Study Machine Tool Spindle Performance Reliability Based on Bayes Method

Abstract

Abstract: With the development of high precision machine tool, the reliability requirement is higher and higher for machine tool spindle. Reliability evaluation of spindle based on accelerated life testing is becoming a hot spot of research, and how to improve the precision of evaluation is one of the most important issues. According to the Weibulldistribution characteristic of machine tool spindle reliability, the spindle accelerated life reliability was studied by using the Bayes method. Due to the environment difference between the accelerated test load and the actual working load. The Bayes theory which used the environment difference factor, was introduced to calculate spindle reliability and to get higher accuracy assessment. The method effectiveness was proved by the Monte-Carlo simulation and experiment research, and it provides theoretical basis and solution for the spindle reliability assessment.

Key words: machine tool spindle, Bayes, environmental difference factor, reliability

CLC Number:

TH123

Chi Yulun, Li Haolin. Study Machine Tool Spindle Performance Reliability Based on Bayes Method[J]. Journal of System Simulation, 2016, 28(7): 1667-1672.

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