The Research on the Dynamic Characteristic of Rubber Isolator

Abstract:

This paper aims at to study the damping ratio and nonlinear stiffness property of rubber isolator effect on vibration response under different excitation level and temperature. By the means of experiment, the curves of amplitude-frequency of rubber isolator were obtained. Based on the experimental results, the damping ratio was ascertained by the method of half power point. A single freedom mechanics model that describes the isolated system was built, and the equation of frequency response deduced and solved by harmonic balance method. Furthermore, the effects of nonlinear factor of stiffness effect on vibration response were analyzed. The precision of the approximation that solved by harmonic balance method was validated using Runge-Kutta method. It is indicated that the equation of frequency-response can be used to describe the property of frequency-response of rubber isolator.

• Periodical: Applied Mechanics and Materials (Volumes 152-154)
• Pages: 542-547
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.152-154.542
• Online since: January 2012
• Authors: De Bao Han
• Keywords: Damping Ratio, Harmonic Balance Method, Rubber Isolator, Vibration Property

References

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DOI: 10.1016/j.jcp.2005.10.026