Active Vibration Isolation Using an Induced Strain Actuator with Application to Automotive Seat Suspensions

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dc.contributor.authorMalowicki, Marken
dc.contributor.authorLeo, Donald J.en
dc.contributor.departmentCenter for Intelligent Material Systems and Structures (CIMSS)en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2017-09-18T10:09:32Zen
dc.date.available2017-09-18T10:09:32Zen
dc.date.issued2001-01-01en
dc.date.updated2017-09-18T10:09:32Zen
dc.description.abstractActive vibration isolation of automotive seats requires actuators that achieve millimeter-range displacements and forces on the order of 300 N. Recent developments in piezoceramic actuator technology provide a means for achieving these force and displacement levels in a compact device. This work demonstrates that prestressed, curved piezoceramic actuators achieve the force and displacement levels required for active isolation of automotive seats. An estimate of the force and displacement requirements are obtained from numerical simulations on a four-degree-of-freedom car and seat model that utilize representive road accelerations as inputs. An actuator that meets these specifications is designed using piezoceramic materials. Free displacement of 4.4 mm and blocked force greater than 300 N are measured. The actuator is integrated within a dead mass setup that simulates the isolation characteristics of an automotive seat. Control experiments demonstrate that active vibration is achievable with realistic road disturbances. Feedback control is able to eliminate any amplification due to mechanical resonance and reduce the isolation frequency from 9.5 Hz to 2 Hz.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMark Malowicki and Donald J. Leo, “Active Vibration Isolation Using an Induced Strain Actuator with Application to Automotive Seat Suspensions,” Shock and Vibration, vol. 8, no. 5, pp. 271-285, 2001. doi:10.1155/2001/739685en
dc.identifier.doihttps://doi.org/10.1155/2001/739685en
dc.identifier.urihttp://hdl.handle.net/10919/79109en
dc.language.isoenen
dc.publisherHindawien
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.holderCopyright © 2001 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleActive Vibration Isolation Using an Induced Strain Actuator with Application to Automotive Seat Suspensionsen
dc.title.serialShock and Vibrationen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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