Contacting mechanism of nonlinear friction pair ofmetallic rubber and analysis for simulation results

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (7) : 77-81.

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Contacting mechanism of nonlinear friction pair ofmetallic rubber and analysis for simulation results

Li Yu-yan1; Huang Xie-qing2; Song Kai2

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Abstract

From the mechanism of dry-friction damping of metallic rubber, a new mechanical model of nonlinear friction structure element of metallic rubber was put forward. The structural element was made up of axial and radial elastic elements. The two elements not only denoted friction characteristics among wires, but also elastic properties of spiral turns. Based on the mechanical model constructed, using the series connection structure made of many friction pairs, friction contacts between turns were studied. Through simulation for the system made of the structural elements, hysteresis loops were deeply analyzed and studied under different loading for metallic rubber elements. Under static loading, the effects of friction coefficient and friction angle on energy dissipation of metallic rubber were studied, and under dynamic loading the effects of force amplitude, frequency and initial phase on energy dissipation were also studied, which largely reduced the works in the respects of static and dynamic experiments.

Key words

Metallic rubber / Friction pair / Friction coefficient / Friction angle / Hysteresis loop / Static and dynamic forces

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Li Yu-yan;Huang Xie-qing;Song Kai. Contacting mechanism of nonlinear friction pair ofmetallic rubber and analysis for simulation results[J]. Journal of Vibration and Shock, 2011, 30(7): 77-81