基于故障数据的设备运行可靠性分析与评估

基于故障数据,对设备运行可靠性进行了分析与评估。对某汽车制造企业的一台卧式加工中心的故障数据进行了统计与分析,形成观测样本,并拟合出了设备故障间隔时间的概率密度分布函数和累计分布函数曲线,从而推断得出其分布规律可能服从威布尔分布。然后通过对威布尔分布函数相关性进行检验,验证了该设备的故障间隔时间分布服从威布尔分布。最后根据统计结果计算得出了该设备的各项可靠性评估指标。

Equipment's operation reliability analysis and assessment based on failure data

The study focused on equipment''s operating reliability analysis and assessment based on equipment''s failure data.The failure data of an automobile manufacturing enterprise''s horizontal machining center were statistically analyzed to form the observed sample data, and the curves of the probability density distribution function and the cumulative distribution function of the equipment''s failure interval are fitted out, so the failure distribution law was deduced that it maybe obey a Weibull distribution.Then through the test of the correlation of the Weibull distribution function, it was confirmed that the fault interval distribution of the equipment obeys the Weibull distribution.Finally, according to the statistical results, the reliability assessment indexes of the equipment were obtained.