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Optimization of distribution model for cnc lathes early failures

  • Changchun University of Technology

科研成果: 书/报告/会议事项章节章节同行评审

摘要

To eliminate early failures of CNC lathes, it is necessary to study the early failure distribution to establish accurate early failure distribution model of CNC lathes. During the modeling process, the same group of failure data obeys Weibull distribution, exponential distribution, super-exponential distribution and gamma distribution at the same time. To optimize the failure distribution model, this paper used "relevant inde x" method by comparing the distribution function curve fitting and determined that this group of failure data fitted Weibull distribution using maximum likelihood estimation method with its shape parameter k 0.8706 and scale parameter b142.6991.

源语言英语
主期刊名Key Engineering Materials
出版商Trans Tech Publications Ltd
107-111
页数5
ISBN(印刷版)9780878493388
DOI
出版状态已出版 - 2009

出版系列

姓名Key Engineering Materials
407-408
ISSN(印刷版)1013-9826
ISSN(电子版)1662-9795

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