RELIABILITY ALLOCATION OF CNC LATHE BASED ON EDGEWORTH SERIES METHOD AND DATE ENVELOPMENT ANALYSIS

ZHANG YiMin; JIA JingCun; HUANG XianZhen

doi:10.16579/j.issn.1001.9669.2016.01.014

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RELIABILITY ALLOCATION OF CNC LATHE BASED ON EDGEWORTH SERIES METHOD AND DATE ENVELOPMENT ANALYSIS

更新时间：2022-09-22

- RELIABILITY ALLOCATION OF CNC LATHE BASED ON EDGEWORTH SERIES METHOD AND DATE ENVELOPMENT ANALYSIS
- Journal of Mechanical Strength Vol. 38, Issue 1, Pages: 69-73(2016)
- 作者机构：
  
  1. 东北大学机械工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2016.01.014
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ZHANG YiMin, JIA JingCun, HUANG XianZhen. RELIABILITY ALLOCATION OF CNC LATHE BASED ON EDGEWORTH SERIES METHOD AND DATE ENVELOPMENT ANALYSIS. [J]. 38(1):69-73(2016)
DOI：

ZHANG YiMin, JIA JingCun, HUANG XianZhen. RELIABILITY ALLOCATION OF CNC LATHE BASED ON EDGEWORTH SERIES METHOD AND DATE ENVELOPMENT ANALYSIS. [J]. 38(1):69-73(2016) DOI： 10.16579/j.issn.1001.9669.2016.01.014.

摘要

基于实际生产中某国产系列数控车床的故障信息,进行车床整机的可靠性指标分配。引入Edgeworth级数法将故障数据变量展开成标准正态分布,进而求得可靠度,并用数据拟合方法进行检验,分布曲线相似度较好。对各个子系统运用Edgeworth级数法求得子系统的可靠度,从故障信息角度对影响车床可靠性的三种主要因素进行分析,引入数据包络分析法(DEA)建立了车床整机可靠度的分配模型,从而进行数控车床的可靠性指标分配。基于产品实际故障信息,该分配法更具实际应用性,能较好地改善可靠性的再分配问题。

Abstract

The reliability of CNC lathe was allocated based on the failure information of CNC lathe. It used Edgeworth series method to expand the fault data into standard normal variable expansion to obtained the reliability. Tested with data fitting method,the distribution curve of Edgeworth was well resembled. To obtain subsystem reliabilities,the Edgeworth series method was introduced. Concentrating three kinds of influence factors from the perspective of fault information,the allocation model based on Date Envelopment Analysis（ DEA） was proposed. Based on failure information of CNC lathe,this method was considerably practical to improve the redistribution of the machine’s reliability.

关键词

数控车床可靠性分配Edgeworth级数CCR模型数据包络分析法

Keywords

CNC latheReliability allocationEdgeworth series methodCCR modelDate Envelopment Analysis

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