Multiple Objective Test Design for Accelerated Destructive Degradation Tests  

作　　者：黄硕 杨军 彭锐 赵宇 

机构地区：[1]School of Reliability and Systems Engineering,Beihang University [2]Dongling School of Economics and Management,University of Science and Technology

出　　处：《Journal of Donghua University(English Edition)》2015年第6期954-956,共3页东华大学学报（英文版）

摘　　要：Accelerated destructive degradation tests(ADDTs)are powerful to provide reliability information in the degradation processes with destructive measurements.In order to carry out an ADDT efficiently,both the estimation precision of parameters and the test cost should be considered.On the basis of the given degradation model and failure criterion,a multiple-objective optimization model for the design of ADDTs is proposed.Under constrains of the maximum measurement time,the total sample size and the number of stress levels,a comprehensive target function is suggested to reflect both the precision of lifetime estimation and total cost,and the optimal test plan is obtained,which is composed by optimal choices for samples size,measurement frequency,and the number of measurements at each stress level.A real example is illustrated to demonstrate the implementation of the proposed approach.Accelerated destructive degradation tests（ADDTs）are powerful to provide reliability information in the degradation processes with destructive measurements.In order to carry out an ADDT efficiently,both the estimation precision of parameters and the test cost should be considered.On the basis of the given degradation model and failure criterion,a multiple-objective optimization model for the design of ADDTs is proposed.Under constrains of the maximum measurement time,the total sample size and the number of stress levels,a comprehensive target function is suggested to reflect both the precision of lifetime estimation and total cost,and the optimal test plan is obtained,which is composed by optimal choices for samples size,measurement frequency,and the number of measurements at each stress level.A real example is illustrated to demonstrate the implementation of the proposed approach.

关 键 词：accelerated destructive degradation tests(ADDTs) highly reliable products multiple objectives test cost asymptotic variance 

分 类 号：TB114.3[理学—概率论与数理统计]