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Proceedings Paper

Design and modeling of a hydraulically amplified magnetostrictive actuator for automotive engine mounts
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Paper Abstract

A bidirectional magnetostrictive actuator with millimeter stroke and a blocked force of few tens of Newtons has been developed based on a Terfenol-D driver and a simple hydraulic magnification stage. The actuator is compared with an electrodynamic actuator used in active powertrain mounts in terms of electrical power consumption, frequency bandwidth, and spectral content of the response. The measurements show that the actuator has a flat free-displacement and blocked-force response up to 200 Hz, suggesting a significantly broader frequency bandwidth than commercial electromagnetic actuators while drawing comparable amounts of power.

Paper Details

Date Published: 31 March 2009
PDF: 12 pages
Proc. SPIE 7290, Industrial and Commercial Applications of Smart Structures Technologies 2009, 72900D (31 March 2009); doi: 10.1117/12.817019
Show Author Affiliations
Suryarghya Chakrabarti, The Ohio State Univ. (United States)
Marcelo J. Dapino, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 7290:
Industrial and Commercial Applications of Smart Structures Technologies 2009
Benjamin K. Henderson; M. Brett McMickell, Editor(s)

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