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dc.contributor.authorAndersen, Eriken_US
dc.date.accessioned2014-03-14T20:38:29Z
dc.date.available2014-03-14T20:38:29Z
dc.date.issued2007-05-03en_US
dc.identifier.otheretd-05242007-201729en_US
dc.identifier.urihttp://hdl.handle.net/10919/33197
dc.description.abstractFor controller design, design of experiments, and other dynamic simulation purposes there is a need to be able to predict the dynamic response and joint reaction forces of a quarter-car suspension. This need is addressed by this study through development and system identification of both a linear and a non-linear multibody dynamics McPherson strut quarter-car suspension model. Both models are developed using a method customary to multibody dynamics so that the same numerical integrator can be used to compare their respective performances. This method involves using the Lagrange multiplier form of the constrained equations of motion to assemble a set of differential algebraic equations that characterize each modelâ s dynamic response. The response of these models to a band-limited random tire displacement time array is then simulated using a Hilber-Hughes-Taylor integrator. The models are constructed to match the dynamic response of a state-of-the-art quarter-car test rig that was designed, constructed, and installed at the Institute for Advanced Learning and Research (IALR) for the Performance Engineering Research Lab (PERL). Attached to the experimental quarter-car rig was the front left McPherson strut suspension from a 2004 Porsche 996 Grand American Cup GS Class race car. This quarter-car rig facilitated acquisition of the experimental reference data to which the simulated data is compared. After developing these models their optimal parameters are obtained by performing system identification. The performance of both models using their respective optimal parameters is presented and discussed in the context of the basic linearity of the experimental suspension. Additionally, a method for estimating the loads applied to the experimental quarter-car rig bearings is developed. Finally, conclusions and recommendations for future research and applications are presented.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartAndersen_Thesis_2007.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectMcPherson Struten_US
dc.subjectSystem Identificationen_US
dc.subjectQuarter-Caren_US
dc.subjectMultibody Dynamicsen_US
dc.titleMultibody Dynamics Modeling and System Identification for a Quarter-Car Test Rig with McPherson Strut Suspensionen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.contributor.committeechairSandu, Corinaen_US
dc.contributor.committeememberKasarda, Mary E. F.en_US
dc.contributor.committeememberSouthward, Steve C.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05242007-201729/en_US
dc.date.sdate2007-05-24en_US
dc.date.rdate2007-08-03
dc.date.adate2007-08-03en_US


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