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Janíček, Jakub. "Školící středisko Zašová - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227007.
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The subject of work is building-technology project Training center in Zasova. The study includes a technical report on the construction technological project, technical report of the site equipment project including a drawings, design of the main building machines, technical report of transport relations, itemized budget, the detailed time plan of the construction, technology regulations to of the selected construction processes, inspection and testing plans, occupational safety, environment, contract for construction works, major lifting mechanisms evaluation from an economic perspective.
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Struik, Laura Louise. "Young adult smoking cessation and mobile health : a qualitative investigation of the Crush the Crave app." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62196.
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Smoking remains a major public health issue, particularly among young adults because smoking rates are highest in this demographic. With young adults’ low uptake of the various smoking cessation interventions available, innovative ways to support young adult smoking cessation are needed, and there is much enthusiasm about the use of mobile phones, especially apps, to reach this population. How these tools influence smoking cessation, however, remains largely unknown. Therefore, the purpose of this qualitative case study was to understand the design and use of the mobile app, Crush the Crave (CTC), for helping young adults quit smoking. Data included document analysis, fieldwork, and semi-structured interviews with 15 key informants (those involved in the development of CTC) and 31 young adult CTC users. Guided by sociomateriality theory and an affordances approach, as well as a gender-based analysis, data were inductively analyzed to derive thematic findings in relation to the influence of CTC on young adult’s quit smoking efforts. Findings were grouped per the overall strengths and limitations of the app, and the affordances of the app. Affordances were grouped according to each design component of the app: credibility, task support, social support, and dialogue support. Data from key informants revealed the expectations of CTC for helping young adults quit smoking, which were juxtaposed to young adults’ actual experiences with the app. While key informants’ expectations often aligned with young adults’ experiences, there were also some noteworthy differences and additional experiences that the key informants did not anticipate. The credibility, task support, and dialogue support functions lent to largely positive experiences and practices, including trust in the app, encouragement and motivation for quitting, and enhanced awareness of smoking behaviour. The social support component lent to negative user experiences (vulnerability) and practices (low engagement) that rendered this aspect as the weakest component in supporting efforts to quit. There were also some notable gender differences and similarities in relation to the preferences and experiences of young women and men. This study highlights both productive and unproductive approaches to the development of smoking cessation apps, and offers new directions for future improvements and app development.Graduate Studies, College of (Okanagan)
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Příkazský, Michal. "Stavebně technologický projekt nástavby bytového domu v Brně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240284.
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The subject of this final thesis is the construction technological project of extension of the apartment block in Brno. The work contains a comprehensive technical and accompanying report, the proposal for the site facility, also resolves the broader relations of transport routes to the site facility, budget and time plan. In the technological regulations is included the implementation process of ceiling and floor constructions, these regulations also include the proposal of machine set, safety plan and inspection and test plan.
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Fňukal, Radek. "Stavebně technologický projekt výrobní haly v Bystřici nad Pernštejnem." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409920.
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This diploma thesis is dealing with a construction-technological project of a production hall in Bystřice nad Pernštejnem. The main subject of the thesis is a technological report, a realization study of the main technological phases, a coordination situation of the construction with broader relations to transport routes, a project of the office building site equipment, a suggested list of the main construction vehicles, a time plan for the main building objects, technological prescriptions for a prefabricated skeleton and bored piles and documents related to this.
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Kazda, Jiří. "Realizace novostavby hasičské zbrojnice ve Ždírci nad Doubravou." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409932.
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The master´s thesis describes the realization of new building of fire station in Ždírec nad Doubravou. The parts of the thesis are time and financial plan for all building objects, assessment of transport routes, design of site equipment and design of main machines. An itimized budget with a bill of quantities and a detailed construction schedule are prepared for the main building. A technological regulativ and quality control plan are prepared for the stage of industrial steelconcrete floor. In the end of the work, there is solved the noise study of construction and the topic of system infiltration tanks.
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Vaněk, Jiří. "Technologický projekt sportovní haly v obci Nové Veselí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225618.
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This Master's thesis deals with the technological project of sports hall in New Veseli . This work includes the construction and technological equipment for the study site , ZOV , technological regulations, building equipment, wider transport relations, budget calculation , time planning , inspection and test plan , design mechanisms , job security this building , balance resources.
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Šilhová, Kristýna. "Projekt přípravy a realizace výrobní a skladovací haly v Mniší." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372026.
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The diploma thesis deals with the realization of a production and storage hall for the engineering industry. Part of the realization of the production hall is the demolition work of the existing agricultural building. The reconstruction of the existing premises of locksmith's workshop and dressing room for employees is also being implemented. For the preparation of this project, the thesis deals with the implementation of the main technological stages, technological plans for demolition work and substructure, transport routes of the main building materials and machines, technical report of the building site, time and financial plan of the construction, security measures especially for demolition works, quality control when drilling a pilot.
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Chroustovský, David. "Skladovací hala PFM Flexi - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371958.
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The aim of this diploma thesis is the design of an effective construction-technological project for the construction of reinforced concrete prefabricated storage halls by PFM-Flexi, s.r.o. The solution of the chosen problem is the design of the building site equipment, the verification of the transport routes of the key materials, the assembly schemes, the technological regulation and the control and test plan for the precast reinforced concrete frame, the BOZP plan, the comparison of the two versions of the installation in financial terms, the budget item and the schedule of the main building, timetable, calculation timetable and environmental aspects of the construction.
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Havlíček, Jakub. "Zázemí sportovního areálu - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409923.
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This diploma thesis is dealing with a construction and technological project of the backgrounds and changing rooms of the sports centre in Velké Meziříčí. An engineering report of the construction and technological project, a suggested plan of transport routes and a time and financial plan for all the building facilities are included. With a realization study of the main technological phases, a site equipment project and a suggested list of the main construction vehicles and mechanisms is being dealt in another part of the thesis. In addition to these there is a time plan of the main construction object, an itemized budget, a time deployment of machines and workers and a plan for securing all the material resources needed. An engineering report for assembling prewalls from fair-faced concrete plus a design of a systemic formwork follow. More detailed engineering report of a Spiroll ceiling panels’ assembly is part of the inspection and test plan. Last but not least, an OSH plan for installation works with a mobile crane and a noise study can also be found in this thesis.
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Juračka, Lukáš. "Průmyslový areál AQUASYS - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225378.
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This Master’s thesis deals with the technological project of building an industrial complex AQUASYS in Žďár nad Sázavou. This work includes technical reports ZS and STP, site equipment, wider transport relations, budget calculation, time planning, inspection and test plan, mechanical assembly, contract for work and job security for this building.
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Knobloch, Christian. "Entwicklung und kombinierte Verwendung eines Portalharvesters und eines mobilen Seilkransystems in forstlichen Verfahren zur vollmechanisierten Holzernte auf befahrungssensiblen, ebenen Standorten." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-224720.
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Die in dieser Dissertation gebündelte Arbeit versteht sich als Mittel der Problemlösung. Dieses liegt in der Diskrepanz allgemein angewandter, nicht ausreichend angepasster Technik auf einer Vielzahl von Waldstandorten Mitteleuropas.
Ursache dieser Unangepasstheit ist das Verdrängen und Ablösen traditioneller Holzerntemethoden, ausgelöst durch die Durchsetzung ökonomisch leistungsfähigerer skandinavischer Forsttechnik und der Etablierung von allgemein vorteilhafteren Kurzholz- (3 bis 6 m lange Rohschaftsegmente) anstatt Langholzverfahren in Ernte-, Logistik- und Weiterverarbeitungsprozessen. Die dafür nötige Technik für die Holzernte bleibt jedoch auch mit Einsatz von Adaptionen an die mitteleuropäischen Wald- und Bodenverhältnisse nur beschränkt anwendbar, da die nötige Befahrung mit 20-50 Tonnen schweren Rad- und Kettenfahrzeugen bis in unmittelbare Baumnähe entweder eine Konzentration auf Befahrungslinien fordert oder aufgrund von unbefahrbaren Boden- oder Geländeverhältnissen nicht ökologisch nachhaltig vertretbar ist.
In Betracht der Vielzahl an Waldstandortformen Mitteleuropas bedient jeder Typus einsetzbarer Forsttechnik, ob Radfahrzeug oder Seilkran, eine Nische, während dieser außerhalb aufgrund ökonomischer oder ökologischer Ausschlußkriterien nur mit Einschränkungen oder gar nicht einsetzbar ist. Daraus zeigt sich, dass nicht unbedeutende Bereiche Mitteleuropas, namentlich feuchte bis nass ebene Waldstandorte nicht ordnungsgemäß bewirtschaftet werden können, denn diese scheitert am Mangel technisch geeigneter und wirtschaftlich einträglicher, generell ausreichend angepasster Forstmaschinentechnik. Gerade in Zeiten rasant steigender Nachfrage nach nachwachsenden Rohstoffen und in Hinsicht der Tendenz sich verschiebender Wasserbilanzen als auch milderer Winter müssen unter Betrachtung eines kritischen gesellschaftlichen Diskurses im Umgang mit dem „Allgemeingut“ Wald Lösungen für eine nachhaltige Bewirtschaftung dieser Waldstandorte gesucht werden.
Daher wurde in der Arbeit nach ökologisch verträglicher, ökonomisch einträglicher und sozial zuträglicher Technik für den Holzeinschlag und den Transport auf befahrungssensiblen bzw. unbefahrbaren Waldstandorten und ihr Zusammenwirken in forstlichen Verfahren gesucht. Unter Erfindung von acht patentwürdigen Einzellösungen wurden eine Holzerntemaschine mit neuartigem Schreitwerk sowie ein Seilkransystem für den Einsatz auf ebenen Gelände entwickelt, welche gemeinsam, als auch in Kombination mit konventioneller Forsttechnik auf Übergangsstandorten einsetzbar sind. Dazu wurde der Waldboden in seinen Wechselwirkungen mit Forsttechnik sowie bestehende Konzepte zur Vermeidung bzw. Erhaltung der Befahrbarkeit auf diesem analysiert. Anschließend wurde eine GIS-basierte Potentialanalyse zur Ermittlung des Maschinenbedarfes durchgeführt und die Randbedingungen der divergierenden Waldstandorten und nationalen Einsatzszenarien ermittelt, aus denen widerum Lastenhefte für die zu entwicklenden Maschinen und Verfahren abgeleitet wurden.
Der sogenannte Portalharvester bewegt sich nicht mit einem Fahrwerk, sondern auf einer Art überfahrbarer Brücke fort, welche stets mit 8 m Schrittweite in beliebiger Richtung ausgelegt werden kann. Dadurch kann die Maschinenmasse (bei vergleichbarer Leistungsfähigkeit) um 60 % gesenkt, auf Bodenrelativbewegungen gänzlich verzichtet und den Anteil des berührten Bodens im Vergleich zu Radmaschinen von etwa 10 auf unter 1 % reduziert werden. Mit dem Flachlandseilkran kann erstmals eine Kombination mit dem Harvester hergestellt werden, indem Kurzholz in Bündeln aus dem Bestand gerückt werden kann. Der Aufbau kann erstmals ohne natürliche Mast- und Ankerelemente erfolgen und die sattellose Spannweite konnte auf bis zu 400 m verdoppelt werden. In gemeinsamer Verwendung wurden neue vorteilbringende forstliche Verfahren und Erschließungsmuster entwickelt und in ihrer Leistungsfähigkeit und Schonung bewertet.
Unabhängig dieser Arbeit wurden durch die Gewinnung von Industriepartnern und Forschungsprojekten beide Maschinen(systeme) als funktionstüchtige Prototypen entwickelt und getestet, so dass einerseits die theoretischen Grundlagen dieser Arbeit bei der Maschinenentwicklung angewendet werden konnten und es zum großen Teil möglich war, bereits während der Bearbeitung Rückschlüsse auf die theoretischen Grundlagen zu ziehen.
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Voráčová, Tereza. "Stavebně technologický projekt skladovací haly ve Zlíně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392243.
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The final thesis is focused on the solution of the building technology project of storage hall in Zlín. This master’s thesis includes engineering report, studies of major technological stages, solution of transport routes, project of site equipment, design of major machines and mechanisms, technological regulations for steel hall and steel fibre reinforced concrete floor, time schedule, control and test plans for steel hall and steel fibre reinforced concrete floor, budget, time and financial plan, assembly schemes for steel hall and floor assembly.
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Langrová, Petra. "Přístavba tělocvičny - příprava a organizace výstavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227565.
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The diploma thesis deals with the solution of selected parts of the architectural and technological project of the extension of the gym in Krnov, focusing on realization prefabricated reinformed concrete frame and roof deck. For these technological steps the control and test plan and health and safety will be prepared. For complet object SO 03 the schedule, budget, mechanical assambly, principles and organization of construction will be prepared.
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Zelinková, Marta. "Příprava realizace železobetonové skladovací haly v Poličce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392184.
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The aim of this diploma thesis is the design of an effective construction-technological project for the construction of reinforced concrete prefabricated storage halls and halls of Ravensburger Karton s.r.o.. The solution of the chosen problem is the design of the building site equipment, the verification of the transport routes, the assembly schemes, the technological regulation and the control and test plan for the precast reinforced concrete frame, the BOZP plan, the budget item and the schedule of the main building, timetable, calculation timetable and environmental aspects of the construction.
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Ráb, Jakub. "Stavebně technologický projekt haly ADS s.r.o. Větřkovice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391951.
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The subject of my master's thesis is construction technological project of the hall ADS s.r.o. Větřkovice. The work includes technical report of construction technological project, facilities of construction zone, solving traffic routes from the production to the place of construction, study of the implementation of the main technological stages of the building SO02, the most appropriate machine assembly, technological specification for drilled piles and for montage of prefabricated reinforced concrete skeleton, control and test plan, schedule of work, itemized budget, plan of the safety and health protection during work, proposals of design of movement mechanisms and time and financial discretion of realization of the reinforced areas of the production hall area.
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Řeháček, Martin. "Příprava a organizace výstavby výrobního areálu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226494.
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This master’s thesis relate to the preparation and organization of the production area’s construction of the SPEDUR company in Žďár nad Sázavou. The thesis contents technical report on the construction technological project, construction site, time plans, project of the equipment site, draft of the mechanisms, control and testing plan, environmental plan, risks of safety and health at work and calculation for this construction.
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Malý, Martin. "Skladová hala v Měříně, příprava a organizace stavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372192.
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The aim of this work is the processing of the technological project for the ,,Skladová hala v Měříně“, which addresses the preparation and organization of construction. Construction technology the project involves the processing of time plans, economic evaluation, design of pumping sources for construction, working procedures, construction site equipment, and design of major machines and mechanisms. Further, it is processed a detailed technological regulation and inspection and test plan for a prefabricated reinforced concrete skeleton. All technological procedures are processed with regard to work safety and environment.
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Novák, Martin. "Stavebně technologický projekt ZŠ Otevřená, Brno - Žebětín." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227003.
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The constructive – technological project of elementary school in town district Brno – Žebětín, contains the technical report, the assessment of the wider transport relations, the time and financial plan of buildings, technological project of the site equipment, the main construction machines and mechanisms, the technological prescription for the underground construction, the inspection and test plan for the underground construction, the calculation of buildings for the objects, the safety report and the contract for work.
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Tazarourte, Karim. "Espace francilien et organisation des urgences vitales préhospitalières : les traumatismes crâniens graves pris en charge par les SAMU." Thesis, Paris 10, 2012. http://www.theses.fr/2012PA100207/document.
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La prise en charge des urgences vitales préhospitalières en France, est du ressort des SMUR sous l’autorité des SAMU, seuls responsables de l’organisation des soins, du lieu de survenue jusqu’à l’hôpital. L’accessibilité de la population aux équipes médicales des SMUR n’avait jamais été évaluée. Au travers de l’analyse prospective d’une cohorte de 500 patients traumatisés crâniens graves, pris en charge par les SAMU/SMUR en Ile de France, l’apport d’outils SIG a permis d’identifier les caractéristiques d’accessibilité et de disponibilité de l’organisation territoriale des SMUR franciliens. Des territoires ont été identifiés potentiellement à risque, en raison d’une accessibilité des moyens SMUR supérieure à 30 minutes. Cependant, le critère d’accessibilité pris isolément, masque de fortes inégalités dans l’organisation territoriale des SMUR. La disponibilité d’un SMUR est un critère essentiel, rarement évalué. La prise en charge du traumatisme crânien grave illustre parfaitement la situation. La réflexion géographique et l’utilisation des outils SIG permettent de pouvoir évaluer et visualiser objectivement les atouts et faiblesses de l’organisation territoriale d’un système de santé et de proposer des modèles d’organisation pertinentsIn France, the prehospital life threatning emergency are managed by mobile medical team (MMT) and an medical dispatcher service called SAMU. Access to medical mobile team, is a strong criterion but never has been estimated. Throughout a Paris regional study, who concerned five hundred severe traumatic head injury managed during two years by MMT, we perform, with tools GIS , an assessment of accessibility and availability to MMT in Paris area. We concluded that the SAMU organization made strong disparity in the area coverage
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Tien, Kuo, and 張國田. "Analysis on Accident of Operation of Mobile Crane." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/74116650349365389563.
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碩士國立雲林科技大學
環境與安全工程系碩士班
93
This Thesis research about Mobile Crane is the most important machine in industry. If it is bad to design in addition, will operate the improper factor in the future, it is apt to cause the boom to destroy, cause great danger and loss. This Research object is marking boom of TR-500M wheel competent type crane made by TADANO Company of Japan ，once happened boom rupture occupational accident of「O section project newly-built of O highway」 D project Co., Ltd. hiring labor falling calamity in engaged in the moulds lasting job in Miaoli County. In this case, besides probing into the reason of the accident and violating the regulation of the decree ，then hanging the external force on the to section six of the boom and make intensity analysis . Besides using the finite element analysis software ANSYS to analysis, and then cooperate with the traditional computing technology and portable hoist computer auxiliary examination software of The Institute of Occupational Safety and Health (IOSH) and self-made Excel computer program analyses result to compare, prove each other that judges whether the analysis result is correct. According to the result of analysis, ANSYS analyses and self-made computer program analyses that is close to traditional result of calculation, and can do stress analysis with the practical operation situation. It is worth consulting to represent the finite element analyses and self-made computer program analyses. And analysis with the computer auxiliary examination software and self-made computer program that learning, the boom of crane has already gone beyond one''s own intensity of destruction of its structural material while carrying on the operation, it is already in dangerous state to represent the boom and operate at that time, command personnel and hold attention to all fail to find and take the proper precautionary measures in time, cause the Occupational Accident to take place. So, the objective of this research is besides probing into the reason of the Occupational Accident and improve the measure to endanger by reducing it further .In purpose of this research, it can to help justice to some safety of crane, in order to reduce Occupational Accident, to maintain labor in safe.
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Chang, Ching-han, and 張淨涵. "Mobile Crane Occupational Accident Statistics and Analysis of Safety Inspection Regulations." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/34850465462911015405.
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碩士國立臺灣科技大學
機械工程系
102
Mobile crane is a commonly-used lifting machinery in the construction field. Due to the high mobility property, it is also comprehensively used in the industry. This study provides the statistics number of occupational accident during 2002 to 2012. The document shows that falling takes up 32%, which is the highest percentage among all. The general factors of the accidents results from : (1) The labors are not equipped with safety protections which based on the regulations. ; (2) The on-site manager is not committed to his duty, leaving the labors work under a high-risk working situation. After collecting the domestic safety and health management information, the study indicates that over 50% of the regulations are not performed in accordance with the provisions. Comparing with the provisions abroad, the essential time table for examining mobile crane is not clearly set up in current provisions in Taiwan. The comparisons reveal that the evasion of the regulations is mostly on account for the accidents.
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Chang, Po Wei, and 張勃緯. "Controller Design of over-load System for Mobile Crane by Fuzzy Logic." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/49438802413150338573.
Full textAbstract:
碩士淡江大學
機械工程學系
87
Due to the rapid industrial development recently, the applications of truck cranes have been gradually increased.However,the degree of danger in applying these devices has also increase resulting from the expedite growth of the usage of the truck cranes.Therefore,the study in preventing over-loading has become urgent and important subject of truck cranes. The most important work of this research will emphasize on the Coupling problems between length,rise angle and rotation angle of the truck cranes in order to avoid dangerous situation caused by over-load.The over load dynamic equation is developed and applied into controller design,In the design processes,The controller(Fuzzy-Logic)is designed to solve the coupling problems.Another controller (Fuzzy-All) is studied and compared with the previous one (Fuzzy-Logic).The purpose of this research is to decrease the Fuzzy rules for the future application.The software package,Matlab,Simulink and Fuzzy Tool Box are applied to computer (PC).In the conclusion,The simulation result of Fuzzy-All controller is better than that of Fuzzy-logic controller. Finally,The Fuzzy-All controller and three proportional valves are used to the system experiments to avoid the over-load in a crane .