Modelling and identification of the dynamic behavior of circular wire-cable vibration isolator

WANG Hong-xia;;GONG Xian-sheng; LIU Wei; PAN Fei;

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (23) : 53-57.

PDF(1484 KB)
PDF(1484 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (23) : 53-57.
论文

Modelling and identification of the dynamic behavior of circular wire-cable vibration isolator

  • WANG Hong-xia1,2 ,3, GONG Xian-sheng1,2 LIU Wei1,2 PAN Fei1,2
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Abstract

A circular wire-cable vibration isolator is designed by adopting independent wire rope loops as elastic damping elements. Owing to its unique structure, the isolator exhibits nonlinear elastic stiffness and asymmetric hysteresis dynamic behavior in the tension–compression mode. In the present study, a modified normalized Bouc-Wen model is proposed to describe the hysteretic behaviour of a circular wire-cable vibration isolator. A two-stage identification method is developed for identifying the model parameters. Periodic loading experiments were carried out to validate the proposed model and identification method. The results verify that the proposed model and identification method are effective for accurate description of asymmetric hysteresis dynamic behavior in the tension–compression mode of circular wire-cable vibration isolator. It establishes the foundation for dynamic design method of circular wire-cable vibration isolator.

Key words

circular wire-cable vibration isolator / hysteresis / modified normalized Bouc-Wen model / identification

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WANG Hong-xia;;GONG Xian-sheng; LIU Wei; PAN Fei;. Modelling and identification of the dynamic behavior of circular wire-cable vibration isolator[J]. Journal of Vibration and Shock, 2014, 33(23): 53-57
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