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RESEARCH PAPERS

Active Control of Structure-Borne Road Noise Using Vibration Actuators

[+] Author and Article Information
W. Dehandschutter, P. Sas

KULeuven, Dept. Mech. Engineering, div. PMA, Celestijnenlaan 300B, 3001 Heverlee, Leuven, Belgium

J. Vib. Acoust 120(2), 517-523 (Apr 01, 1998) (7 pages) doi:10.1115/1.2893860 History: Received February 01, 1996; Online February 26, 2008

Abstract

Structure-borne road noise is generated by road induced excitation forces. The control approach presented here relies on the use of vibration actuators to modify the vibration behavior of the car body such that its noise radiation efficiency is decreased (Active Structural Acoustic Control—ASAC). The controller is optimized using laboratory experiments and numerical tools to simulate the performance a complete vehicle control set-up. Road tests yield a 6.9 dB noise reduction in the frequency range 75–105 Hz at the error microphone and 6.1 dB noise reduction at the passenger’s ear.

Copyright © 1998 by The American Society of Mechanical Engineers
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