摘要
针对长寿命高压继电器小样本的可靠性评估问题,提出了一种基于平均秩次法的可靠性建模方法。在故平均秩次法基本原理的指导下,研究了随机截尾多样本试验下高压继电器故障秩次确定方法。对应用最小二乘法进行可靠性参数估计,应用线性相关系数与D检验法进行拟合性检验,在故障数据同时服从两种分布模型下,引入总均方根误差法进行分布模型优选,识别最优可靠性模型并进行可靠性评估。
Aiming at the reliability evaluation problem of small samples of long-life high-voltage relays,an analysis method of mean rank combined with least squares is proposed.Under the guidance of the basic principle of average rank method,the method of determining the fault rank of high voltage relay under random truncated multiple tests is studied.The least square method is used to estimate the reliability parameters,and the linear correlation coefficient and D-test method is used to test the fit.Under the condition that the fault data are subject to 2 distribution models at the same time,the total root-mean-square error method is introduced to optimize the distribution model,identify the optimal reliability model and conduct reliability evaluation.
作者
刘元治
张长涛
李威
房元
王伯军
Liu Yuanzhi;Zhang Changtao;Li Wei;Fang Yuan;Wang Bojun(Global R&D Center,China FAW Corporation Limited,Changchun 130013)
出处
《汽车文摘》
2025年第6期53-56,共4页
Automotive Digest
基金
吉林省重大科技专项(20220301015GX)。
关键词
高压继电器
小样本
平均秩次法
最小二乘估计
可靠性评估
High voltage relay
Small sample
Average rank method
Least squares estimation
Reliability evaluation
