摘要
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。
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 an- alyzed to form the observed sample data, and the curves of the probability density distribution function and the cu- mulative 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 distribu- tion 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.
作者
赵金萍
熊君星
刘建胜
Zhao Jinping Xiong Junxing Liu Jiansheng(College of Science and Technology, Nanchang University, Nanchang 330029 School of Mechanical and Electronic Engineering, Nanchang University, Nanchang 330031)
出处
《高技术通讯》
北大核心
2017年第4期359-363,共5页
Chinese High Technology Letters
基金
国家自然科学基金(51565036)
江西省科技厅科技支撑项目(20123BBE50083)
江西省教育厅科学技术研究项目(GJJ150069)资助
关键词
故障数据
运行可靠性
可靠性评估
failure data, operational reliability, reliability assessment
作者简介
赵金萍,女，1978年生，硕士，副教授；研究方向：计算机模拟仿真；E-mail：350181911@qq．com
