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Journal articles on the topic 'Mobile crane'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Struková, Z., and M. Ištvánik. "Tools for mobile crane selecting and locating." International Review of Applied Sciences and Engineering 2, no. 1 (June 1, 2011): 69–74. http://dx.doi.org/10.1556/irase.2.2011.1.11.

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Abstract Definition of types, amount and positions of cranes in construction site planning has a big impact on the overall productivity and cost effectiveness of a construction project. It is not rare, that engineers during preparation phase of construction fault in crane selection. It implies big financial losses for the company because of wrong crane rent. In visualisation of mobile crane operation in 3D is noticeable that working radius of the crane is considerably less then number listed in crane technical documentation (capacity chart). The built construction itself can reduce the crane radius when the crane boom snags the built object edge. Several computer applications were developed in order to help practitioners in selecting and using of cranes. In the paper is presented one version of non-commercial software tool (Mobile Crane Simulator) useful in construction preparation as a tool for selecting and locating of the mobile crane at construction sites. The tool was developed by authours of the paper. The principles of the tool creation are also explained.

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2

Gwak, Han-Seong, Hong-Chul Lee, Byoung-Yoon Choi, and Yirong Mi. "GA-Based Optimization Method for Mobile Crane Repositioning Route Planning." Applied Sciences 11, no. 13 (June 28, 2021): 6010. http://dx.doi.org/10.3390/app11136010.

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Mobile cranes have been used extensively as essential equipment at construction sites. The productivity improvement of the mobile crane affects the overall productivity of the construction project. Hence, various studies have been conducted regarding mobile crane operation planning. However, studies on solving RCP (the repositioning mobile crane problem) are insufficient. This article presents a mobile crane reposition route planning optimization method (RPOS) that minimizes the total operating time of mobile crane. It converts the construction site into a mathematical model, determines feasible locations of the mobile crane, and identifies near-global optimal solution (s) (i.e., the placement point sequences of mobile crane) by implementing genetic algorithm and dijkstra’s algorithm. The study is of value to practitioners because RPOS provides an easy-to-use computerized tool that reduces the lengthy computations relative to data processing and Genetic Algorithms (GAs). Test cases verify the validity of the computational method.

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3

Yoon, Bok-Joong, Kil-Soo Lee, and Jae-Hak Lee. "Study on Overturn Proof Monitoring System of Mobile Crane." Applied Sciences 11, no. 15 (July 24, 2021): 6819. http://dx.doi.org/10.3390/app11156819.

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While up-right build structures are under construction, an over-hung crane has a major role in efficient lifting and transporting heavy materials from one point to another. There are several types of cranes for a variety of construction sites, such as bridge/overhead, barge lift, tower crane, etc. The mobile crane is one of the most widely used types of construction equipment due to its mobility. Unfortunately, the number of crane accidents including casualties and deaths has increased over the last decade. In order to reduce these fatal tragedies, a dynamic simulator of mobile cranes based on analyzed overturn limit data has been developed and analysis results have been applied to site tests. The test bench is formulated to simulate the actual construction field and some practical experiments have been performed in realistic manners of operation. Moreover, wireless network communication systems are applied for monitoring the status of the crane from a distance where visibility is not secure. Consequently, the applicability in the field derived from operating the simulator and actual vehicle testing confirmed the feasibility of applying it to construction sites.

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Černeckytė, M., M. Kurmis, A. Andziulis, and G. Gaigals. "Wireless Inter-Crane Communication Method for Multi-Crane Scheduling in Maritime Container Terminals / Bezvadu Komunikācijas Tīkla Pielietojums Ostas Darba Efektivitātes Uzlabošanai." Latvian Journal of Physics and Technical Sciences 50, no. 5 (October 1, 2013): 13–19. http://dx.doi.org/10.2478/lpts-2013-0029.

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Abstract One of the main problems in the maritime container terminals is inefficient use of technical (quay cranes, yard cranes, mobile cranes) and human resources. All this affects negatively the scheduling of transportation and storage processes in the terminals. A new method proposed for the multicrane scheduling in maritime container terminals is based on the wireless inter-crane communication networks and dynamical localization of the mobile cranes using the Differential Global Positioning System (DGPS) technologies. It is shown that this method outperforms significantly the currently used owing to better time dependence of the crane traveling distance which allows for saving time resources.

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5

Kaytukov, Batraz, and Michail Stepanov. "Current Issues of Mobile Cranes Unification." MATEC Web of Conferences 251 (2018): 03011. http://dx.doi.org/10.1051/matecconf/201825103011.

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The issue of unification of key parts of mobile cranes unification is under study. An explicit comparative analysis of the state of production of mobile cranes in Russia and abroad was carried out. The unit-modular method of completing of crane mechanisms is offered. Creation of efficient unified planetary modular gear trains for mobile

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6

Ren, Weijun, Zifeng Wu, and Lei Zhang. "Real-time planning of a lifting scheme in mobile crane mounted controllers." Canadian Journal of Civil Engineering 43, no. 6 (June 2016): 542–52. http://dx.doi.org/10.1139/cjce-2015-0110.

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Ensuring the safety and efficiency of crane operation is challenging due to the complexity of the lifting operation. The real-time lifting path planning system developed in this paper aims to provide an optimized, collision-free lifting path for mobile crane operators. The first contribution of the developed system is to take advantage of crane mounted sensors and components as the hardware to collect object information. No additional device needs to be purchased. Secondly, the data storage, path planning, optimizing, and visualizing functions are designed to minimize the required computer memory so that the system can be installed and applied on the crane mounted controller for real-time operation. No additional calculation capacity is required. This system has been tested in real construction sites and demonstrated its ability to generate lifting paths satisfying operators’ expectation. The system, as an independent software package, can be installed on any mobile cranes mounted with the necessary hardware.

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7

Mijailović, Radomir. "MODELLING THE DYNAMIC BEHAVIOUR OF THE TRUCK-CRANE." TRANSPORT 26, no. 4 (January 9, 2012): 410–17. http://dx.doi.org/10.3846/16484142.2011.642946.

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The paper deals with the problem of a dynamic analysis of truck-cranes. Therefore, the article has developed a mechanical-mathematical model having 18 generalized coordinates. Depending on the type of truck crane operation as well as on the fact whether the aim of the article is to conduct the dynamic analysis of the whole truck crane or only that of one of its components, simpler mechanical models are also offered. The presented model is more realistic than those describing the dynamic behaviour of the truck-crane performing all necessary functions, i.e. a mobile means of lifting, transportation and reloading.

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8

Guo, Ke Xi, Hua Zong, and Ying Huang. "Research on Collaborative Design System of Mobile Crane." Advanced Materials Research 291-294 (July 2011): 2476–79. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.2476.

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The concept of collaborative design and mobile crane designing are discussed, a method of concurrent engineering technique applied in mobile crane designing within network circumstance has been proposed. And a detailed description is carried on a sort of key technology—the line browsing and revision, which is based on a re-development of the SolidWorks drawing software on the .NET platform, the parametric design module of mobile crane is complete. Besides, with support of digitized coordination design tool, the Mobile Crane coordination design platform is constructed.

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9

Eden, J. F., P. Homer, and A. J. Butler. "The Dynamic Stability of Mobile Cranes." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 199, no. 4 (October 1985): 283–93. http://dx.doi.org/10.1243/pime_proc_1985_199_168_01.

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Overturning occurs in an unacceptabtably high proportion of accidents to mobile cranes. These are often considered to operate as static machines and empirical factors are used to make allowance for dynamic effects. This paper examines a number of static and dynamic effects that contribute to a reduction in crane stability. It introduces the concept of a ‘stability quotient’ to indicate the ratio of an overturning moment under dynamic conditions to its static equivalent. The results of tests to verify theoretical findings are discussed. A reduction in slewing speeds is one of the principal recommendations.

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Farajmandi, Mahmoud, Mostafa Ali, Rick Hermann, and Simaan AbouRizk. "A decision support tool for planning module installation in industrial construction." Engineering, Construction and Architectural Management 27, no. 9 (June 29, 2020): 2615–41. http://dx.doi.org/10.1108/ecam-01-2019-0069.

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PurposeProperly planned module installation on an industrial site is a critical factor in delivering a project safely, on time and within budget. Different sizes of heavy-duty mobile cranes are used to pick, swing and place the modules. Crane selection depends on module size and weight, as well as crane availability, location and configuration. Weeks can be spent in trial and error to prepare and improve module installation plans due to the large number of ways to install the modules on site, high crane operating costs and other crane-module constraints. A tool to automatically generate module installation plans is essential.Design/methodology/approachThis paper presents a novel heuristic-based methodology for planning and sequencing module installation on industrial construction sites that takes into account proposed technological constraints.FindingsCase studies are presented to demonstrate the ease and effectiveness of the developed methodology in planning module installations.Originality/valueOn a complex project, the tool can save time in preparing the installation plan, while also reducing the amount of crane supporting tasks (foundation preparation and crane movement).

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Cheng, Xian Chun, Xiao Wei Jiang, and Zi Xuan Cheng. "Design and Exploration on Automobile Crane Mobile Counterweight Balance." Applied Mechanics and Materials 457-458 (October 2013): 1503–6. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.1503.

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The automobile crane is a crane which is arranged on a common chassis or special automobile chassis, the driving cab and a lifting control room. The advantages of this crane is good mobility, transfer quickly. weight body truck crane is a very important part, but also a key part of the whole balance, its main function is to balance the gravity center of the whole lifting, make more stable, more safety. The current general crane are fixed weight, the weight is directly arranged motionless in the car tail, installation or transportation unloading work. This design is mainly the counterweight body is designed into a movable and rotatable, this mechanism has good flexibility, can adjust the balance weight body position, equivalent to adjust the focus of the counterweight body, enhance the lifting capacity and safety.

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12

Tian, Jiahao, Sang Luo, Xinming Wang, Jing Hu, and Jun Yin. "Crane Lifting Optimization and Construction Monitoring in Steel Bridge Construction Project Based on BIM and UAV." Advances in Civil Engineering 2021 (July 31, 2021): 1–15. http://dx.doi.org/10.1155/2021/5512229.

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Modular construction methods are adopted in many spatial and temporal limited projects. As the major equipment used in modular construction, the mobile crane affects the safety and efficiency of construction significantly. Currently, building information modeling (BIM) is widely adopted to improve the lifting operation planning of cranes. However, the inaccurate simulation of the dynamic construction environment makes those BIM-based lifting operation planning methods unsuitable for land mobile cranes operation planning, such as in the overpass bridge construction project, which may cause several safety risks during the lifting process. Based on an overpass steel bridge construction project, this paper attempted to integrate the BIM and unmanned aerial vehicles (UAVs) to streamline lifting operation planning and construction monitoring. Specifically, in the preliminary stage, a level of development (LOD) 400 steel superstructure model was built and then divided into eighty sections. In addition, a three-dimensional (3D) geology model of the as-is construction site was modeled by UAV-captured images. Then, a fusion model which contains the lifting modules models, the as-is site model, and the crane model was gathered, based on which the collision detection was conducted by 4D crane operating path simulation. According to the results, three potential collisions were found and eliminated by lengthening the jib of the crane from 43.5 m to 46.5 m. Furthermore, the optimum crane location for lifting each steel structure was determined based on the 3D geology model. The study shows that the UAV is able to acquire geological information and then 3D simulates the real construction environment quickly and accurately. Furthermore, BIM and UAV have the potential to optimize the design and construction as well as the monitoring of bridge projects.

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Lei, Zhen, Hosein Taghaddos, SangHyeok Han, Ahmed Bouferguène, Mohamed Al-Hussein, and Ulrich Hermann. "From AutoCAD to 3ds Max: An automated approach for animating heavy lifting studies." Canadian Journal of Civil Engineering 42, no. 3 (March 2015): 190–98. http://dx.doi.org/10.1139/cjce-2014-0313.

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Modular construction is a dominant manufacturing method for industrial construction in Alberta, Canada. Modularization requires large-capacity mobile cranes to lift heavy modules, such as piperack modules. The current practice utilizes AutoCAD to generate heavy lift studies for modular onsite installations. Heavy lift studies consist of 2D and 3D simulations of the lifting scenarios, along with the corresponding calculations (e.g., lifting capacity checking, ground bearing pressure checking). These static simulations provide snapshots of mobile cranes at pick and set configurations, but they do not represent the movements between the two configurations. For better communication among site engineers and crews, current static heavy lift studies need to be improved by animating the entire lifting process. 3ds Max is an animation tool that can visualize the lifting process, but the tedious and manual process of preparing the animation restricts efficiency and productivity. This research thus introduces a newly developed animation system that automates the transfer of heavy lift studies from AutoCAD into Autodesk 3ds Max animation. Also in this research, the kinetics of mobile cranes are studied and generic crane movements are defined. Using MAXScript, a script is written to link the crane and project database for automatic generating of animations. This research aims to provide the construction industry with a generic method for automating the animation process for heavy lifts based on AutoCAD and 3ds Max systems.

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14

Proto, Andrea Rosario, Alois Skoupy, Giorgio Macri, and Giuseppe Zimbalatti. "Time consumption and productivity of a medium size mobile tower yarder in downhill and uphill configurations: a case study in Czech Republic." Journal of Agricultural Engineering 47, no. 4 (December 15, 2016): 216. http://dx.doi.org/10.4081/jae.2016.551.

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Cable cranes are among the most important means of yarding and transporting timber in many mountainous regions of Europe. In the last decade, all-terrain mobile tower cable cranes have been increasing due to their adaptability to operate both in uphill as well in downhill configuration. This research assesses the efficiency and the costs of a mobile cable crane manufactured in Czech Republic and designed for all-terrain application and specifically mounted on a wheeled agricultural tractor. A total of 100 cycle times were recorded in order to obtain evaluate the performance in the downhill as well uphill extraction configuration. The productivity analysis was based on regression equation as a function lateral distance, skyline slope distance and extracted volume. Increasing in number of lateral distance and extraction distance resulted as significant variables affecting the cycle time. Even if the test highlights a good efficiency of the extraction system for both the configuration (uphill vs downhill) there a still many organisational features that could be improved in order to fully exploit the potentiality of the tested cable crane system.

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15

Noh, Soo-Hoon, Yong-Seok Lee, Sang-Ho Kim, Jae-Sang Cho, Chang-Soo Han, Seung-Yeol Lee, and Dong-Eun Lee. "Economical Auto Moment Limiter for Preventing Mobile Cargo Crane Overload." Sensors 20, no. 21 (November 7, 2020): 6355. http://dx.doi.org/10.3390/s20216355.

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This study presents a computational method called economical auto moment limiter (eAML) that prevents a mobile cargo crane from being overloaded. The eAML detects and controls, in real time, crane overload without using boom stroke sensors and load cells, which are expensive items inevitable to existing AML systems, hence, being competitive in price. It replaces these stroke sensors and load cells that are used for the crane overload measurement with a set of mathematical formula and control logics that calculates the lifting load being handled under crane operation and the maximum lifting load. By calculating iterative them using only a pressure sensor attached under the derrick cylinder and the boom angle sensor, the mathematical model identifies the maximum descendible angle of the boom. The control logic presents the control method for preventing the crane overload by using the descendible angle obtained by the mathematical model. Both the mathematical model and the control logic are validated by rigorous simulation experiments using MATLAB on two case instances each of which eAML is used and not used, while changing the pressures on the derrick cylinder and the boom angle. The effectiveness and validity of the method are confirmed by comparing the outputs obtained by the controlled experiments performed by using a 7.6 ton crane on top of SCS887 and a straight-type maritime heavy-duty crane along with eAML. The effects attributed to the load and the wind speed are quantified to verify the reliability of eAML under the changes in external variables.

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Kalwasiński, Dariusz. "Mobile simulator of the crane to support trainings of crane operators – a concept." Mechanik 91, no. 7 (July 9, 2018): 609–11. http://dx.doi.org/10.17814/mechanik.2018.7.99.

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Presented are crucial indications to build a mobile crane simulator. The simulator will be build on the basis of a laboratory version of crane simulator prototype created in CIOP-PIB. The article also presents principles of its modifications concerning its compatibility with minimal requirements of training programme by UDT. The simulator will allow the supported of practical training of crane operators conducted by training centers.

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Romanello, Giuseppe. "Stability analysis of mobile cranes and determination of outriggers loading." Journal of Engineering, Design and Technology 16, no. 6 (December 4, 2018): 938–58. http://dx.doi.org/10.1108/jedt-05-2018-0084.

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Purpose The purpose of this paper is to develop mathematical tools that are reliable and easily implementable in computer codes, which address the determination of the outriggers reaction of mobile cranes and the monitoring of the actual stability margin available during lift operations. Design/methodology/approach An algorithm that determines the load transmitted to the ground by a mobile crane with four outriggers has been developed. Static theory of rigid body is adopted for the development of the algorithm and the static indeterminancy, due to the presence of more than three outriggers, is eluded through the adoption of specific hypotheses. An analysis of crane stability is also performed, and a method to monitor the actual stability behavior during lift operations is suggested. Findings A case study is proposed to test the algorithm and outcomes show a good matching with the actual outriggers reaction measured during a test conduct in situ. Two indices are introduced as a measure of the stability margin. Research limitations/implications The method developed accounts only for gravitational forces statically applied. Future works should be addressed to extend the model to the effect of wind and inertial forces. Practical implications This paper supplies a reliable tool to assess, in the design phase of a lifting operation, the compliance between bearing capacity of the ground and loads transmitted by outriggers. The method proposed for the analysis of the stability behavior is suitable for the development of an anti-upset device. Originality/value This study contributes to efforts to increase safety during lifting operations with mobile cranes. The method proposed is applicable to cranes with any geometry of the outriggers pattern and is extensible to a number of outriggers greater than four. Furthermore, the evaluation of the measure in real time of the stability margin, is not affected by the data entered by the crane’s operator with the consequence that human factor does not affect this measure.

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Reddy, H. Raghunatha, and Koshy Varghese. "Automated Path Planning for Mobile Crane Lifts." Computer-Aided Civil and Infrastructure Engineering 17, no. 6 (November 2002): 439–48. http://dx.doi.org/10.1111/0885-9507.00005.

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Shirokoff, J. "Mobile harbor crane wheel hub fatigue failure." Practical Failure Analysis 3, no. 1 (February 2003): 81–84. http://dx.doi.org/10.1007/bf02717413.

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Chulkov, Vitaly. "Anthropotechnical reliability in the reconstruction of the mobile environment of the means of mechanization and transportation." E3S Web of Conferences 157 (2020): 02025. http://dx.doi.org/10.1051/e3sconf/202015702025.

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An experimental and innovation study of the comfort level and organizational and anthropotechnical reliability of the mobile environment (panel trailer cabin, truck crane cabin and tower crane cabin) of the means of mechanization and transportation in construction was carried out using organizational and functional technology for express diagnostics of the comfort level of workers engaged in production activities in specific mobile environment during the working day.

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Kacalak, W., Z. Budniak, and M. Majewski. "Stability Assessment as a Criterion of Stabilization of the Movement Trajectory of Mobile Crane Working Elements." International Journal of Applied Mechanics and Engineering 23, no. 1 (February 1, 2018): 65–77. http://dx.doi.org/10.1515/ijame-2018-0004.

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AbstractThe article presents a stability assessment method of the mobile crane handling system based on the safety indicator values that were accepted as the trajectory optimization criterion. With the use of the mathematical model built and the model built in the integrated CAD/CAE environment, analyses were conducted of the displacements of the mass centre of the crane system, reactions of the outrigger system, stabilizing and overturning torques that act on the crane as well as the safety indicator values for the given movement trajectories of the crane working elements.

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Kjelland, Magnus B., and Michael R. Hansen. "Offshore Wind Payload Transfer Using Flexible Mobile Crane." Modeling, Identification and Control: A Norwegian Research Bulletin 36, no. 1 (2015): 1–9. http://dx.doi.org/10.4173/mic.2015.1.1.

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Janusz, Jarosław, and Jacek Kłosiński. "Application of Non-Linear Correction Systems for Control of Work Movements of the Mobile Crane under a Threat of Stability Loss." Solid State Phenomena 164 (June 2010): 25–30. http://dx.doi.org/10.4028/www.scientific.net/ssp.164.25.

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A payload displacement in mobile cranes is performed via an adequate composition of working movements. Hoists are used for lifting and lowering of a payload. The following devices are used for displacement of a payload from initial point to another one: a mechanism for generation of crane slewing motion and a mechanism of reach variation. Displacement of heavy payloads by mobile cranes in some conditions can lead to a loss of stability. In this paper authors propose assessment of a stability surplus via: monitoring of values of stress forces of the supports on the ground, calculation of the vertical resultant force of these stress forces and determination of the acting point of the resultant force. The mathematical model of the control system (regulating chassis slewing motion) integrated in the intervention system of a jib reach is presented. Finally, some representative results of numerical simulations are provided.

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Wang, Xin, Y. Y. Zhang, Di Wu, and Shun De Gao. "Collision-Free Path Planning for Mobile Cranes Based on Ant Colony Algorithm." Key Engineering Materials 467-469 (February 2011): 1108–15. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.1108.

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This paper presents the work done towards searching a collision-free path for mobile crane based on C-space in the complex 3D working environment. The crane is simplified into three degrees of freedom (DOFs) robot, each of which is represented as an axis of configuration space (C-space). In this paper, we propose an improved ant colony approach for crane path planning, which takes into full account of not only the factor of the shortest path but also the factor of safety. In this approach, we employ more complete heuristic information, introduce adaptive pheromone volatilization coefficient and pheromone penalty factors, and prevent ants from falling into trap and the stagnation. The reasonability and practicability of the proposed approach for automated path planning is verified by comparing the performances of the present approaches in the practice case, and the comparison results show that the algorithm can gain a relatively optimal solution in short time and have a great value of engineering application.

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YOSHIMI, Masayuki, Etsuji YOSHIHISA, Yutaka MAEDA, Tetsuya SASAKI, and Takashi HONDA. "Working load characteristics of the lattice jib mobile crane." Proceedings of the JSME annual meeting 2003.5 (2003): 207–8. http://dx.doi.org/10.1299/jsmemecjo.2003.5.0_207.

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Hong, Keum-Shik, and Quang Hieu Ngo. "Dynamics of the container crane on a mobile harbor." Ocean Engineering 53 (October 2012): 16–24. http://dx.doi.org/10.1016/j.oceaneng.2012.06.013.

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Stemp, Bruce A., and John Walewski. "Lampson Transi-Lift Mobile Crane: Concept, Design, and Use." Journal of Construction Engineering and Management 137, no. 10 (October 2011): 785–92. http://dx.doi.org/10.1061/(asce)co.1943-7862.0000380.

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Alam, M. R., S. F. Hassan, M. A. Amin, K. Arif-Uz-Zaman, and M. A. Karim. "Failure Analysis of a Mobile Crane: A Case Study." Journal of Failure Analysis and Prevention 18, no. 3 (March 22, 2018): 545–53. http://dx.doi.org/10.1007/s11668-018-0437-1.

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Mousaei, Ali, Hosein Taghaddos, Ala Nekouvaght Tak, Saeed Behzadipour, and Ulrich Hermann. "Optimized Mobile Crane Path Planning in Discretized Polar Space." Journal of Construction Engineering and Management 147, no. 5 (May 2021): 04021036. http://dx.doi.org/10.1061/(asce)co.1943-7862.0002033.

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SUGANO, Naoki, Naoto HORI, and Yasuo ICHIKAWA. "Dynamic problem of mobile crane and application of simulation." Proceedings of Mechanical Engineering Congress, Japan 2020 (2020): F25205. http://dx.doi.org/10.1299/jsmemecj.2020.f25205.

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Klomp, Sander R., Guido M. Y. E. Brouwers, Rob G. J. Wijnhoven, and Peter H. N. de With. "Rare-Class Extraction Using Cascaded Pretrained Networks Applied to Crane Classification." Electronic Imaging 2020, no. 6 (January 26, 2020): 49–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.6.iriacv-049.

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Overweight vehicles are a common source of pavement and bridge damage. Especially mobile crane vehicles are often beyond legal per-axle weight limits, carrying their lifting blocks and ballast on the vehicle instead of on a separate trailer. To prevent road deterioration, the detection of overweight cranes is desirable for law enforcement. As the source of crane weight is visible, we propose a camera-based detection system based on convolutional neural networks. We iteratively label our dataset to vastly reduce labeling and extensively investigate the impact of image resolution, network depth and dataset size to choose optimal parameters during iterative labeling. We show that iterative labeling with intelligently chosen image resolutions and network depths can vastly improve (up to 70×) the speed at which data can be labeled, to train classification systems for practical surveillance applications. The experiments provide an estimate of the optimal amount of data required to train an effective classification system, which is valuable for classification problems in general. The proposed system achieves an AUC score of 0.985 for distinguishing cranes from other vehicles and an AUC of 0.92 and 0.77 on lifting block and ballast classification, respectively. The proposed classification system enables effective road monitoring for semi-automatic law enforcement and is attractive for rare-class extraction in general surveillance classification problems.

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Han, SangHyeok, Ahmed Bouferguene, Mohamed Al-Hussein, and Ulrich (Rick) Hermann. "3D-Based Crane Evaluation System for Mobile Crane Operation Selection on Modular-Based Heavy Construction Sites." Journal of Construction Engineering and Management 143, no. 9 (September 2017): 04017060. http://dx.doi.org/10.1061/(asce)co.1943-7862.0001360.

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Krynke, Marek, and Alan Vaško. "Management The Safety of Exploitation of the Rotation Mechanism in a Self-Propelled Crane." System Safety: Human - Technical Facility - Environment 1, no. 1 (March 1, 2019): 624–31. http://dx.doi.org/10.2478/czoto-2019-0079.

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AbstractThe article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems supporting structures of the machine was taken into account in the identification of the load. The consideration are illustrated by the example slewing bearing from self-propelled crane. FEM method was used for calculations. The basic problems of construction of numerical model were discussed. Sample calculations of bearing carrying capacity has been done taking into account flexibility of bearings supporting structures, which also allowed to define the internal load distribution in the bearing. On example of the supporting structure of the mobile crane DST 5050 the internal load distribution in the crane bearing at different positions of the crane machine body were defined. During the rotation of the crane body priority angels were indicated. It has been shown that the deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by the individual bearing rollers.

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Jung, Yun-Su, MIn-Seok Kim, and Wan-Suk Yoo. "59296 MULTIBODY DYNAMIC ANALYSIS OF OPERATING MECHANISM IN A MOBILE HARBOR CRANE(Multibody System Analysis)." Proceedings of the Asian Conference on Multibody Dynamics 2010.5 (2010): _59296–1_—_59296–4_. http://dx.doi.org/10.1299/jsmeacmd.2010.5._59296-1_.

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Chukwulozie, Okolie, Obika Nnaemeka, Azaka Andrew, and Sinebe Ebieladoh. "Steel Work Design and Analysis of a Mobile Floor Crane." British Journal of Applied Science & Technology 13, no. 5 (January 10, 2016): 1–9. http://dx.doi.org/10.9734/bjast/2016/23079.

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Sun, Guangfu, Michael Kleeberger, and Jie Liu. "Complete dynamic calculation of lattice mobile crane during hoisting motion." Mechanism and Machine Theory 40, no. 4 (April 2005): 447–66. http://dx.doi.org/10.1016/j.mechmachtheory.2004.07.014.

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Struková, Zuzana, Mária Kozlovská, and Marián Ištvánik. "Mobile Crane Selection Based on Workspace Requirements and Cost Parameters." American Journal of Civil and Structural Engineering 1, no. 1 (2014): 5. http://dx.doi.org/10.12966/ajcse.01.02.2014.

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Esqué, Salvador, Albert Raneda, and Asko Ellman. "Techniques for Studying a Mobile Hydraulic Crane in Virtual Reality." International Journal of Fluid Power 4, no. 2 (January 2003): 25–35. http://dx.doi.org/10.1080/14399776.2003.10781163.

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39

Wadsworth, E. "The Design and Development of a Very Large Mobile Crane." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 199, no. 2 (April 1985): 79–88. http://dx.doi.org/10.1243/pime_proc_1985_199_144_01.

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This paper describes the development of a rough terrain construction site vehicle with details of the vehicle suspension system, the structural concept, lifting and levelling facilities and the crane's capability of negotiating obstacles and gradients whilst fully loaded.

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Nielsen, Brian, Henrik C. Pedersen, Torben O. Andersen, and Michael R. Hansen. "Modelling and simulation of mobile hydraulic crane with telescopic arm." Australian Journal of Mechanical Engineering 2, no. 2 (January 2005): 105–16. http://dx.doi.org/10.1080/14484846.2005.11464484.

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Pędrak, Tomasz, and Jacek Kłosiński. "Control of Mobile Crane by Means of Fuzzy Logic Controller." Solid State Phenomena 144 (September 2008): 202–7. http://dx.doi.org/10.4028/www.scientific.net/ssp.144.202.

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Modern computer technology and knowledge on building of mathematical models enable creation of models of control systems. These systems can be created for different objects without any need to build real scientific test stands in the initial stage of investigations. It, in turn, enables an essential limitation of the costs as well as performance of fast analysis of usability of the defined methods. This approach constitutes a big improvement in a whole process of designing of such a system.

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Tak, Ala Nekouvaght, Hosein Taghaddos, Ali Mousaei, Anahita Bolourani, and Ulrich Hermann. "BIM-based 4D mobile crane simulation and onsite operation management." Automation in Construction 128 (August 2021): 103766. http://dx.doi.org/10.1016/j.autcon.2021.103766.

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Reutov, Aleksandr. "CALCULATING AND MODELING ROPE MECHANISM OF A MOBILE CRANE TELESCOPIC BOOM." Automation and modeling in design and management 2021, no. 1 (March 30, 2021): 13–22. http://dx.doi.org/10.30987/2658-6436-2021-1-13-22.

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Power analysis and computer modeling of moving the telescopic boom rope mechanism using the “Universal Mechanism” software package, considering the mechanical characteristics of the ropes, boom sections and their contact interaction, have been carried out. The dependences for calculating the preliminary tension of the ropes are obtained, the regularities of operating the cable mechanism of the crane telescopic boom are established.

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Liu, Jian Bin, and Hai Bo Xie. "Research on Characteristics and Key Design Parameters of a Pilot-Assisted Load Control Valve." Applied Mechanics and Materials 541-542 (March 2014): 1203–10. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.1203.

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This paper reports the simulation and experimental results of a type of widely used load control valve. The investigated load control valve is usually applied to the mobile crane booming hydraulic circuit. It is used to balance the overrunning load due to gravity and to modulate the flow of oil when lowering the load. The load control valve has a significant influence on the performance of mobile crane booming system. A simulation model of the load control valve is established based on AMESim, moreover, a bench-test is conducted to evaluate the performance of the load control valve. The simulation results and the experiment data agree well and both results show a good performance of the valve. Further study of the effect and the inner principle of the key design parameters of the load control valve are also presented.

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Kłosiński, Jacek, and Jarosław Janusz. "Control of Operational Motions of a Mobile Crane under a Threat of Loss of Stability." Solid State Phenomena 144 (September 2008): 77–82. http://dx.doi.org/10.4028/www.scientific.net/ssp.144.77.

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A mathematical model of the control system of a mobile crane is presented in the paper. The system controls the slewing motion of the chassis as well as it is applied in the model of the emergency subsystem which changes the jib reach. The latter one is initiated at the moment when the threat of loss of stability occurs. Some results of numerical analysis are presented in this paper. The results are related to different strategies of control of the slewing motion as well as to different types of controllers applied in the main loop of control and emergency subsystem. The results of experimental studies are reported as well. The experiments were performed using custom-built testing setup, which represents a kinematic model of a crane.

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Arsent'ev, Oleg, and Aleksandr Bubnov. "POWER SUPPLY OF SHOP WITH THE HOISTING-AND-TRANSPORT EQUIPMENT." Modern Technologies and Scientific and Technological Progress 2018, no. 1 (March 23, 2020): 123–24. http://dx.doi.org/10.36629/2686-9896-2020-2018-1-123-124.

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the features of power supply of hoisting-and-transport equipment are considered, ways of supply of the electric power for mobile electroinstallation are defined, the variant of modernization of the crane electric drive with application of the frequency converter is offered.

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Safouhi, H., M. Mouattamid, U. Hermann, and A. Hendi. "An algorithm for the calculation of feasible mobile crane position areas." Automation in Construction 20, no. 4 (July 2011): 360–67. http://dx.doi.org/10.1016/j.autcon.2010.11.006.

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Huang, Jiung-Yao, and Chung-Yun Gau. "Modelling and designing a low-cost high-fidelity mobile crane simulator." International Journal of Human-Computer Studies 58, no. 2 (February 2003): 151–76. http://dx.doi.org/10.1016/s1071-5819(02)00129-5.

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Lei, Zhen, SangHyeok Han, Ahmed Bouferguène, Hosein Taghaddos, Ulrich Hermann, and Mohamed Al-Hussein. "Algorithm for Mobile Crane Walking Path Planning in Congested Industrial Plants." Journal of Construction Engineering and Management 141, no. 2 (February 2015): 05014016. http://dx.doi.org/10.1061/(asce)co.1943-7862.0000929.

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Al-Hussein, M., S. Alkass, and O. Moselhi. "An algorithm for mobile crane selection and location on construction sites." Construction Innovation 1, no. 2 (June 1, 2001): 91–105. http://dx.doi.org/10.1191/147141701701571643.

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