Priority Applications (1) Application Number CN201410610284.6A Weibull distribution reliability Sequential Compliance Methods based on Monitoring Data all formulate based on this hypothesis of working time obeys index distribution before product bug.But, for most of non-electronic product, in fact only there is 10% obeys index distribution, most obediences or approximate Follow Weibull Distribution.The Probability Rate of Sequence Test of exponential distribution is applied to the non-electronic product of fault Follow Weibull Distribution, result will be too conservative. In reliability compliance test plan, likelihood ratio sequential sampling testing program can make full use of each failure message, and often generation primary fault is just made and once being adjudicated.For the product of very high or very low MTBF (mean time between failures), it is short that likelihood ratio sequential sampling testing program makes than the Censoring of same risk and discrimination ratio or fixed failure number test scheme the time receiving or reject judgement, therefore, in planned cost with adopt sequential sampling testing program in the time.The domestic and international standard about likelihood ratio sequential sampling testing program is as GJB899A-2009 (reliability determination and reception test), MIL-STD-781D (MilitaryStandard Reliability Testing for Engineering Development at present, Qualification, andProduction) etc. The method comprises the steps that firstly, a Weibull distribution shape parameter m is estimated through a similar product or historical use data in a bayes method, and a scale parameter eta 0 (theta 0) corresponding to an upper detection limit of a reliability verification index and a scale parameter eta 1 (theta 1) corresponding to a lower detection limit of the reliability verification index are calculated then, Weibull distribution is converted into the mode of index distribution the Weibull distribution sequential verification test method is derived through an index distribution sequential verification test method, a test scheme can be formulated through the producer risk alpha, the user risk beta, the upper MTBF detection limit theta 0, the lower detection limit theta, the scale parameter eta 0 (theta 0) and the scale parameter eta 1 (theta 1), the failure time Tr is accumulated every time a failure happens in a test, n(t) and a judgment boundary are compared, and receiving judgment or rejection judgment or test continuing can be obtained finally, according to the situation that receiving judgment or rejection judgment cannot be carried out after the test is finished, the existing monitoring data are fully utilized to predicting the remaining life of non-failure test products, and used as new failure time to be judged. The invention discloses a sequential verification test method of Weibull life type product reliability based on monitoring data. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics Priority to CN201410610284.6A priority Critical patent/CN104462757B/en Publication of CN104462757A publication Critical patent/CN104462757A/en Application granted granted Critical Publication of CN104462757B publication Critical patent/CN104462757B/en Status Expired - Fee Related legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Nanjing University of Aeronautics and Astronautics Priority date (The priority date is an assumption and is not a legal conclusion. Nanjing University of Aeronautics and Astronautics Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ![]() ( en Inventor 蔡景 李鑫 肖罗椿 朱贝蓓 陈康 冒慧杰 殷逸冰 刘宸宁 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN201410610284.6A Other languages Chinese ( zh) Google Patents Sequential verification test method of Weibull distribution reliability based on monitoring dataĭownload PDF Info Publication number CN104462757A CN104462757A CN201410610284.6A CN201410610284A CN104462757A CN 104462757 A CN104462757 A CN 104462757A CN 201410610284 A CN201410610284 A CN 201410610284A CN 104462757 A CN104462757 A CN 104462757A Authority CN China Prior art keywords theta eta delta distribution exp Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN104462757A - Sequential verification test method of Weibull distribution reliability based on monitoring data CN104462757A - Sequential verification test method of Weibull distribution reliability based on monitoring data
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