Experimental Study on Friction Damping Characteristics of Metallic Materials with Non-Conforming Contact

Jun Wu; Ming Hui Zhang; Di Zhang; Yong Hui Xie

doi:10.4028/www.scientific.net/AMM.217-219.2402

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Experimental Study on Friction Damping...

Experimental Study on Friction Damping Characteristics of Metallic Materials with Non-Conforming Contact

Abstract:

A rig was built to study the friction damping characteristics of metallic materials with non-conforming contact. The hysteresis curves which show the relationship between the tangential force and relative displacement of the contact between a spherical surface and a flat surface were measured. The effects of the vibration amplitude on the friction damping characteristics of the contact were investigated. The results show that both the amplitude of friction force and the friction coefficient increase as the vibration amplitude increases at first and then reach to a constant value. The equivalent stiffness decreases as the vibration amplitude increases, while the equivalent damping increases at first and then decreases slowly. And both of them trend to constants when the vibration amplitude is larger than 4.8μm.

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Periodical:

Applied Mechanics and Materials (Volumes 217-219)

Pages:

2402-2405

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.217-219.2402

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Online since:

November 2012

Authors:

Jun Wu, Ming Hui Zhang, Di Zhang, Yong Hui Xie

Keywords:

Experimental Study, Friction Damping, Hysteresis Curve, Non-Conforming Contact

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