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THE FORCED VIBRATION OF A BEAM WITH VISCOELASTIC BOUNDARY SUPPORTS

โœ Scribed by Z.-J. Fan; J.-H. Lee; K.-H. Kang; K.-J. Kim


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
179 KB
Volume
210
Category
Article
ISSN
0022-460X

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โœฆ Synopsis


A method of analysis for the forced vibration of a beam with viscoelastic boundary supports is proposed based on complex normal mode analysis. The viscoelastic support regions are first described in terms of equivalent complex stiffness coefficients, and then using the complex modes of the beam system with complex stiffness at the boundary points, the equations of motion are completely uncoupled. The modal equation has precisely the same form as the equation of a structurally damped single-degree-of-freedom system. Effects of the viscoelastic supports on the forced vibration response are discussed as an example.


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