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Dissertations / Theses on the topic 'Machinery Vibration Modal analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Ronval, Gilles P. L. "Automatic modal analysis and taxonomy for vibration signature recognition." Thesis, University of Huddersfield, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305084.

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2

Smit, Wynand Gerhardus. "Fan blade damage detection using on-line vibration monitoring." Diss., Pretoria : [s.n.], 2002. http://upetd.up.ac.za/thesis/available/etd-11302005-091637/.

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3

Åkesson, Henrik. "Active control of vibration and analysis of dynamic properties concerning machine tools." Licentiate thesis, Karlskrona : Blekinge Institute of Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00360.

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Vibration in internal turning is a problem in the manufacturing industry. Vibrations appear under the excitation applied by the material deformation process during the machining of a workpiece. In order for a lathe to perform an internal turning or boring operation, for example, in a pre-drilled hole in a workpiece, it is generally required that the boring bar should be long and slender; therefore extra sensitive to vibrations. These vibrations will affect the result of machining, in particular the surface finish, also the tool life may be reduced. As a result of tool vibration, severe acousti

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4

Yumer, Mehmet Ersin. "On The Non-linear Vibration And Mistuning Identification Of Bladed Disks." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611498/index.pdf.

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Forced response analysis of bladed disk assemblies plays a vital role in rotor blade design and has been drawing a great deal of attention both from research community and engine industry for more than half a century. However because of the phenomenon called &lsquo<br>mistuning&rsquo<br>, which destroys the cyclic symmetry of a rotor, there have been several difficulties related to forced response analysis ever since, two of which are addressed in this thesis: efficient non-linear forced response analysis of mistuned bladed disks and mistuning identification. On the nonlinear analysis side, a

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5

Djemal, Fathi. "Analyse et optimisation des batteurs dynamiques non linéaires." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0007/document.

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Les vibrations qui sont en général source de dérangement, d’usure et même destruction des machines et structures mécaniques doivent être contrôlées ou éliminées. Pour cette raison, la lutte contre les vibrations est devenue depuis des années un enjeu majeur pour les chercheurs de laboratoire et de développement dans l’industrie afin de développer des solutions efficaces contre ces problèmes. De nombreuses technologies ont donc été développées. Parmi ces technologies, les absorbeurs de vibration non linéaires présentent des performances importantes dans l’atténuation de vibration sur une large

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6

Gutierrez-Wing, Enrique Simon. "Modal analysis of rotating machinery structures." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409293.

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7

Feuardent, Valérie. "Amélioration des modèles par recalage : application aux structures spatiales." Cachan, Ecole normale supérieure, 1997. http://www.theses.fr/1997DENS0019.

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Les modèles de calcul doivent permettre de prédire le comportement de structure complexe de façon précise. Il s'agit de minimiser la distance séparant les résultats de calcul (modèles éléments-finis) des données expérimentales (vibrations libres). Pour cela, la technique itérative de localisation-correction basée sur la notion de mesure d'erreur en relation de comportement (incluant une mesure d'erreur dynamique) est utilisée. Une base réduite de projection est proposée pour le recalage concernant les modélisations à grand nombre de degrés de liberté. Cette base construite à l'aide d'une métho

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8

Zhou, Wenliang. "Multivariate analysis in vibration modal parameter identification /." View online ; access limited to URI, 2006. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3248248.

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9

Mahdi, Hassan Hamoodi. "Vibrational modal analysis of rotating machines." Thesis, University of Hertfordshire, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303391.

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10

Zirkelback, Nicole Lisa. "Ritz series analysis of rotating machinery." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17562.

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11

Durantay, Lionel. "Analyse vibratoire d'un stator de machine électrique asynchrone et modélisation des forces d'attraction électromagnétique d'entrefer." Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL103N.

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Ce mémoire présente deux contributions à l'analyse vibratoire des machines électriques asynchrones de moyenne puissance. Dans la première partie, nous proposons une simulation 2D des principaux défauts géométriques de l'entrefer et la détermination des résultantes de forces électromagnétiques associées. Un mailleur dédié a été développé intégrant les paramètres de trajectoire rotorique et de défauts géométriques des contours de l'entrefer. Les forces d'attraction magnétique obtenues par méthodes analytiques et numériques sont comparées et validées. Nous réalisons la simulation électromécanique

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12

Hall, Melissa A. "Characterization of Vibration Test Fixtures using Modal Analysis." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627664784639955.

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13

Gao, Xingliang. "Schwingungen von Offsetdruckmaschinen." Doctoral thesis, [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=968754791.

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14

Sellami, Takwa. "Contribution à l’usage de l’analyse vibratoire comme outils de monitoring et de diagnostic d’avaries pour les machines électriques tournantes." Thesis, Cergy-Pontoise, 2017. http://www.theses.fr/2017CERG0915.

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Les capacités installées d’énergie éolienne continuent à croître rapidement et prennent une place de plus en plus significative dans le monde. Au fur et à mesure, les études menées sur la conception, la sureté de fonctionnement et la supervision de la chaîne éolienne ont pris progressivement de l’importance. Deux axes de recherche ont été privilégiés dans cette thèse. Le premier concerne la continuité de service d'une éolienne connectée au réseau en présence de défaut de court-circuit entre spires dans une phase du stator de la génératrice asynchrone à cage d'écureuil. L'analyse du défaut ains

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15

Israr, Asif. "Vibration analysis of cracked aluminium plates." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/261/.

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This research is concerned with analytical modelling of the effects of cracks in structural plates and panels within aerospace systems such as aeroplane fuselage, wing, and tail-plane structures, and, as such, is part of a larger body of research into damage detection methodologies in such systems. This study is based on generating a so-called reduced order analytical model of the behaviour of the plate panel, within which a crack with some arbitrary characteristics is present, and which is subjected to a force that causes it to vibrate. In practice such a scenario is potentially extremely dan

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16

Jones, Janeen Ayana. "Modal analysis on a stiffened panel : an application of laser vibrometry." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/16397.

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17

Wake, Richard Neil. "Detection of cracks in cylinders using modal analysis." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321302.

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18

Octavio, de Alba Alvarez Ricardo. "Vibration analysis of uncertain spot-welded structures." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/348956/.

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Spot-welded structures contain inherent variability in location and/or stiffness due to the complexity of the manufacturing process. Therefore, an analysis that includes the uncertainty generated in the joints will provide a range of response predictions, adding more value to the design process compared to deterministic results. Finite element (FE) analysis is frequently used in conjunction with Monte Carlo simulations (MCS) to predict the variability in the vibration response of assembled structures, however this is usually computationally expensive. Small numerical spot weld models must be u

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19

Sumali, Hartono. "A New Adaptive Array of Vibration Sensors." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30642.

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The sensing technique described in this dissertation produces modal coordinates for monitoring and active control of structural vibration. The sensor array is constructed from strain-sensing segments. The segment outputs are transformed into modal coordinates by a sensor gain matrix. An adaptive algorithm for computing the sensor gain matrix with minimal knowledge of the structure's modal properties is proposed. It is shown that the sensor gain matrix is the modal matrix of the segment output correlation matrix. This modal matrix is computed using new algorithms based on Jacobi rotations. The

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20

Zainal, Mohd Shafiq Sharhan bin. "Simulation and experimental study for vibration analysis on rotating machinery." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19769.

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This student thesis aims to analyze the unbalance on rotating machinery by simulation and experimental. The machinery flywheel rotation is modelled as a Single Degree of Freedom (SDOF) and Multi Degree of Freedom (MDOF) system. The model rotation unbalance is simulated by MATLAB. Then the vibration measurement is taken by experimental. In addition, the tachometer is used to determine the flywheel speed calibration. Finally, the rotating unbalance reduction simulation is performed with different parameter value to determine an optimum level of machinery rotation vibration. Unbalance on rotating

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21

Marcollo, Hayden 1972. "Multimodal vortex-induced vibration." Monash University, Dept. of Mechanical Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/7674.

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22

Nolte, Frederick Carl. "Special topics in nonlinear modal interaction and component mode analysis." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/17602.

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23

Moloney, Christopher W. "Visual and analytical characteristics for the identification of complex modes." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/16337.

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24

Yao, Yuwen. "Analysis of multi-branch torsional vibration for design optimization." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=19.

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Thesis (Ph. D.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains viii, 180 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 123-128).

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25

Shepenkov, Valeriy. "Vibration Modal Analysis of a Deployable Boom Integrated to a CubeSat." Thesis, KTH, Strukturmekanik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-122076.

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CubeSat or Cubic Satellite is an effective method to study the space aroundthe Earth thanks to its low cost, easy maintenance and short lead time. However, a great challenge of small satellites lies in achieving technicaland scientific requirements during the design stage. In the present workprimary focus is given to dynamic characterization of the deployable tapespringboom in order to verify and study the boom deployment dynamiceffects on the satellite. The deployed boom dynamic characteristics werestudied through simulations and experimental testing. The gravity offloadingsystem was used to

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26

Funnell, M. E. (Marc Edwin). "Helicopter tail boom vibration analysis and suppression." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52873.

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Thesis (MScEng)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: An experimental investigation was conducted usmg a cantilever beam to illustrate an understanding of vibration techniques and phenomena. The [Tee and forced vibration of the cantilever beam was investigated using various modelling strategies. Theoretical models such as the Lumped parameter, Myklestad, Distributed Parameter and Finite Element Methods were analysed and compared with experimental measurements. Excellent agreement of the natural frequencies, mode shapes and the harmonic transfer functions were found. To

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27

Tremaine, Kellie Michelle. "MODAL ANALYSIS OF COMPOSITE STRUCTURES WITH DAMPING MATERIAL." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/823.

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The purpose of this study is to develop an analytical solution for modal analysis of actively damped orthotropic composite plates in bending and to verify it with experimental analysis. The analytical modal analysis solution for composite plate dynamics is derived using Euler theory. This analysis applies to structures with orthotropic lamina of uniform material properties at any lamination angle. The bending-extensional coupling can be neglected for plates that are symmetric or approximately symmetric, which allows an exact solution for natural frequency and mode shape to be obtained. An exac

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28

Ismail, Rainah. "Vibration analysis of a plate with an arbitrarily orientated surface crack." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4002/.

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This research presents a vibration analysis for a thin isotropic plate containing an arbitrarily orientated surface crack. The work has been motivated by the well known applicability of various vibrational techniques for structural damage detection in which the detection and localisation of damage to thin plate structures at the earliest stage of development can optimise subsystem performance and assure a safer life, and is intended to be an enhancement to previous work on cracked plates for which the orientation of the crack angle was not included. The novelty of this research activity has be

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29

Hassan, Mohd Firdaus Bin. "Nonlinear analysis of rotating machinery running on foil-air bearings." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/nonlinear-analysis-of-rotating-machinery-running-on-foilair-bearings(b16f6146-676b-42c2-aeae-cab321831d78).html.

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The recently-developed simultaneous solution scheme for solving nonlinear rotordynamic systems running on foil-air bearings (FABs) has overcome the practice of decoupling the air film, foil and rotor equations that has been typically followed to reduce computational burden at the expense of accuracy. However, the published works using the simultaneous solution technique have been limited to a simple bump foil model in which the individual bumps were modelled as independent spring-damper (ISD) subsystems. The overall aim of this thesis is to present methods that enable more realistic FAB models

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30

Capraro, Ilaria. "Operational Modal Analysis: the CEME Skywalk at UBC, Vancouver." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4240/.

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Slender and lighter footbridges are becoming more and more popular to meet the transportation demand and the aesthetical requirements of the modern society. The widespread presence of such particular structures has become possible thanks to the availability of new, lightweight and still capable of carrying heavy loads material . Therefore, these kind of structure, are particularly sensitive to vibration serviceability problems, especially induced by human activities. As a consequence, it has been imperative to study the dynamic behaviour of such slender pedestrian bridges in order to define

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31

Johnson, Scott E. Vlattas John. "Modal analysis and active vibration control of the Naval Postgraduate School Space Truss /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA350137.

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Thesis (M.S. in Astronautical Engineering) Naval Postgraduate School, June 1998.<br>Thesis advisor(s): Brij N. Agrawal, Gangbing Song. Includes bibliographical references (p. 115-118). Also available online.

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32

Johnson, Scott E., and John Vlattas. "Modal analysis and active vibration control of the Naval Postgraduate School Space Truss." Thesis, Monterey, California. Naval Postgraduate School, 1998. http://hdl.handle.net/10945/8682.

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Approved for public release, distribution is unlimited<br>This thesis examines active control of the Naval Postgraduate School (NPS) Space Truss using a piezoceramic stack actuator. Preceding the development of an active control mechanism for the NPS space truss, modal testing was performed to identify the modal properties of the truss. An impact hammer provided excitation to the truss and accelerometers easured the truss' response. Two data acquisition systems were used independently to gather and analyze data. For active control, an active strut, consisting of a piezoceramic stack, a force t

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33

Buke, Fatih. "An Investigation On The Application Of Operational Modal Analysis." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607529/index.pdf.

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Modal parameter identification of a structure is done through modal testing and modal analysis using various system identification methods. These methods employ linear input-output relationships to extract the modes of a structure. There are cases where laboratory testing of a structure is not possible or information about the structure under operating conditions is seeked. A set of techniques called Operational Modal Analysis have been developed for modal parameter identification in operating conditions of a structure. These techniques use only response measurements to extract the modes. The

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34

Nembhard, Adrian. "On-bearing vibration response integration for condition monitoring of rotating machinery." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/onbearing-vibration-response-integration-for-condition-monitoring-of-rotating-machinery(f713f156-11f3-4e10-846e-0b9b709f0ff9).html.

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Vibration-based fault diagnosis (FD) with a simple spectrum can be complex, especially when considering FD of rotating machinery with multiple bearings like a multi-stage turbine. Various studies have sought to better interpret fault spectra, but the process remains equivocal. Consequently, it has been accepted that the simple spectra requires support from additional techniques, such as orbit analysis. But even orbit analysis can be inconclusive. Though promising, attempts at developing viable methods that rival the failure coverage of spectrum analysis without gaining computational complexity

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35

Frew, David Anthony. "The design, development and vibration analysis of a high-speed aerostatic bearing." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/362.

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36

Al-Budairi, Hassan Dakhil. "Design and analysis of ultrasonic horns operating in longitudinal and torsional vibration." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/3851/.

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Combining modes of vibration, such as longitudinal and torsional vibration, is advantageous in many ultrasonic applications such as ultrasonic drilling, welding, and motors. In this work we present a novel approach to the design a longitudinal-torsional (LT) ultrasonic horn which adapts the front mass in a traditional Langevin transducer. Different approaches, such as degeneration of longitudinal vibration and coupling between longitudinal (L) and torsional (T) modes, have been used to generate the LT mode of vibration. The degeneration approach creates a non-uniform section, by cutting and tw

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37

Miles, Toby J. "New development in experimental analysis of torsional vibration for rotating shaft systems." Thesis, Loughborough University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389773.

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38

Erdahl, Dathan S. (Dathan Shane). "Microelectronics Device Inspection System Implementation and Modeling for Flip Chips and Multi-Layer Ceramic Capacitors." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6902.

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Increased demand for smaller electronics is driving the electronic packaging industry to develop smaller, more efficient component level packages. Surface mounted components, such as flip chips, ball grid arrays (BGAs), and chip-scale packages (CSPs), are being developed for use in high-volume production. All of these technologies use solder bumps to attach the active silicon to the substrate, and traditional nondestructive methods such as machine vision, acoustic microscopy or x-ray inspection cannot easily find solder bump defects. Therefore, a system, consisting of an Nd:YAG laser that de

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39

Yang, James. "Comparison of added mass modelling for ships." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/28732.

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This thesis presents a comparison of added mass modeling techniques that may be used to determine the the vibration response characteristics of ships in water. The mathematical treatment of added mass is reviewed, and a number of numerical approaches are discussed. Experiments to determine the natural frequencies of a ship model in air and in water were performed and were compared with the results obtained from the numerical approaches. It will be shown in this thesis that the use of modal analysis to predict ship vibration responses in water is a satisfactory and less time consuming alternati

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40

Li, Zheng. "Spur gear teeth contact analysis on power-train transmission noise, vibration and harshness." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3163/.

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The gear meshing is very complex process as high non-linearity behaviour is involved during the process. Normally most analysis of gear tooth contact is on the basis of a hypothesis that the contacted gear teeth are cantilever beams to obtain the approximate results quickly. However, many important factors have been ignored in simulating gear tooth contact using cantilever beam hypothesis, those factors include tooth profile variations, gear rotation speed and input torque, coefficient of friction and geometry distortion. Many of non-linear responses such as noise, vibration, abrasion and so o

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41

Ojeda, Alejandro P. "MATLAB implementation of an operational modal analysis technique for vibration-based structural health monitoring." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74412.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 72-73).<br>Vibration-based structural health monitoring (SHM) has become an attractive solution for the global monitoring and evaluation of damage in structures. Numerous damage detection schemes used in vibration-based SHM require knowledge of the modal properties of the structure under evaluation in its current state. The technique of operational modal analysis allows for these modal properties to be o

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42

Potgieter, Brendon Ryan. "Experimental modal analysis and model validation of antenna structures." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5423.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Numerical design optimisation is a powerful tool that can be used by engi- neers during any stage of the design process. Structural design optimisation is a specialised usage of numerical design optimisation that has been adapted to cater speci cally for structural design problems. A speci c application of structural design optimisation that will be discussed in the following report is experimental data matching. Data obtained from tests on a physical structure will be matched

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43

Wells, Allan R. "Spectral analysis of multi-spindle machining heads /." Online version of thesis, 1994. http://hdl.handle.net/1850/12019.

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Stasiunas, Eric Carl. "Using Vibration Analysis to Determine Refrigerant Levels In an Automotive Air Conditioning System." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/43366.

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Presently, auto manufacturers do not have do not have efficient or accurate methods to determine the amount of refrigerant (R-134a) in an air conditioning system of an automobile. In the research presented, vibration analysis is examined as a possible method to determine this R-134a amount. Initial laboratory tests were completed and experimental modal analysis methods were investigated. This approach is based on the hypothesis that the natural frequency of the accumulator bottle is a function of the mass of refrigerant in the system. Applying this theory to a working automotive air conditioni

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45

Liu, Chao-Shih. "Analysis, approach and assessment of vibration criteria in shipboard machinery condition monitoring and diagnostics." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA276583.

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46

Ruggiero, Eric John. "Active Dynamic Analysis and Vibration Control of Gossamer Structures Using Smart Materials." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/32299.

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Increasing costs for space shuttle missions translate to smaller, lighter, and more flexible satellites that maintain or improve current dynamic requirements. This is especially true for optical systems and surfaces. Lightweight, inflatable structures, otherwise known as gossamer structures, are smaller, lighter, and more flexible than current satellite technology. Unfortunately, little research has been performed investigating cost effective and feasible methods of dynamic analysis and control of these structures due to their inherent, non-linear dynamic properties. Gossamer spacecraft ha

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47

Kaya, Huseyin. "Experimental Modal Analysis Of A Steel Grid Frame." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/3/12604710/index.pdf.

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In this study, experimental modal analysis was studied. Experimental modal analysis includes modal testing, modal parameter estimation and calibration. For this purpose a 4 span skewed steel frame was constructed in Structural Mechanics Laboratory of Civil Engineering Department of METU. The model was transported to Vibration and Acoustic Laboratory of Mechanical Engineering Department of METU. The tests were conducted by cooperation with Vibration and Acoustics Laboratory. Due to lack of experimental modal analysis software in Structural Mechanics Laboratory, modal parameter estimation and fi

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48

Baronti, Mattia. "Identificazione e localizzazione del danno in strutture reticolari mediante modi di vibrare e reti neurali artificiali." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Il presente elaborato è finalizzato a determinare un metodo di indagine che consenta l’identificazione e la valutazione di danneggiamenti in strutture reticolari, mediante l’utilizzo di modi di vibrare e reti neurali artificiali. Nell’ambito dell’ingegneria civile, con il termine Structural Health Monitoring, si identificano le metodologie di monitoraggio che permettono l’individuazione di anomalie strutturali, consentendo la valutazione, in modo continuo ed automatizzato, dello stato di salute di un’opera. Metodologie Deep Learning, applicate allo SHM, sono al centro della ricerca scientifica

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49

Chang, Ellen E. "Damping Identification of Viscoelastic Coating Material through Finite Element Modal Analysis." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439295466.

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50

Azoury, Chadi. "Analyse dynamique d’un vilebrequin nouvel élément fini filaire." Toulouse 3, 2007. http://www.theses.fr/2007TOU30023.

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Abstract:

Ce travail de thèse vise à analyser le comportement dynamique d'un vilebrequin afin d'aboutir à un modèle élément fini simple pouvant simuler ses comportements. Un modèle E. F utilisant un maillage volumique d'éléments tétraédriques est réalisé. Ce modèle fournit les valeurs des modes et fréquences propres de vibration du vilebrequin. Ensuite les résultats du modèle élément fini sont validés par la méthode d'analyse expérimentale. Le but de cette thèse est de remplacer le maillage volumique par un maillage filaire. Plusieurs nouveaux éléments de poutre ont été proposés et étudiés sur une struc

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