Nonlinear Dynamic Analysis for the New Whole-Spacecraft Passive Vibration Isolator

Author:

Tan Li Jun1,Fang Bo1,Zhang Jie Jie1,Huang Wen Hu1

Affiliation:

1. Harbin Institute of Technology

Abstract

The nonlinear vibration analysis related to viscoelastic damper is investigated for the new whole-spacecraft passive vibration isolator. The stepped sinusoidal sweep test is performed and the results reveal the nonlinearity of the system. The nonlinear motion equation is developed. The frequency response equation is derived by the method of harmonic balance. The experiment of various excitation levels are carried out contrasting with numerical simulations. The nonlinear influence factors to the vibration isolation system are argued and the identification results explain the effect parameters on the performance of the vibration isolator. The research work is of significant implications for the analysis and design of passive vibration isolator for a wide range of practical applications.

Publisher

Trans Tech Publications, Ltd.

Reference6 articles.

1. C. M. Harris, A.G. Piersol, Shock and Vibration Handbook, McGraw-Hill, New York, (2002).

2. Y. Chen, B. Fang. Performance analysis of the new whole-spacecraft isolator, Journal of Astronautics. 28(2007)986~989.

3. C. D. Johnson, P. S. Wilke. Protecting satellites from the dynamics of the launch environment, AIAA Space 2003 Conference and Exposition, Long Beach, CA, Sep. 23-25(2003).

4. J. Zhang, Y. Chen. Review of the whole-spacecraft isolation technique, Acta Aeronautica ET Astronautica Sinica. 26(2005) 179-183.

5. Y. Q. Chu, C. Y. Li. Analysis of Nonlinear Vibration, Beijing Institute of Technology, Bei Jing, (1996).

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