Complex Response characteristic Research of Passive Metal-Rubber Vibration Isolation System

LI Yulong, BAI Hongbai, HE Zhongbo, LU Chunhong

Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (4) : 87-92.

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PDF(1727 KB)
Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (4) : 87-92.

Complex Response characteristic Research of Passive Metal-Rubber Vibration Isolation System

  • LI Yulong, BAI Hongbai, HE Zhongbo, LU Chunhong
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Abstract

The complex response of metal rubber vibration isolation system was studied. The hysteretic restoring force was simplified by linear equivalent based on double broken line constitutive relation of the shock absorber. The mathematical model of the system was built, and the state equation was derived. The dynamic test of the shock absorber was done, and the physical parameters of the shock absorber were identified by using the test data. The numerical simulation of the system was done by using the physical parameters, the bifurcation diagrams in terms of excitation force and frequency were obtained, and the parameters value range of the system was determined. The characteristic of single frequency input caused multiple or broadband frequency domain of the Metal-Rubber vibration isolation system was analyzed. Finally, the analysis results were verified by experiment.

Key words

Metal rubber / Nonlinear / vibration isolation system / Response characteristic / Chaos

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LI Yulong, BAI Hongbai, HE Zhongbo, LU Chunhong. Complex Response characteristic Research of Passive Metal-Rubber Vibration Isolation System[J]. Journal of Vibration and Shock, 2016, 35(4): 87-92

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