Evolvement Rule of Running-in Attractor

Abstract

Abstract: In order to know the dynamic behavior and its change regularity of wear process, the running-in attractor is studied with fractal and chaos theories. Wear tests are conducted and the time series signals of frictional coefficient are collected on an MMW-1 mode friction and wear tester. The forming and disappearing process of the running-in attractor is investigated by the technique of phase-space reconstruction by time-delay. The fractal dimension of the running-in attractor is calculated and its change law is studied with correlation-dimension method. It is found that the running-in process is the forming process of the running-in attractor, the running-in attractor has a high and stable fractal dimension and a "forming-keeping-disappearing" evolvement rule in wear process. The evolvement rule of the running-in attractor is very useful to the identification of running-in state and the prediction of wear progress.

Key words: Attractor, Chaos, Fractal, Phase-space, Running-in

CLC Number:

TH117.2

ZHU Hua;GE Shirong;LÜLiang;LU Binbin. Evolvement Rule of Running-in Attractor[J]. , 2008, 44(3): 99-104.

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Evolvement Rule of Running-in Attractor

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