Research on Characteristics of Special Nonlinear Vibration System

Shu Yong Liu; Qing Chao Yang; Shi Jian Zhu; Xiu Lei Wei

doi:10.4028/www.scientific.net/AMM.724.213

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 724Research on Characteristics of Special Nonlinear...

Research on Characteristics of Special Nonlinear Vibration System

Abstract:

The characteristics of quasi-zero stiffness(QZS) system with nonlinear positive and negative stiffness is researched. A modified QZS model with nonlinear spring element is established and the stiffness curves are obtained based on the analysis of relationship between spring force and displacement. A non-dimensional form of QZS is deduced to discover its essential laws, and simulation is presented with different nonlinear springs. Then the force transmissibility of QZS is verified with the experiment, which shows that the QZS isolation performance is better than the linear one in the low frequency band, and there exists no resonant peak in this system.

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Periodical:

Applied Mechanics and Materials (Volume 724)

Pages:

213-217

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.724.213

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Online since:

January 2015

Authors:

Shu Yong Liu, Qing Chao Yang*, Shi Jian Zhu, Xiu Lei Wei

Keywords:

Nonlinear Spring Element, Quasi-Zero Stiffness, Stiffness Curves

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* - Corresponding Author

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