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Dissertations / Theses on the topic 'Simulation of bending process'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Zeng, Jun. "Finite element modeling and simulation of roll bending process for forming a thick conical hollow shape." Thèse, Montréal : École de technologie supérieure, 2007. http://proquest.umi.com/pqdweb?did=1472130781&sid=12&Fmt=2&clientId=46962&RQT=309&VName=PQD.

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Thèse (M. Ing.)--École de technologie supérieure, Montréal, 2007.<br>"Master's thesis submitted to École de technologie supérieure in partial fulfillment of the requirements for the master's degree in mechanical engineering". CaQMUQET Bibliogr. : f. [107]-108. Également disponible en version électronique. CaQMUQET

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2

Zaikovska, Liene. "Simulation of a sheet metal leading edge for a three piece vane using bending and deep-drawing." Thesis, Högskolan Väst, Avd för maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5802.

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3

Fu, Yao-Tsung. "Molecular Simulation of Dipsersion and Mechanical Stability of Organically Modified Layered Silicates in Polymer Matrices." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1296182515.

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4

Кухар, В. В., та М. М. Нагнібеда. "Моделювання пружинення заготовки при одноперехідному та багатоперехідному гнутті". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66593.

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5

Schneider, Toma, Antje Harling, and Frank Miletzky. "Generieren lastgerechter Materialparameter für FEM-gestützte Umformprognosen: am Beispiel von Karton-Verbundmaterialien." Thelem Universitätsverlag & Buchhandlung GmbH & Co. KG, 2021. https://tud.qucosa.de/id/qucosa%3A75880.

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Zwei wesentliche Vorrausetzungen zum Aufbau mechanischer Verhaltensprognosen auf Basis der finiten-Element-Methode (FEM) sind die Verfügbarkeit von Materialmodellen sowie zugehörige Messverfahren zur Parameterbestimmung. Gegenstand dieser Abhandlung ist die Vorstellung einer neuartigen Messmethodik zur Erhebung des plastischen Biege- und Faltverhaltens von faserbasierten Verbundmaterialien und dessen Anwendung zum vereinfachten Aufbau von numerischen Struktursimulationen. Als besonderes Merkmal sei dabei der Ansatz einer äußeren, integralen Verhaltensbeschreibung der vielfältigen Vorgänge auf

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Folle, Luís Fernando. "Estudo do coeficiente de atrito para processos de estampagem." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/76155.

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O atrito na interface entre a peça e a ferramenta tem considerável importância em operações de estampagem de chapas, são necessários conhecimentos precisos sobre processos de conformação de chapas para a análise e projeto de novas peças e ferramentas, assim como para validação de uma simulação numérica. Este trabalho usa o método de determinação do coeficiente de atrito em estampagem através do ensaio de dobramento sob tensão e avalia sua precisão com o uso do software de elementos finitos LS-DYNAFORM, específico para esse processo de fabricação. Como existem seis equações que calculam o coefi

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7

Barták, Jan. "Analýza procesu kování háku čelisťového výměnového závěru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416429.

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The thesis is focused on optimalization of jaw turnout lock hook forging process which is used in rail transport and is forged from steel of 13 240 grade. Production process of the hook, that is being used in Královopolská kovárna s.r.o. company now, leads to fold defect in the inner side of curved part formation. Conditions of the folds formation were defined using the numeric simulation of this process in Simufact Forming software. After that improvements such as change of semi-finished product size, change of geometry of ancestor shape, bending tools and forging die were made according to l

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8

Nguyen, Vinhson Ba. "Finite-element simulation of ram pipe bending." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5265.

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9

Raheem, Hassan Hassan [Verfasser]. "Plasto-Mechanical Model of Tube Bending in Rotary Draw Bending Process / Hassan Raheem Hassan." Aachen : Shaker, 2017. http://d-nb.info/1138178209/34.

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10

Ščerba, Bořek. "Vliv nastavení a konfigurace rovnačky na výsledky simulace kosoúhlého rovnání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-418209.

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Analytical methods or implicit finite element method (FEM) with beam elements to model straightened bar were used to analyze straightening process in multi-staggered cross-roll straighteners up to now. These are effective but require certain simplifications. Aim of this thesis is to create an explicit FEM model allowing usage of solid elements for circular bar without disproportional increase of computational time. This may lead to deeper understanding of the straightening process. The model is to be verified using straightening tables and then used to quantify influence of rollers configurati

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11

Mccracken, David Ivan. "The development of a more flexible roll bending process." Thesis, Ulster University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516523.

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12

Hale, Michael Bruce. "Dynamic analysis and control of a roll bending process." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/35332.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING<br>Bibliography: leaves 122-124.<br>by Michael Bruce Hale.<br>M.S.

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13

Bramler, Arild. "Towards improved simulation process capabilities : A simulation process maturity model." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44355.

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Purpose – The purpose of this thesis is to present the result of simulation process maturity (SPM) assessments in the pharmaceutical and manufacturing industry using a process maturity model derived from empirical research. The model is used to benchmark an organisations simulation capability and to apply the results of the assessment to develop a road map for implementing simulation process improvement as well as integration initiatives within the organisation. Methodology approach – This is a survey-based research on benchmarking simulation process in the industry. The SPM model was adopted

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14

Nivarti, Girish Venkata. "The bending effect in turbulent flame propagation." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/270335.

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In the present thesis, the sensitivity of flame propagation to the turbulent motion of burning gases is investigated. The long-standing issue of the 'bending effect' is focused upon, which refers to the experimentally-observed inhibition of flame propagation velocity at high intensities of turbulence. Plausible mechanisms for the bending effect are investigated by isolating systematically the effects of turbulence intensity. By providing a novel perspective on this topic, the thesis addresses the fundamental limits of turbulent burning. The investigation employs Direct Numerical Simulation (DN

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15

Sobczyk, Martin, and Thomas Wallmersperger. "Modeling and simulation of a chemically stimulated hydrogel bilayer bending actuator." SPIE, 2017. https://tud.qucosa.de/id/qucosa%3A34887.

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Stimuli-sensitive hydrogels are polymeric materials, which are able to reversibly swell in water in response to evironmental changes. Relevant stimuli include variations of pH, temperature, concentration of specific ions etc. Stacked layers composed of multiple thin hydrogels - also referred to as hydrogel-layer composites - combine the distinct sensing properties of different hydrogels. This approach enables the development of sophisticated micro uidic devices such as bisensitive valves or uid-sensitive de ectors. In order to numerically simulate the swelling of a polyelectrolyte hydrogel in

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16

Buttar, Alistair George. "CMOS process simulation." Thesis, University of Edinburgh, 1986. http://hdl.handle.net/1842/13282.

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17

Dere, Fatih. "Experimental And Finite Element Analysis Of Rotary Draw Tube Bending Process." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615433/index.pdf.

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Rotary draw bending, which has very good flexibility and easy tooling, is one of the most preferred bending types for tubular profiles. Cross-section distortion and the spring-back phenomena are commonly faced problems in bending processes. Spring-back is the inevitable problem that is to be solved by manufacturer, generally by overbending. For hollow tubes cross-section distortion is another difficulty since using hollow tubes results in higher strain rates and distortions. During the process the thickness of the hollow tube at the inner surface, which is contacting with the die, increases an

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18

Park, Yeong Je. "Modelling and adaptive control of a roll bending process : workpiece dynamics." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/35337.

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19

Vandenbossche, Sacha. "Prediction of paperboard thickness and bending stiffness based on process data." Thesis, KTH, Hållfasthetslära (Avd.), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-258827.

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Bending stiness is one of the most important mechanical properties in paperboard making,giving rigidity to panels and boxes. This property is currently only possible to measure bydestructive measure o the production line. The current quality control method is decient byassuming a non-realistic consistency of the paperboard properties along the machine direction.The objective of this thesis is to predict the thickness and bending stiness of the nal boardsfrom process data.Two modelling approaches are used: the rst model calculates the bending stiness from acalculated thickness, while the other

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20

Ahmed, Rizwan. "A rapid simulation modelling process for novice software process simulation modellers." Thesis, University of Hertfordshire, 2005. http://hdl.handle.net/2299/14298.

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In recent years, simulation modelling of software processes have has promoted as a tool to understand, study, control, and manage software development processes. Claims have been made that simulation models are useful and effective at gaining insight into software development processes. However, little has been said about the process of developing simulation models for software engineering problems. Simulation modelling is a young discipline in software engineering. Consequently, many number software process simulation modellers are thought to be novices. The simulation modelling process is be

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21

Lahey, Timothy. "Modelling Hysteresis in the Bending of Fabrics." Thesis, University of Waterloo, 2002. http://hdl.handle.net/10012/941.

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This thesis presents a model of fabric bending hysteresis. The hysteresis model is designed to reproduce the fabric bending measurements taken by the Kawabata Evaluation System (KES) and the model parameters can be derived directly from these property measurements. The advantage to using this technique is that it provides the ability to simulate a continuum of property curves. Results of the model and its components are compared and constrasted with experimental results for fabrics composed of different weaves and yarn types. An attempt to incorporate the bending model as part of a fab

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22

Kholkin, A. "Numerical simulation of damage and failure of laminated 3-point bending specimens." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10013.

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Mestrado em Engenharia Mecânica<br>Polímeros reforçados por fibras (PRF) tem sido utilizados durante muito tempo para aplicações estruturais, particularmente com laminados. No projeto de laminados é importante caracterizar o seu comportamento mecânico. O comportamento mecânico é caracterizado por uma rigidez inicial e pela fractura. A estratégia de modelação utilizada nesta dissertação permite não só prever o “first-ply-failure”, como também modelar a sequência de eventos a seguir, como a delaminação e a fractura final da estrutura. Para isso é utilizado um modelo para a interface e para as c

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23

Critchley, Katherine. "Process analysis software for draw bending of small diameter thin walled tubes." Thesis, Coventry University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393986.

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24

Runge, Torsten, and Kondragunda Narendra. "Teamcenter Simulation Process Management." Technische Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A21532.

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Manage your simulation processes, data, tools and workflows The pressure to shorten time-to-market while improving product performance and quality is driving the increased use of simulation throughout the product lifecycle. However, without some form of simulation data management, simulation itself can become a process bottleneck. The Teamcenter simulation process management solution has been specifically designed to help you get control of your simulation data and processes in the context of an overall product lifecycle management (PLM) system. With Teamcenter, you can avoid common problems s

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25

Hilligoss, Peter Z. "Modern Craft: Linking Material, Process and Environment." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1244642268.

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26

Johansson, Joel. "Design Automation Systems for Production Preparation : Applied on the Rotary Draw Bending Process." Licentiate thesis, Jönköping University, Jönköping University, JTH, Mechanical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-10673.

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<p>Intensive competition on the global market puts great pressure on manufacturing companies to develop and produce products that meet requirements from customers and investors. One key factor in meeting these requirements is the efficiency of the product development and the production preparation process. Design automation is a powerful tool to increase efficiency in these two processes.</p><p>The benefits of automating the production preparation process are shortened led-time, improved product performance, and ultimately decreased cost. Further, automation is beneficial as it increases the a

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27

PATTNAIK, SHRIKANT PRASAD. "PREDICTION OF BENDING WAVES IN THIN PLATES FORMED BY BUCKLING DURING ROLLING PROCESS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1148319302.

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28

Livatyali, Haydar. "Computer aided process design of selected sheet metal bending processes - flanging & hemming /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487953204283039.

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29

Papageorgiou, Christos Panagiotis. "Process simulation of agricultural products." Thesis, Middlesex University, 2005. http://eprints.mdx.ac.uk/2664/.

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Simulation has been widely used many years ago by chemical engineers to represent several processes and operations, existing in industries of chemical engineering interest. Flow-sheeting calculations is a kind of simulation for preliminary evaluation of different processes. Flow-sheet itself is a key document for the evaluation, design and analysis of processing systems. It shows the processing units arrangement and the streams connecting them, the quantities and compositions at every point of the flow-sheet and the operating conditions (phase, temperature, pressure, enthalpy etc.). Manual flo

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30

Gencoglu, Ahmet. "Physics based turning process simulation." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/36886.

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The manufacturing planning of parts is currently based on experience and physical test trials. The parts are modeled, and Numerically Controlled (NC) tool paths are generated in Computer Aided Manufacturing (CAM) environment. The NC programs are physically tested, and if the process faults are found, the NC program is re-generated in the CAM environment. The objective of this thesis is to develop Virtual Turning System that predicts the part machining process ahead of costly physical trials. Tool–workpiece engagement geometry is calculated along the tool path by a proposed polycurve method. Th

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31

Flitta, Isaac. "Simulation of aluminium extrusion process." Thesis, Bournemouth University, 2004. http://eprints.bournemouth.ac.uk/314/.

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The aim of this thesis is to model the extrusion process conditions for some aluminium alloys using Finite Element Modelling (FEM) program. All the simulations were performed with the implicit finite element code FORGE20 (2-D) and FORGE3® (3-D). In this work only the alloys AA2024, AA2014, Al-1 %Cu and AA6063 where experimental work is available were considered. The FORGE2® program was used to investigate and select an appropriate flow stress constitutive equation to describe the material behaviour to model the process conditions. The extrusion pressure and the temperature rise were predicted

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Nurse, O. A. "Material logistics and process simulation." Thesis, University of Portsmouth, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382604.

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33

Shin, Jong Gye. "Three-dimensional simulation of thermo elastic plastic plate bending by the line heating method." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14480.

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34

Cherif, Redha. "Software Process Simulation Modelling : A Multi Agent-Based Simulation Approach." Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5787.

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In this research we present one of the first actual applications of Multi Agent-Based Simulation (MABS) to the field of software process simulation modelling (SPSM). Although a few previous applications were attempted, we explain in our literature review how these failed to take full advantage of the agency paradigm. Our research resulted in a model of the software development process that integrates performance, cognition and artefact quality, for which we built a common simulation framework to implement and run MABS and System Dynamics (SD) simulators upon the same integrated models. Althoug

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Zelenka, Stefan. "Stress-related problems in process simulation /." Zürich, 2001. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14220.

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36

Ravichandran, Karthik. "Nano-scale process and device simulation." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1125340288.

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37

Arikan, Merve. "Systems Engineering Process Modeling And Simulation." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615164/index.pdf.

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In this study, an approach is proposed to model and simulate the systems engineering process of design projects. One of the main aims is to model the systems engineering process, treating the process itself as a complex system. A conceptual model is developed as a result of a two-phase survey conducted with systems engineers. The conceptual model includes two levels of activity networks. Each first level systems engineering activity has its own network of second level activities. The model is then implemented in object oriented modeling language, namely SysML, using block definition diagrams a

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38

Mahon, Michael John. "Dynamic process simulation of zinc electrowinning." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/56366.

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Zinc electrowinning is the final aqueous processing step in the production of metallic zinc. It is a complex process that is difficult to control and monitor. This thesis seeks to develop a time transient process simulation of zinc electrowinning to aid in controlling and monitoring. Based on reported models of zinc electrowinning, and other electrowinning processes, a dynamic simulation of a zinc electrowinning cell capable of representing time-based effects was developed. The new model incorporates more sophisticated estimations of electrolyte activity using Pitzer parameters. Further, recen

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Ruhweza, Moses. "Computer simulation of Dinitrotoluene Nitration Process." Thesis, Karlstads universitet, Avdelningen för kemiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-66259.

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p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.5px Garamond} This paper presents an approach for modelling a commercial dinitrotoluene (DNT) production process using the CHEMCAD simulation software. A validation of the model was performed based on results of an experimental study carried out at Chematur Engineering AB, Sweden. Important parameters such as fluid properties, temperature profile and other operating conditions for CHEMCAD steady state model were selected so as to obtain the crude DNT yield as well as the acid –and organic phase compositions within the same range as the reference

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Hock, Kuah Teng. "Numerical simulation of sand casting process." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183046313.

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41

Valaškevičius, Šarūnas. "Simulation tool for hybrid process algebras." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100615_084732-33186.

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A hybrid system is a system that presents both continuous time evolution and discrete events. To define and analyse such systems prior to building actual products, a hybrid process algebra can be employed. Simulation is often used as a convenient way for a better understanding of the systems’ evolution and its potential weaknesses. This study aims at creating a general architecture of the simulation tool for hybrid process algebras, together with a practical implementation of Behavioural Hybrid Process Calculus simulator. For achieving this objective, a list of tasks has been composed, includi

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Russell, L. W. "Computer simulation of process plant availability." Thesis, Teesside University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328836.

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Jhan, Ming-Ruei, and 詹明睿. "Simulation Analysis of the Bending Process of Titanium Alloy Tube." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/5668vu.

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碩士<br>國立臺北科技大學<br>製造科技研究所<br>102<br>In general the bending of tubes will cause some geometric imperfections, especially for a high-strength tubes significant springback will occur after the unloading procedure. The aim of this paper is investigating springback and wall thickness reduction rate of Ti-2Al-2.5Zr titanium alloy tubes in order to improve the precision of specification and ability of bearing internal pressure. To achieve a precise bending deformation, the various forming conditions are important. This paper is based on a ∅10×t1 titanium alloy tube model, established by finite elemen

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Wu, Yi-Sian, and 吳宜暹. "Finite Element Simulation and Experimental Analysis of Fine Wire Bending-Compression Forming Process." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/e8h3xb.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>106<br>With the rapid development of 3C products such as electronics, information, and communication devices, the development of products tends to be lighter and smaller, and metal forming parts are gradually replacing the parts produced by plastics. As the demand for miniaturization of products increases, the precision of metal micro forming is an important key. The purpose of this thesis is to establish a CAE analysis model by using the finite element method for the fine wire bending-compression process. And the influence of each process parameter on the springbac

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Po-JuiChiu and 邱柏叡. "Study on Process Defect Simulation of Tube Rotary Draw Bending with Auxiliary Pushing Device." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/kfrny2.

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Leu, Daw-Kwei, and 呂道揆. "Study of Sheet Metal Bending Process." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/09656850799251245527.

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博士<br>國立臺灣科技大學<br>機械工程研究所<br>83<br>A methodology for formulating an elasto-plastic finite-element model based on an updated Lagrangian formulation is developed to simulate sheet bending process. An extended r-min algorithm is proposed to formulate boundary conditions which vary throughout the entire process of sheet bending. The primiary issue of this thesis is to study the tool-workpiece contact problems, including the description of sticking-sliding state of friction and the formulation o

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Li, Kun-wei, and 李坤蔚. "An Analysis of Stainless Tube Bending Process." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/7ax4gu.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>100<br>Thin-walled tube bending processes may produce a wrinkling phenomenon if the process parameters were inappropriate. How to predict this phenomenon effectively and accurately is one of the urgent key problems to be solved for the development of this process. By the use of this FE simulation system, a bending process of thin-wall tube had been simulated, and deformed process were recorded under different bending stages. As a result, the stress distribution along the bending direction, and the relationship between the wall thickness variation and cross-section de

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Lin, Yu-Hung, and 林昱宏. "Finite Element Analysis and Process Design for Rotary Draw-Bending with Small Bending Radius." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/83939977712790663236.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>98<br>The bottleneck of forming small radius tube is that traditional processing methods can’t effectively produce smaller bend radius tube in domestic industry now. First, this study will propose methods without mandrel, based on traditional bending way of rotary draw bending to form small bending radius tubes. This paper investigate results of traditional bending mode without mandrel in second part. By using finite element analysis, find the effects on wall-thinning, wall-thickening and ovility with different processing parameters. Also using the research resu

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hong, wei-zhi, and 洪偉智. "Fabrication of bending waveguide using a simple process." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/3gn2j6.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>97<br>The polymeric bend waveguide are produced by a molding process where the master mold is first formed on a negative tone photoresist and subsequently transferred to a PDMS mold. Initial results show good pattern transfer in physical shape.

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Tsai, Lin-Chien, and 蔡林鈐. "Simulation analysis on Bending Behavior of Honeycomb structural panels." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/b7a9z7.

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Abstract:

碩士<br>國立臺北科技大學<br>製造科技研究所<br>100<br>The structure of the honeycomb panel board because of its special seismic capacity and resistance to impact forces, widely used in engineering. The importance of Sheet metal forming process. In engineering, bending for the common process. This article will explore the honeycomb structural panels of use bending mold to look into the bending feasibility, finite element analysis software LS-DYNA was used to study bending characteristics of honeycomb composite plate. First, the use of analysis software LS-DYNA analysis of the aluminum alloy plate to validate the

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