Experimental Evaluation of Semiactive Magneto-Rheological Suspensions for Passenger Vehicles
dc.contributor.author | Pare, Christopher A. | en |
dc.contributor.committeechair | Ahmadian, Mehdi | en |
dc.contributor.committeemember | Saunders, William R. | en |
dc.contributor.committeemember | Nelson, Douglas J. | en |
dc.contributor.department | Mechanical Engineering | en |
dc.date.accessioned | 2014-03-14T20:51:45Z | en |
dc.date.adate | 1998-06-17 | en |
dc.date.available | 2014-03-14T20:51:45Z | en |
dc.date.issued | 1998-05-26 | en |
dc.date.rdate | 1998-06-17 | en |
dc.date.sdate | 1998-05-26 | en |
dc.description.abstract | This study experimentally evaluates the dynamic response of a single vehicle suspension incorporating a magneto-rheological (MR) damper. A full-scale two-degree-of-freedom (2DOF) quarter-car test apparatus has been constructed at the Advanced Vehicle Dynamics Lab at Virginia Tech to evaluate the response of a vehicle suspension under the different control schemes of skyhook, groundhook, and hybrid semiactive control. The quarter-car apparatus was constructed using materials from 80/20 Incorporated and a hydraulic actuation system from MTS. A dSPACE AutoBox was used both for controlling the MR dampers and acquiring data. The first task was to understand the baseline dynamic response of the quarter-car system with only a passive damper. Next, the passive damper was replaced with a controllable MR damper. The control schemes of skyhook, groundhook, and hybrid semiactive control were applied to the MR damper. The physical response of the quarter-car with the different control schemes was then compared to the analytical prediction for the response, with favorable results. The response of the quarter-car with the semiactive damper was also compared to the response of the quarter-car with a passive damper, and the resulting limitations of passive damping are discussed. Finally, the practical implications of this study are shown in a discussion of the physical implementation of the MR dampers in the Virginia Tech FutureCar, a full-size Chevrolet Lumina. Although the actual skyhook, groundhook, and hybrid semiactive control schemes were not implemented on the vehicle, the results were promising and generated several recommendations for future research. | en |
dc.description.degree | Master of Science | en |
dc.identifier.other | etd-51598-19251 | en |
dc.identifier.sourceurl | http://scholar.lib.vt.edu/theses/available/etd-51598-19251/ | en |
dc.identifier.uri | http://hdl.handle.net/10919/36770 | en |
dc.publisher | Virginia Tech | en |
dc.relation.haspart | etd.pdf | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | semiactive | en |
dc.subject | magnetorheological | en |
dc.subject | skyhook | en |
dc.subject | groundhook | en |
dc.subject | damper | en |
dc.subject | experimental | en |
dc.subject | vehicle dynamics | en |
dc.title | Experimental Evaluation of Semiactive Magneto-Rheological Suspensions for Passenger Vehicles | en |
dc.type | Thesis | en |
thesis.degree.discipline | Mechanical Engineering | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
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