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The Vibration Reduction Analysis of a Rotating Mechanism Deck System

Published online by Cambridge University Press:  05 May 2011

Y.-R. Wang  and
T.-H. Chen
Y.-R. Wang*
Affiliation:
Department of Aerospace Engineering, Tamkang University, Tamsui, Taiwan 25137, R.O.C.
T.-H. Chen*
Affiliation:
Department of Aerospace Engineering, Tamkang University, Tamsui, Taiwan 25137, R.O.C.
*
*Associate Professor
**Graduate student
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Abstract

In this paper, an optimized position of a mass-spring-damper vibration absorber is proposed for a rotating mechanism device (such as optical disk drive or rotary-wing and deck coupled system). A nonlinear 3-D theoretical model for a deck is established by Lagrange's equation. A 2-bladed rotor and deck (foundation) coupled aeroelastic system with vibration reduction device is presented and studied as well. The analytical solution is obtained by the Multiple-scales method for the case of no vibration absorber. The numerical results in time and frequency domain and with/no absorber are acquired. This research provides a theoretical background for the preliminary vibration reduction design for industries. It is found that the existing disk drives vibration can be reduced by simply adding the absorber at the end corner isolator of the deck, but without changing the main configurations. This will not only save costs but also increase testing efficiency, achieving the most cost-effective vibration reduction result.

Keywords

Vibration absorberRotating FundationRotary-wing Blade.
Type
Articles
Information
Journal of Mechanics , Volume 24 , Issue 3 , September 2008 , pp. 253 - 266
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2008

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