Contact Analysis for Joint Interfaces of Machine Tools Based on a 3-D Anisotropic Asperity Model

Abstract:

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In this paper, a 3-D contact model for anisotropic rough surfaces based on 3-D statistically measurements is established and finite element contact analysis is conducted. The average height of the asperity (h), the average summit distances between two neighboring peaks of asperities (Sx and Sy) are selected as the characterized parameters of the rough surface. Finite element simulation results show that the normal contact pressure has an exponential relation with the normal deformation and an exact linear relationship between the normal deformation and the real contact pressure of the surfaces is obtained. At last, the normal contact stiffness of the joint interface is obtained empirically with the exponential relationship assumption.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

114-120

DOI:

10.4028/www.scientific.net/AMR.189-193.114

Citation:

H. T. Liu et al., "Contact Analysis for Joint Interfaces of Machine Tools Based on a 3-D Anisotropic Asperity Model", Advanced Materials Research, Vols. 189-193, pp. 114-120, 2011

Online since:

February 2011

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Price:

$35.00

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