Title: Modelling of rubber mounts and applications for time response analysis of dynamic systems including elastomerics

Authors: Xiao-Yong Pan, Guo-Zhong Chai

Addresses: The MOE Key Laboratory of Mechanical Manufacture and Automation, Zhejiang University of Technology, Hangzhou 310014, PR China. ' The MOE Key Laboratory of Mechanical Manufacture and Automation, Zhejiang University of Technology, Hangzhou 310014, PR China

Abstract: The dynamic characteristics of a Rubber Mount (RM) are dependent on preload, excitation amplitude and excitation frequency. In this paper, a nonlinear model for modelling the dynamic performances of a RM is proposed based on the assumption that the force of a RM sustained is a superposition of elastic force, friction force and viscoelastic force. The methods for estimating the model parameters are presented in detail. The time response for a single-degree-of-freedom system using the proposed model and the parameter identification method are estimated, and the calculated displacement vs. time relation for the mass agree well with the experiment data, which validates the model and the parameter identification method.

Keywords: rubber mounts; fractional derivative models; generalised friction model; hyperelastic material; time domain response; dynamic systems; elastomerics; vehicle design; nonlinear models; modelling; elastic force; friction force; viscoelastic force; parameter identification; vibration isolation; displacement.

DOI: 10.1504/IJVD.2009.024957

International Journal of Vehicle Design, 2009 Vol.49 No.4, pp.259 - 274

Published online: 05 May 2009 *

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