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RESEARCH PAPERS

Power Flow in Linear, Active Vibration Isolation Systems

[+] Author and Article Information
S. Mahajan

CAE Tech, Inc., 38701 West 7 Mile Rd., Ste. 465, Livonia, MI 48152

R. Redfield

Department of Engineering Mechanics United States Air Force Academy, CO 80840

J. Vib. Acoust 120(2), 571-578 (Apr 01, 1998) (8 pages) doi:10.1115/1.2893866 History: Received April 01, 1995; Online February 26, 2008

Abstract

Power flow and net energy transfer are examined for actively controlled, vibration isolation dynamics. Fundamental concepts of active damping systems are studied by examining the average power flow in the controlled and passive actuators subject to harmonic inputs. Expressions for energies delivered and absorbed by the actuators per cycle are derived for one and two degree-of-freedom vibration models. Sensitivity to system parameters on power flow in the passive and active components is examined. This analysis tool can be useful in the design of low-power active and regenerative systems.

Copyright © 1998 by The American Society of Mechanical Engineers
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