Relevant bibliographies by topics / Hydraulic modul

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Academic literature on the topic 'Hydraulic modul'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Hydraulic modul"

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Wibowo, Mardi. "Pemodelan Sebaran Pencemaran Tumpahan Minyak di Perairan Cilacap." Jurnal Teknologi Lingkungan 19, no. 2 (July 31, 2018): 191. http://dx.doi.org/10.29122/jtl.v19i2.2812.

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ABSTRACTThe Cilacap coastal area plays an important role in recreation, transportation, energy, education or research, residential, and industry. It is also potential for development and potential for pollution especially for oil pollution. That is caused Cilacap has the refinary oil plant and the great port of oil, furthermore it has crowded traffic of ship (both big ship or fishing ships). All of which have a tremendous potential pollute the sea and the surrounding areas. Therefore, it’s needed study of oil slick spreading that caused oil spill to formulate early warning and protection action plan for Cilacap coastal area. This study use oil spill model from DHI (Danish Hydraulic Institute) and use software MIKE-21 modul Particle/Spill Analysis. At each scenario, direction and concentration of oil spill is highly varied, its depend on the hydrodynamic condition o sea water. In January the oil spill from the 70 area pier tends to spread upstream S, Donan and around P. Nusakambangan with slick thickness between 0.0001-2.1 mm and oil spill from SPM spread out south of the model domain. In September the oil spill in the 70 area dock spreads upstream of S Donan with slick thickness between 0.001-2.7 mm and oil spills in SPM spread evenly throughout Cilacap waters with slick thickness between 0.001 to 1 mm. The result of this study is very important to plan early warning system and reduce environmental impact of oil spill. Based on comparation tide model data to tide data from field measuring, its known that both of data has no significance differences.Keywords: oil spill spreading, computational modeling, hydrodynamicsABSTRAKKawasan pesisir Cilacap memiliki potensi pengembangan wilayah yang sangat besar. Namun demikian, kawasan ini juga mempunyai ancaman terhadap pencemaran tumpahan minyak, terutama disebabkan oleh aktivitas kapal, kebocoran pipa, single point mooring (SPM), dan kapal nelayan yang dapat merusak ekosistem perairan Cilacap dan sekitarnya. Karena itu, kajian persebaran minyak diperlukan untuk menyusun tindakan peringatan dini dan perlindungan kawasan pesisir Cilacap. Dalam kajian ini dilakukan pemodelan penyebaran minyak dengan menggunakan model tumpahan minyak dari DHI (Danish Hydraulic Institute) dan perangkat lunak MIKE-21 modul Particle/Spill Analysis. Berbagai parameter inputan data diperoleh dari data sekunder dan hasil survei lapangan pada 8-14 Januari dan 10 16 September 2012. Terdapat empat model skenario penyebaran disusun dan hasil akhir divalidasi dengan hasil pengukuran. Sebagai hasil, arah persebaran dan konsentrasi tumpahan minyak untuk tiap skenario sangat bervariasi dari waktu ke waktu tergantung pada kondisi hidrodinamika perairan yang ada. Pada bulan Januari tumpahan minyak dari dermaga area 70 cenderung menyebar ke hulu S. Donan dan di sekitar P. Nusakambangan dengan ketebalan slick antara 0,0001-2,1 mm dan tumpahan minyak dari SPM tersebar ke selatan keluar ari domain model. Pada bulan September tumpahan minyak di dermaga area 70 tersebar ka arah hulu S Donan dengan ketebalan slick antara 0,001-2,7 mm dan tumpahan minyak di SPM tersebar merata ke seluruh wialayah perairan Cilacap dengan ketebalan slick antara 0,001- 1 mm. Hasil kajian ini sangat penting sebagai dasar perencanaan upaya peringatan dini tumpahan minyak dan meminimalisasi dampak tumpahan minyak. Validasi data pasang surut hasil pemodelan dan pengukuran lapangan dari Intergovernmental Oceanographic Commission (IOC) menunjukkan tidak adanya perbedaan yang nyata.Kata kunci: persebaran tumpahan minyak, pemodelan komputasi, hidrodinamika
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Christoffersen, Bradley O., Manuel Gloor, Sophie Fauset, Nikolaos M. Fyllas, David R. Galbraith, Timothy R. Baker, Bart Kruijt, et al. "Linking hydraulic traits to tropical forest function in a size-structured and trait-driven model (TFS v.1-Hydro)." Geoscientific Model Development 9, no. 11 (November 24, 2016): 4227–55. http://dx.doi.org/10.5194/gmd-9-4227-2016.

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Abstract. Forest ecosystem models based on heuristic water stress functions poorly predict tropical forest response to drought partly because they do not capture the diversity of hydraulic traits (including variation in tree size) observed in tropical forests. We developed a continuous porous media approach to modeling plant hydraulics in which all parameters of the constitutive equations are biologically interpretable and measurable plant hydraulic traits (e.g., turgor loss point πtlp, bulk elastic modulus ε, hydraulic capacitance Cft, xylem hydraulic conductivity ks,max, water potential at 50 % loss of conductivity for both xylem (P50,x) and stomata (P50,gs), and the leaf : sapwood area ratio Al : As). We embedded this plant hydraulics model within a trait forest simulator (TFS) that models light environments of individual trees and their upper boundary conditions (transpiration), as well as providing a means for parameterizing variation in hydraulic traits among individuals. We synthesized literature and existing databases to parameterize all hydraulic traits as a function of stem and leaf traits, including wood density (WD), leaf mass per area (LMA), and photosynthetic capacity (Amax), and evaluated the coupled model (called TFS v.1-Hydro) predictions, against observed diurnal and seasonal variability in stem and leaf water potential as well as stand-scaled sap flux. Our hydraulic trait synthesis revealed coordination among leaf and xylem hydraulic traits and statistically significant relationships of most hydraulic traits with more easily measured plant traits. Using the most informative empirical trait–trait relationships derived from this synthesis, TFS v.1-Hydro successfully captured individual variation in leaf and stem water potential due to increasing tree size and light environment, with model representation of hydraulic architecture and plant traits exerting primary and secondary controls, respectively, on the fidelity of model predictions. The plant hydraulics model made substantial improvements to simulations of total ecosystem transpiration. Remaining uncertainties and limitations of the trait paradigm for plant hydraulics modeling are highlighted.
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Yan, Bing Bing, Wen Bo Ren, Bao Lin Yin, and Yang Li. "Hydraulic System Simulation of 3-UPS Parallel Mechanism Based on ADAMS/Hydraulics." Key Engineering Materials 579-580 (September 2013): 430–33. http://dx.doi.org/10.4028/www.scientific.net/kem.579-580.430.

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In order to guaranty the work stability of the move-in-mud robot and movement relationship of wriggle turning joint, to use the 3-UPS parallel mechanism as the steering joint. Make full use of the characteristics flexibility, heavy force loading and small workspace of the parallel mechanism. Supporting link of the parallel mechanism driven by hydraulic cylinders, so a completely hydraulic system is an important factor to ensure the stationary work of parallel mechanism, provide the required power to go forward and ensure the forward speed of the move-in-mud robot. Establish the virtual prototype model of mechanical-hydraulic coupling system by using of Pro/E and ADAMS/Hydraulics software, do the dynamic simulation analysis of hydraulic control system based on Hydraulics module, the simulation process can be made more visual and vivid by three-dimensional visualization. Obtain the platform speed and hydraulic cylinder pressure curve after simulation, compare simulation results with theoretical calculations, and verify that the design is reasonable. The results show that it lays the foundation for the further optimization and research of the move-in-mud robot.
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Javaux, Mathieu, and Andrea Carminati. "Soil hydraulics affect the degree of isohydricity." Plant Physiology 186, no. 3 (March 31, 2021): 1378–81. http://dx.doi.org/10.1093/plphys/kiab154.

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A soil–plant hydraulic model shows that the degree of isohydricity is constrained by below-ground hydraulic limitations and that the shape of plant water potential (WP) curve depends on soil hydraulics.
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Sembiring, Tagor Malem, Surian Pinem, and Peng Hong Liem. "VALIDATION OF FULL CORE GEOMETRY MODEL OF THE NODAL3 CODE IN THE PWR TRANSIENT BENCHMARK PROBLEMS." JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA 17, no. 3 (October 4, 2015): 141. http://dx.doi.org/10.17146/tdm.2015.17.3.2322.

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ABSTRACT VALIDATION OF FULL CORE GEOMETRY MODEL OF THE NODAL3 CODE IN THE PWR TRANSIENT BENCHMARK PROBLEMS. The coupled neutronic and thermal-hydraulic (T/H) code, NODAL3 code, has been validated in some PWR static benchmark and the NEACRP PWR transient benchmark cases. However, the NODAL3 code have not yet validated in the transient benchmark cases of a control rod assembly (CR) ejection at peripheral core using a full core geometry model, the C1 and C2 cases. By this research work, the accuracy of the NODAL3 code for one CR ejection or the unsymmetrical group of CRs ejection case can be validated. The calculations by the NODAL3 code have been carried out by the adiabatic method (AM) and the improved quasistatic method (IQS). All calculated transient parameters by the NODAL3 code were compared with the reference results by the PANTHER code. The maximum relative difference of 16% occurs in the calculated time of power maximum parameter by using the IQS method, while the relative difference of the AM method is 4% for C2 case. All calculation results by the NODAL3 code shows there is no systematic difference, it means the neutronic and T/H modules are adopted in the code are considered correct. Therefore, all calculation results by using the NODAL3 code are very good agreement with the reference results. Keywords: nodal method, coupled neutronic and thermal-hydraulic code, PWR, transient case, control rod ejection. ABSTRAK VALIDASI MODEL GEOMETRI TERAS PENUH PAKET PROGRAM NODAL3 DALAM PROBLEM BENCHMARK GAYUT WAKTU PWR. Paket program kopel neutronik dan termohidraulika (T/H), NODAL3, telah divalidasi dengan beberapa kasus benchmark statis PWR dan kasus benchmark gayut waktu PWR NEACRP. Akan tetapi, paket program NODAL3 belum divalidasi dalam kasus benchmark gayut waktu akibat penarikan sebuah perangkat batang kendali (CR) di tepi teras menggunakan model geometri teras penuh, yaitu kasus C1 dan C2. Dengan penelitian ini, akurasi paket program NODAL3 untuk kasus penarikan sebuah CR atau sekelompok CR yang tidak-simetris dapat divalidasi. Perhitungan paket program NODAL3 dilakukan dengan metode adiabatic (AM) dan improved quasistatic (IQS). Seluruh parameter gayut waktu hasil perhitungan paket program NODAL3 dibandingkan dengan hasil acuan dengan paket program PANTHER. Perbedaan relatif maksimum sebesar 16% terjadi dalam perhitungan parameter waktu daya maksimum dengan metode IQS pada kasus C2, sedangkan perbedaan relatif dengan metode AM adalah 4%. Seluruh hasil perhitungan dengan paket program NODAL3 menunjukkan tidak adanya perbedaan yang sistematis, berarti modul neutronik dan T/H yang diadopsi di NODAL3 sudah benar. Oleh karena itu, seluruh perhitungan dengan paket program NODAL3 sangat sesuai dengan hasil acuan. Kata kunci: metode nodal, paket program kopel neutonik dan termo-hidrolika, kasus gayut-waktu, tertariknya batang kendali.
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Guo, Xiao Le, Zhi Ming Wang, and Zhi Hui Long. "Research Progresses of Hydraulics for Extended Reach Drilling in China, Part III: Hydraulics Design Method and Risk Analysis System." Advanced Materials Research 524-527 (May 2012): 1561–64. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1561.

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The extended reach drilling (ERD) is being adopted widely in China. But it also brought a series of technical difficulties because of its own characteristics. Some progresses were made after several years of hard work in China about Hydraulics for ERD. In the paper of “Research Progresses and Perspectives of Hydraulics for Extended Reach Drilling in China, Part I” and “ Part II”, the author demenstrated part of these progresses including cuttings transport model, precise model of pressure loss calculation, hole cleaning monitoring method and hydraulic extended limit calculation model and analysis. In this paper, the rest were presented which inlcuding hydraulics design method and risk analysis system for ERD. Based on the above studies, the author finally developed a system of hole cleaning monitoring and hydraulics design and its risk analysis which could provide theoretical support and useful tool for engineering design and risk analysis before drilling. These researches are helpful to ERD and have enriched the hydraulic theory of ERD.
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Parekh, Siddharth, Ali Pilehvari, and Robert Serth. "Prediction of Fluid Behavior Using Generalized Hydraulic Calculation Method in Hydraulic Fractures." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 81, no. 1 (March 5, 2021): 120–30. http://dx.doi.org/10.37934/arfmts.81.1.120130.

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Hydraulic fracturing has been used as one of the stimulation techniques to economically increase oil and gas production by creating small cracks in subsurface geologic formations to allow oil or gas to move toward a producing well. Hydraulics plays a vital role in many oil field operations including drilling, completion, fracturing and production. In the case of fracturing, however, the role of hydraulics becomes important since optimized hydraulics can minimize the cost and conversely, any miscalculations may cause problems such as the fluid loss or may potentially even lead to loss of the well. The current methods of the hydraulic calculation for non-Newtonian fluids necessitate determination of the robust model. This paper presented a new method for calculating pressure losses in the hydraulic fractures. The objective of this study was to develop the generalized model for hydraulic calculation for non-Newtonian fluid and run the case studies for the model validation. In the present work, detailed algorithm for the hydraulic calculation has been developed and then programmed in C++. The only input to the program is the raw rheological data, shear stress versus shear rate and the geometrical characteristics of the slit. Model validation with the new method has established a very small percentage difference between the values predicted by the model and experimental data. The results demonstrate that the new method is accurately predicting the pressure drop in both laminar and turbulent flow regimes. It is shown that the fluid behavior is more accurately represented using the new method than that with the standard fluid models available in the petroleum industry. Further validation and development to be carried out using experimental data for variety of fluid types.
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Taghavi, Mehdi, and Hesam Ghodousi. "Simulation of Flow Suspended Load in Weirs by Using Flow3D Model." Civil Engineering Journal 1, no. 1 (November 1, 2015): 37–49. http://dx.doi.org/10.28991/cej-2015-00000004.

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Sharp-crested weir and side-channel weirs can be considered among the control and flow-measuring structures which are greatly applicable in channels, dam spillways and other hydraulic structures. Discharge coefficient in these two types of weirs is affected by the structural geometry and the hydraulics of the flow. Suspended load is one of the main factors which may affect the hydraulics of the flow and consequently modify the flow discharge coefficient. Using different geometrical and hydraulic conditions, the discharge coefficient relation in sharp-crested and side channel weirs for the case of suspended load can be extracted. Flow3D numerical model is capable of precisely simulation the flow containing suspended and bed load in the main channel. The discharge coefficient equation is deduced and presented based on the Froude number, by numerical iterations. The numerical results reveal that the discharge coefficient in the two cases of clear water and the flow containing suspended load are totally different. At the same hydraulic load, the discharge coefficient in the case of existing suspended load is greater than the case of clear water; In addition, the discharge coefficient is reduced by increasing the Froude number in all cases with different load concentrations.
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Guo, Xiao Le, Zhi Ming Wang, and Zhi Hui Long. "Hydraulics Analysis System for Extended Reach Drilling in China and its Application." Applied Mechanics and Materials 241-244 (December 2012): 1349–53. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.1349.

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The extended reach drilling (ERD) is being adopted widely as an effective and economical way of developing oilfields in China. But it also brought a series of technical difficulties because of its own characteristics. Some progresses were made after several years of hard work in China about Hydraulics for extended reach drilling, which included cuttings transport models and rules, precise model of circulating system pressure loss calculation, hole cleaning calculating models and monitoring method, hydraulic extended limit calculation model and analysis, hydraulics design and optimization method for ERD. Based on the above studies, the author finally developed a system of hole cleaning monitoring and hydraulics design and its risk analysis which could provide theoretical support and useful tool for engineering design and risk assess before drilling. These researches are helpful to ERD and have enriched the hydraulic theory of ERD.
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Zhong, Xiang Qiang, and Li Dong Liang. "Mechanical-Hydraulic Coupling Simulation for Hydraulic Excavator Working Mechanism." Advanced Materials Research 538-541 (June 2012): 494–97. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.494.

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Hydraulic excavator is a typical and complicated engineering machine by combination of mechanical, control and hydraulic system. It is very important for coupling analysis by use of multiple simulation tools. Hydraulic excavator mechanical model was constructed based on Pro/E 4.0. Virtual prototype of hydraulic excavator was finished by use of ADAMS interface function and carried on a lot of kinematics and dynamics simulation analysis. Hydraulic cylinder circuit was derivated based on ADAMS/Hydraulics. Working principle of bucket arm hydraulic cylinder was analyzed. Mechanical and hydraulic simulation of bucket rod hydraulic cylinder was finished. Bucket rod hydraulic cylinder velocity was obtained. Simulation results show coupling simulations have certain theory value and practical significance. They can provide evidence for trial and optimization of physical prototype.
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Dissertations / Theses on the topic "Hydraulic modul"

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Opravil, Tomáš. "Příprava a vlastnosti románského cementu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-233293.

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The Ph.D. thesis deals with the preparation of highly hydraulic binders based on roman cement. Roman cement (natural cement) is recently not available on the market due to uneconomic production of such a specific binder. On the other hand there is a big lack of information on this hydraulic binder. These results in failure in meeting the basic principle of modern approaches to restoration of historical buildings or monuments made of such kind of materials, which is such, that the materials used for restoration should be compatible with original material. Recognition of the processes of roman cement preparation based on progressive methods of study can provide substantial information for more efficient raw material selection or even for nontraditional utilization, for example for artworks. This work hence is aimed at studying and selection of traditional natural as well as nontraditional raw materials such as clay. This work also studies the preparation of highly hydraulic binders based on roman cement and the kinetics of burning and hydration processes
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Tranová, Kateřina. "Hydraulická analýza vodovodní sítě městské části Brno - Ivanovice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265396.

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This diploma´s thesis aims to model the hydraulic model of the Brno – Ivanovice water supply system. The software MIKE URBAN for model hydraulic model of water supply system was used. It was performed a simulation of the various states of loading. The water supply system was assessment of pressure ratios. The outcome of this work is calibrated hydraulic model of water supply system. The appendix consists also of drawings, which represented pressure ratios, which are situated on water supply system. On the fourth drawing is described transparent situation of Brno-Ivanovice water supply system.
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Forsberg, Johan. "Model-based study of the energy efficiency of two different types of harvester cranes." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156712.

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In today’s forest industry two mechanized methods are used, the Tree Length (TL) method and the Cut To Length (CTL) method. With the Tree Length method, trees are harvested and extracted from the forest as a whole tree to be further processed whereas with the Cut To Length method trees are harvested, branches are removed and the tree is cut to desired length to be extracted by a forwarder. The Cut To Length method is now a day 100 percent mechanized and more and more emphasis is put on efficiency in both harvesting and forwarding the trees. Efficiency can be measured in trees harvested per hour but also in fuel consumption. As an effect, the performance of the machines is in higher demand. Ponsse Plc is a finnish forestry machine company with production in Vieremä where both harvesters and forwarders are manufactured. Cranes and loaders are also made by Ponsse to match their harvesters and forwarders. Ponsse manufactures two designs of harvester cranes; a sliding boom crane and a parallel crane. The different types of cranes have the same reach but with different geometries and weights, which also leads to different momentum of inertia. The purpose of this master thesis is to investigate, from an energy efficiency point of view, the difference in performance between a sliding boom crane, C2, and a parallel crane, C22 by measuring the hydraulic pump’s flow and the rotational energy of the cranes. This has been done by modelling the cranes’ hydraulic circuits and by using 3D-CAD models with mass and inertias in Simulink. More specific, only the crane tips of the cranes have moved along a set trajectory, equal for both crane types. Different range and loads have been simulated. The energy needed for rotating the cranes have been calculated for different crane tip positions and compared. Simulink simulations gave beneficial results for the parallel crane when unloaded and acting at a shorter reach. For longer reach, the sliding boom crane was more efficient. The calculations of the cranes rotational energies showed that the parallel crane C22 yielded higher values than the C2 at shorter distance from the axis of revolution. The C2 crane had however slightly higher values than the C22 crane at longer reach, but it should be noted that differences were small. From this analysis, it is concluded that the C2 crane has an overall lower need of rotational energy and is therefore deemed the better crane. Keywords: Forest machines, hydraulics, efficiency
I världen idag existerar två mekaniserade skördartekniker inom skogsavverkningen, helträdsavverkning och kortvirkesavverkningen. Den första innebär att hela träd skördas och skotas ut till en uppläggningsplats medan man inom korttimmeravverkningen istället fäller träden med en skördare som sedan kvistar och till sist kapar trädet till önskad längd. Denna avverkning är numera 100 procent mekaniserad och effektivare avverkning är ständigt i blickfånget. Effektivare avverkning kan yttra sig i antalet fällda träd per timme men också i bränslekostnader. Dessa krav ställer i slutändan krav på skördarna och skotarnas prestanda. Ponsse Oyj är ett finskt skogsmaskinsföretag med fabrik i Vieremä som tillverkar både skördare och skotare. Till dessa maskiner tillverkar man även egna kranar. För skördare har man två olika designer, dels en bomkran och dels en parallellkran. Dessa båda krantyper har lika räckvidd men olika geometrier och vikt, vilket också innebär att masströgheterna skiljer dem åt. Syftet med detta examensarbete har varit att undersöka en av vardera krantypen, C2 från bomkrantypen och C22 från parallelltypen ur ett energieffektivitetshänseende. Detta har gjorts genom att mäta hydraulpumpflödet och kranarnas rotationsenergi. Mer specifikt har båda kranarna modellerats i Simulink med hydraulik och mekanik för att avgöra vilken av kranarna som är effektivast när kranspetsen har flyttats i en rörelse lika för båda kranarna. Kranspetsrörelsen simulerades med olika laster och för olika rörelser. Denna rörelse har varit i planet och för att jämföra kranarna vid vridning har kranspetsen placerats i olika positioner och masströgheten beräknats för vridning kring rotationsaxeln. För given rotationshastighet beräknades sedan vederbörande rotationsenergi för de olika positionerna. Simuleringarna resulterade i en fördel för parallellkranen vid korta sträckor och obelastad kran. För längre räckvid visade istället bomkranen bättre effektvärden. För rotation av kranarna kring dess rotationsaxel med kranspetsen i olika positioner visar parallellkranen C22 högre energivärden än bomkranen när kranspetsen är placerad fem meter från rotationsaxeln men för positioner längre ut, vid 9,9 respektive 10 meter påvisar C2 kranen kräva högre energi, om än i nivå med parallellkranen. Energieffektivast ur rotationshänseende är således bomkranen då den överlag behöver lägre energi eller i nivå med den andra. Nyckelord: Skogsmaskiner, hydraulik, effektivitet
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Howe, Edmund. "Hydraulic Assessment of Notched River Training Structures on a Portion of the Lower Mississippi River Using the Adaptive Hydraulics Model." Thesis, Mississippi State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10275634.

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River training structures are widely used to create and maintain navigable waterways, to restore rivers and channels in a more stable condition, to promote environmental benefits, and to protect people and infrastructure from damages or floods. Few historical datasets on the changes and impacts in secondary waterbodies resulting from notched river training structures are available for the Lower Mississippi River. Access to the notched training structures on the Lower Mississippi River remains difficult and inhibits data collection for monitoring efforts. This increases the need for alternative methods such as numerical models for assessing the performance of the notched training structures. A quasi-three-dimensional Adaptive Hydraulics model was assembled and used to provide a hydraulic assessment of seven notched river training structures in the Lower Mississippi River. The hydraulic assessment of the notches included assessing the impacts to navigation, the long-term trends, and the potential for aquatic wildlife habitat diversity.

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Holma, Evert. "Designkoncept för standard hydraulik modul." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-125093.

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Detta examensarbete har genomförts på Outotec i Skellefteå, det är ett finskt företag som levererar process- och automationslösningar för metall-, mineral-, energi- och vattenindustrin.   Hydraulik ingår i många av Outotecs maskiner och processlösningar och där har ett önskemål funnits om att ha en mindre hydraulmodul för att driva enklare funktioner som använder sig av cylindrar.   Detta examensarbete har gått ut på att ta fram ett designkoncept för en mindre hydraulmodul för att driva cylindrar som används för att köra enklare funktioner i en smältverksanläggning. Arbetet omfattar ett framtagande av ett hydraulschema för modulen där nödvändiga komponenter skall ingå, ett beräkningsunderlag för att kunna välja komponenter till modulen. Samt ett förslag på vilka större och viktiga komponenter som kan användas för systemet och ett designförslag på hur modulen kan komma att se ut vid ett färdigställande.   Som ett resultat av detta har ett beslutsunderlag tagits fram för att kunna färdigställa modulen, beslutsunderlaget baseras på beräkningar som är gjorda på de olika cylindrarna samt komponenter som kommer att behövas i modulen.   Ett antal av komponenterna är valda och kan ses som en riktlinje för ett slutgiltigt beslut, så det är möjligt att välja en liknande produkt av ett annat fabrikat eller andra dimensioner. Resultatet innehåller även ett hydraulschema som beskriver funktionen för modulen och vilka komponenter som bör ingå då modulen är färdig. Ett förslag på konstruktion och layout är framtaget för modulen, denna innehåller dock inte alla komponenter men de största komponenterna finns med som tank, motor och ackumulator.
This thesis has been conducted at Outotec in Skellefteå, Outotec is a Finnish company that supplies process and automation solutions for metal, mineral, energy and water industries.   Hydraulics are included in many of Outotec's equipment’s and process solutions and because of this they have come to the idea of having a smaller hydraulic module for operating simple functions that use hydraulic cylinders. This thesis has been to develop a design concept for this small hydraulic module to operate the cylinders that are used to run simple functions in a metal melting plant.   The work includes the development of a hydraulic diagram for the module where the necessary components are included, the calculation basis for selecting components to the module, a proposal on which significant and important components that can be used for the system and a design proposal on how the module might look at a completion.   As a result of this, a decision basis was developed in order to complete the module. The decision data are based on calculations made on the components that will be needed in the module and the various functions that the module is supposed to run.   The bigger components are selected and can be seen as a guideline for a final decision, so it is possible to choose a similar product but with other dimensions or products from another manufacturer. The result also includes a hydraulic diagram describing the function of the module and which components that should be included when the module is completed. A draft of the design and layout is designed for the module, this does not contain all the components, but the main components are included such as the tank, motor and accumulator.
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Pospíšil, Radek. "Tlumení energie proudu vodním skokem v prostoru rozšíření koryta." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409720.

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The diploma thesis is focused on the evaluation of the suppression of supercritical current energy in the area of the river bed extension. The hydraulic model was used to simulate current conditions for different variants of river bed arrangement. Individual variants were then evaluated according to the relevant criteria and compared with each other. Results can be applied in hydrotechnical practice based on model similarity.
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Petrula, Lubomír. "Hodnocení kontaminace podzemních vod v oblasti Letiště Přerov." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265335.

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The main goal of this work is to assess ground water contamination at the Přerov airport as a consequence to oil products leakage. For this purpose a flow and transport model was created. Another goal is to create and assess several variations of unfavorable scenarios in terms of water quality. The final goal is to create a set of recommendations for the entire area.
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Yang, Bo. "Elastohydrodynamic model of reciprocating hydraulic rod seals." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34747.

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Reciprocating rod seals are widely used in hydraulic systems to prevent the hydraulic fluid from leaking into and polluting the environment. In this research an elastohydrodynamic model of a generalized reciprocating hydraulic rod seal, including mixed lubrication and surface roughness, has been successfully developed. This model consists of coupled fluid mechanics, contact mechanics, thermal analysis and deformation analyses. Such model is capable of predicting the key seal performance characteristics, especially net leakage and friction force. This allows evaluation of potential seal designs and serves as design tools. Also as this model has been developed, the basic physics of seal operation has been clarified, which stimulates the development of innovative seal concepts, such as seals with engineered sealing surfaces. The results of this study indicate that in general, hydraulic rod seals operate in the mixed lubrication regime, although under certain conditions full film lubrication may occur over a portion of the sealing zone. The roughness of the seal surface and the rod speeds play important roles in determining whether or not a seal will leak. Cavitation during the outstroke and partial full film lubrication during the instroke tend to prevent net leakage. The behavior of a reciprocating hydraulic rod seal with a double lip or two seals in tandem arrangement can be very different from that of a similar seal with a single lip. For the double lip seal, the secondary lip can strongly affect the behavior of the primary lip by producing an elevated pressure in the interlip region. The same seal characteristics that promote effective sealing in a single lip seal and, in addition structural decoupling of multiple lips, are found to promote effective sealing in a multiple lip seal. The model is validated through comparisons of model predictions with experimental measurements and observations by industry partners. The results have shown the predicted leakage and friction force for various seal and operation conditions are consistent with the measurements. A seal with micro-pattern on the sealing surface also has been investigated. The results indicate that an elaborately designed pattern can improve the sealing characteristics of the seal, without significantly affecting the friction force. In the end, the selection of the rod seal for a specific application using this analytical model is demonstrated. The best design can be picked up before a prototype being built.
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Van, Der Merwe Carel Wagener. "A peridynamic model for sleeved hydraulic fracture." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95993.

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Thesis (MEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: Current numerical methods in the eld of hydraulic fracturing are based mainly on continuum methods, such as the Finite Element Method (FEM) and the Boundary Element Method (BEM). These methods are governed by Linear Elastic Fracture Mechanics (LEFM) criteria, which su er from the inherent aw of a non-physical stress representation at the fracture tip. In response to this, a non-local method is proposed, namely the peridynamic theory, to model sleeved hydraulic fracture. A 2D implicit quasi-static ordinary state based peridynamic formulation is implemented on various benchmark problems, to verify the ability to capture constitutive behaviour in a linear elastic solid, as well as, the quanti cation of adverse e ects on the accuracy of the displacement solution, due to the nature of the non-local theory. Benchmark tests consist of a plate in tension, where convergence to the classical displacement solution, non-uniform re nement and varying cell sizes are tested, as well as, a thick walled cylinder with internal pressure, where three di erent loading techniques are tested. The most accurate loading technique is applied to the sleeved fracture model, in order to simulate fracture initiation and propagation. This model is then veri ed and validated by using the Rummel & Winter hydraulic fracturing model and experimental results, respectively. Displacement error minimisation methods are implemented and as a result, the displacement solutions for a plate in tension converges to the analytical solution, while the thick walled cylinder solutions su er from inaccuracies due to an applied load on an irregularly discretized region. The fracture initiation test captures the fracture tip behaviour of the Rummel & Winter model and the fracture propagation test show good correlation with experimental results. This research shows that the peridynamic approach to sleeved hydraulic fracture can yield a realistic representation of fracture initiation and propagation, however, further research is needed in the area of a pressure load application on a solid using the peridynamic approach.
AFRIKAANSE OPSOMMING: Huidige numeriese metodes in die veld van hidrouliese breking is hoofsaaklik gebaseer op kontinuum metodes, soos die Eindige Element Metode (EEM) en die Rand Element Metode (REM). Hierdie metodes word beheer deur Linie^ere Elastiese Breukmeganika (LEB) kriteria, wat ly aan die inherente gebrek van 'n nie- siese voorstelling van die spanning by die fraktuur punt. Om hierdie probleme aan te spreek, word 'n nie-lokale metode voorgestel, naamlik die peridinamiese teorie, om gehulsde hidrouliese breking te modelleer. 'n 2D implisiete kwasi-statiese ordin^ere toestand gebaseerde peridinamika formulering word ge mplimenteer op verskeie norm probleme, om te veri eer of dit oor die vermo e beskik om die konstitutiewe gedrag van 'n linie^ere elastiese soliede materiaal te modeleer, asook die kwanti sering van nadelige e ekte op die verplasings oplossing as gevolg van die natuur van die nie-lokale teorie. Normtoetse bestaan uit 'n plaat in trek spanning, waar konvergensie na die klassieke verplasings oplossing, nie-uniforme verfyning en vari^eerende sel groottes getoets word, asook 'n dikwandige silinder onder interne druk, waar drie verskillende belasting aanwendingstegnieke getoets word. Die mees akkurate belasting aanwendingstegniek word dan gebruik in die gehulsde hidrouliese breking model, om fraktuur aanvangs en uitbreiding na te boots. Die model word dan geveri- eer deur die Rummel & Winter hidrouliese breking model en eksperimentele resultate, onderskeidelik. Fout minimering metodes word toegepas en as 'n resultaat, konvergeer die verplasing oplossing vir die plaat na die analitiese oplossing, terwyl die oplossing van die dikwandige silinder onakuraathede toon as gevolg van 'n toegepaste belasting op 'n onre elmatig gediskretiseerde gebied. Die modellering van die fraktuur inisi ering by die fraktuur punt, stem goed ooreen met die Rummel en Winter voorspelling en die fraktuur uitbreiding stem goed ooreen met eksperimentele resultate. Hierdie navorsing toon dat die peridinamiese benadering tot gehulsde hidrouliese breking wel die fraktuur inisi ering en uitbreiding realisties kan modelleer, maar nog navorsing word wel benodig in die area waar 'n druk belasting op 'n peridinamiese soliede model toegepas word.
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Wahler, Matthias, and Thomas Sendelbach. "Model based engineering for electro-hydraulic solutions." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71232.

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This paper will give an overview about the technological change in Industrial Hydraulics and the impact of the Digital Twin on the related new engineering processes and methods in order to overcome the challenges coming out of that technology change. Simulation models will more and more become a decisive factor for the engineering process. The Digital Twin will be a window of opportunity for innovations and a technology push for the engineering process and the products in the Industrial Hydraulics.
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Books on the topic "Hydraulic modul"

1

Maynord, Stephen T. General spillway investigation: Hydraulic model investigation. Washington, DC: Dept. of the Army, US Army Corps of Engineers, 1985.

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Brahme, Shashikant B. Hydraulic model studies for suction cutterheads. College Station, Tex: Sea Grant College Program, Texas A & M University, 1987.

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Maynord, Stephen T. General spillway investigation: Hydraulic model investigation. Wasington, DC: Dept. of the Army, US Army Corps of Engineers, 1985.

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Benson, Howard A. Mississippi River passes physical model study.: Hydraulic model investigation. Vicksburg, Miss: Dept. of the Army, Waterways Experiment Station, Corps of Engineers, 1986.

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Granat, Mitchell A. Reverification of the Chesapeake Bay model: Chesapeake Bay hydraulic model investigation. Vicksburg, Miss: Dept. of the Army, Waterways Experiment Station, Corps of Engineers, 1985.

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Pugh, C. A. Hydraulic model studies of fuse plug embankments. Denver, Colo: Hydraulics Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, 1985.

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Cooper, Deborah R. Lift gate for Lockport Lock, Illinois Waterway: Hydraulic model investigation. Vicksburg, Miss: US Army Corps of Engineers, Hydraulics Laboratory, 1987.

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Dodge, R. A. Model study of Roosevelt Diversion Weir. Denver, Colo: Hydraulics Branch, Resesarch and Laboratory Services Division, Denver Office, U.S. Dept. of Interior, Bureau of Reclamation, 1989.

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Kunsemiller, John P. Seawater hydraulic rock drill impact mechanism model validation. Port Hueneme, CA: Naval Facilities Engineering Service Center, 1995.

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Ali, Mansoor. Analytical thermal hydraulic model for steam chugging phenomenon. Mumbai: Bhabha Atomic Research Centre, 2005.

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Book chapters on the topic "Hydraulic modul"

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Vreugdenhil, Cornelis B. "Numerical Solution for Box Model." In Computational Hydraulics, 10–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-95578-5_3.

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Vreugdenhil, Cornelis B. "Diffusion Model for Coastline Development." In Computational Hydraulics, 47–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-95578-5_9.

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Lebbe, Luc C. "Further developments of pumping test model." In Hydraulic Parameter Identification, 175–228. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60117-0_5.

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Wu, Yulin, Shengcai Li, Shuhong Liu, Hua-Shu Dou, and Zhongdong Qian. "Numerical Model of Dynamics." In Vibration of Hydraulic Machinery, 53–79. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6422-4_3.

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Lebbe, Luc C. "Inverse model as tool for pumping test interpretation." In Hydraulic Parameter Identification, 229–301. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60117-0_6.

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Dunaj, Paweł, Beata Niesterowicz, and Bartłomiej Szymczak. "Loader Crane Modal Analysis Using Simplified Hydraulic Actuator Model." In Lecture Notes in Mechanical Engineering, 70–80. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16943-5_7.

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Lebbe, Luc C. "Numerical model of pumping tests in a layered groundwater reservoir." In Hydraulic Parameter Identification, 117–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60117-0_4.

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Vidal, Jean-Philippe, Sabine Moisan, and Jean-Baptiste Faure. "Knowledge-Based Hydraulic Model Calibration." In Lecture Notes in Computer Science, 676–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45224-9_92.

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Kercan, Vladimir, Marin Bajd, Vesko Djelić, Andrej Lipej, and Dragica Jošt. "Model and Prototype Draft Tube Pressure Pulsations." In Hydraulic Machinery and Cavitation, 994–1003. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-010-9385-9_101.

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Deniau, Jean-Loup. "Study of Stayvane Vibration by Hydroelastic Model." In Hydraulic Machinery and Cavitation, 484–93. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-010-9385-9_49.

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Conference papers on the topic "Hydraulic modul"

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Fan, Honghai, Haobo Zhou, Guo Wang, Qi Peng, and Yiqing Wang. "Utility Hydraulic Calculation Model of Herschel-Bulkley Rheological Model for MPD Hydraulics." In SPE Asia Pacific Oil & Gas Conference and Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/171443-ms.

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Hsu, Yun, Xinglai Dang, Warren Chilton, Philemon Chang, Igor Stelin, Deepak Gusain, Neill Northington, and Hans J. De Pater. "New Physics-Based 3D Hydraulic Fracture Model." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/152525-ms.

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Shah, Koras, Robert Frank Shelley, Deepak Gusain, Lyle V. Lehman, Amir Mohammadnejad, and Matthew T. Conway. "Development of the Brittle Shale Fracture Network Model." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/163829-ms.

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Alekseenko, Olga. "Semiphenomenological Model of Hydraulic Fracturing in Granular Media." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2007. http://dx.doi.org/10.2118/105657-ms.

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Yan, Jun, Xiaoyan Liu, Qiushi Yu, and Huangzhi Xu. "Research on Model Based PHEV Hydraulic Module Design." In SAE/KSAE 2013 International Powertrains, Fuels & Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2013. http://dx.doi.org/10.4271/2013-01-2488.

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Maxwell, Shawn C., Ulrich Zimmer, and James E. Wolfe. "Seismic Velocity Model Calibration Using Dual Monitoring Well Data." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2009. http://dx.doi.org/10.2118/119596-ms.

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Gdanski, Rick David, Jim Dean Weaver, and Billy F. Slabaugh. "A New Model for Matching Fracturing Fluid Flowback Composition." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2007. http://dx.doi.org/10.2118/106040-ms.

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Liu, Guoqing, Christine Ehlig-Economides, and Jianlei Sun. "Comprehensive Global Fracture Calibration Model." In SPE Asia Pacific Hydraulic Fracturing Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/181856-ms.

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Wu, Yu-Shu, George J. Moridis, Baojun Bai, and Keni Zhang. "A Multi-Continuum Model for Gas Production in Tight Fractured Reservoirs." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2009. http://dx.doi.org/10.2118/118944-ms.

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Zolfaghari Sharak, Ashkan, Ebrahim Ghanbari, Hassan Dehghanpour, and Doug Bearinger. "Fracture Architecture from Flowback Signature: A Model for Salt Concentration Transient." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/168598-ms.

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Reports on the topic "Hydraulic modul"

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Sharp, Jeremy, Locke Williams, Duncan Bryant, Jake Allgeier, Kevin Pigg, Gary Bell, and Dana Moses. Rough River Outlet Works physical model study. Engineer Research and Development Center (U.S.), June 2021. http://dx.doi.org/10.21079/11681/41043.

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The US Army Corps of Engineers, Louisville District, requested the support and assistance of the US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory (CHL), in the evaluation of the hydraulic performance of the replacement Outlet Works for Rough River Dam. To support the design effort, CHL constructed a 1:25.85 scale physical model. The proposed features of the model in the domain are the curved approach channel, intake structure, transition, curved conduit, stilling basin, concrete apron, and retreat channel. Tests performed to evaluate the hydraulic performance illuminated a few design concerns. To address these issues, several key design changes were made. These included the retreat channel slope, end sill design, and transition design.
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May, David, David Biedenharn, Tate McAlpin, and Ty Wamsley. Hydraulic dike effects investigation on the Mississippi River : Natchez to Baton Rouge. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40539.

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This report documents an investigation of the hydraulic effects of dikes on water levels in the Mississippi River between Natchez, MS, and Baton Rouge, LA, conducted for the U.S. Army Corps of Engineers, Mississippi Valley Division, Vicksburg, MS. The investigation was conducted using a previously calibrated Natchez-to-Baton Rouge Adaptive Hydraulics numerical model. The objectives were to alter roughness and height variables associated with the dikes and overbanks encompassed in the numerical model and evaluate their effects on water surface elevations. This academic exercise provides an indication of the relative level of impact associated with modifications to the dikes and overbanks for this portion of the Mississippi River and does not represent future plans or recommendations by the U.S. Army Corps of Engineers. Steady flow simulations were simulated for 12 May 2011 to investigate the variation in model results during the peak of the 2011 flood on the Mississippi River.
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Fletcher, Bobby P. Baldhill Spillway. Hydraulic Model Investigation. Fort Belvoir, VA: Defense Technical Information Center, July 1993. http://dx.doi.org/10.21236/ada269737.

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Perkins, William A., and Marshall C. Richmond. Technical Review of the UNET2D Hydraulic Model. Office of Scientific and Technical Information (OSTI), May 2009. http://dx.doi.org/10.2172/986733.

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Warpinski, N. R., I. S. Abou-Sayed, Z. Moschovidis, and C. Parker. Hydraulic fracture model comparison study: Complete results. Office of Scientific and Technical Information (OSTI), February 1993. http://dx.doi.org/10.2172/10176839.

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McAlpin, Jennifer, and Jason Lavecchia. Brunswick Harbor numerical model. Engineer Research and Development Center (U.S.), May 2021. http://dx.doi.org/10.21079/11681/40599.

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The Brunswick area consists of many acres of estuarine and marsh environments. The US Army Corps of Engineers District, Savannah, requested that the US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, develop a validated Adaptive Hydraulics model and assist in using it to perform hydrodynamic modeling of proposed navigation channel modifications. The modeling results are necessary to provide data for ship simulation. The model setup and validation are presented here.
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Tate, Jr, and Charles H. Hydraulic Model Investigation: Soil Conservation Service Low Drop Structure Model Study. Fort Belvoir, VA: Defense Technical Information Center, August 1991. http://dx.doi.org/10.21236/ada241213.

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Cooper, Deborah R. Monongahela Dam 4 Spillway, Pennsylvania Hydraulic Model Investigation. Fort Belvoir, VA: Defense Technical Information Center, May 1997. http://dx.doi.org/10.21236/ada327050.

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Smith, Ernest R., and C. R. Herrington. Wave Reflection at Tainter Gates. Hydraulic Model Investigation. Fort Belvoir, VA: Defense Technical Information Center, August 1992. http://dx.doi.org/10.21236/ada255212.

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Heath, Ronald, David May, James Leech, Gaurav Savant, and Phu Luong. Morganza Control Structure forebay : numerical hydraulic model investigation. Engineer Research and Development Center (U.S.), November 2018. http://dx.doi.org/10.21079/11681/30303.

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