Title: Approach on design of diplex multi-medium coupling isolator based on random excitation situation

Authors: Ping Yang, Gang Zheng, Bing Yang

Addresses: Laboratory of Advanced Design & Manufacturing, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China. ' Laboratory of Advanced Design & Manufacturing, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China. ' Department of Computer, Huaihua Vocational and Technical College, Huaihua 41800, P.R. China

Abstract: The aim of this article is to provide a systematic method to design a diplex multi-medium coupling isolator for precision equipment on moving vehicles. A mathematical model of a diplex multi-medium coupling isolator was built for the demand of attenuating vibration based on actual applying. It includes the coupling of quadratic damping, viscosity damping, Coulomb damping and nonlinear spring. By combining linear transform, Laplace transform method, the approximate theoretical calculating formulae about mean square value of acceleration, velocity and displacement were deduced. The parameters selection of the isolator was discussed and an optimal design model for selection of parameters was developed. So the study builds a basis for engineering design of the diplex multi-medium coupling isolator.

Keywords: random excitation; diplex multi-medium coupling isolator; mathematical modelling; parameters selection; precision equipment; moving vehicles; attenuating vibration; isolator design; quadratic damping; viscosity damping; Coulomb damping; nonlinear spring.

DOI: 10.1504/IJMSI.2009.025297

International Journal of Materials and Structural Integrity, 2009 Vol.3 No.1, pp.77 - 87

Published online: 18 May 2009 *

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