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Dynamic Transmissibility of a Complex Nonlinear Coupling Isolator

Ping YANG1,2( ), Jianming YANG2,3, Jianning DING1
Research Center of Micro-Nano Science and Technology, Jiangsu University, Zhenjiang 212013, China
Research Center of Advanced Design and Manufacturing, Guilin Institute of Electronic Technology, Guilin 541004, China
College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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Abstract

A mathematical model was developed for a complex nonlinear coupling isolator for attenuating vibration which coupled quadratic damping, viscous damping, Coulomb damping, and nonlinear spring forces. The approximate analytical solution for the dynamic transmissibility of the isolator was deduced by combining Fourier transforms and the harmonic balance method with deterministic excitation. The mathematical characteristics of the dynamic transmissibility were analyzed to illustrate the dynamic performance of the isolator. The analytical results show multiple solutions, especially the low-frequency attenuation characteristics below the resonance frequency. The results provide a theoretical basis for the design of nonlinear isolators.

Keywords

complex nonlinear coupling isolatormathematical modeltransmissibilityvibrations

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Tsinghua Science and Technology
Volume 11 Issue 5,
October 2006
Pages 538-542
DOI: 10.1016/S1007-0214(06)70231-0

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Cite this article:
YANG P, YANG J, DING J. Dynamic Transmissibility of a Complex Nonlinear Coupling Isolator. Tsinghua Science and Technology, 2006, 11(5): 538-542. https://doi.org/10.1016/S1007-0214(06)70231-0

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Received: 26 April 2005
Revised: 27 June 2005
Published: 01 October 2006
© Tsinghua University Press 2006