On The Vibration Reduction of a Nonlinear Support Base with Dual-shock-absorbers

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Title:	On The Vibration Reduction of a Nonlinear Support Base with Dual-shock-absorbers
Authors:	Wang, Yi-ren;Chang, Ming-hsiang
Contributors:	淡江大學航空太空工程學系
Keywords:	Shock absorber;Nonlinear vibration;Vibration reduction
Date:	2010-09-01
Issue Date:	2013-03-20 16:29:10 (UTC+8)
Publisher:	台南市：中華民國航空太空學會
Abstract:	The concept of the vibration reduction via position change of the vibration absorbers was introduced in this study. A rigid body plate was taken as the main body. Each of the four corners of the main body was supported by a cubic spring to simulate the transverse-rotate-rotate nonlinear vibrations. Two point-mass shock absorbers were suspended under the body. The positions of these two absorbers could be adjusted to achieve the best vibration reduction effect. The method of multiple scales was used to obtain analytic solutions to this vibration system. Both analytic and numerical results were compared to verify the impacts on system vibration from positions of these two shock absorber devices. This study found that, when natural frequencies of these two shock absorbers are similar, the vibration reduction effect is better. This phenomenon often appears at the endpoint of the rigid body plate when the dual-shock- absorbers are at the same position.
Relation:	Journal of Aeronautics, Astronautics and Aviation. Series A 42(3), pp.179-190
Appears in Collections:	[Graduate Institute & Department of Aerospace Engineering] Journal Article

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