Eur. Phys. J. Appl. Phys.
Volume 52, Number 2, November 2010
|Number of page(s)||7|
|Section||Imaging, Microscopy and Spectroscopy|
|Published online||08 October 2010|
Study on characteristic parameters of wear particle boundary
Marine Engineering College, Dalian Maritime University, Dalian, 116026, P.R. China
2 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu, 610500, P.R. China
3 School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, P.R. China
Corresponding author: email@example.com
Revised: 18 January 2010
Accepted: 27 July 2010
Published online: 8 October 2010
As the product of the wear process, the wear particles record the rich information to reflect the state of the equipment's inner abrasion. Analysis of the wear particles in lubricating or hydraulic oils becomes one important branch of diagnosing the wear states of machine parts. Extracting characteristic parameter is an indispensable means to analyse wear particles. In this paper, a method to extract the characteristic parameters of the wear particle boundary based on chaos theory has been discussed. The concept of boundary wave has been firstly conducted, and then based on the Shannon entropy and the theory of phase reconstruction, the concept and the arithmetic of the singular entropy have been conducted. It has been shown that the boundary wave of the wear particles is characterised as chaos, so the singular entropy can be used to describe the complexity of the boundary of the wear particles. Therefore the singular entropy can be considered as one of the characteristic parameters of the wear particles.
© EDP Sciences, 2010
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