Research on vehicle computer simulation for double crossed step-stress accelerated life testing

摘要：

A new double stress accelerated life testing(ALT) method for solving reliability evaluation problem of electronic equipments with high reliability and long life is proposed, which is named double crossed step-stress testing, including double crossed step-down-stress testing and double crossed step-up-stress testing. In Weibull distribution, the theoretic model of the testing method is established and the parameter-ratio, which denotes the testing efficiency, is discussed through 10 000 times Monte-Carlo simulation. The simulation results indicate that when m>l, double crossed step-down-stress testing has higher efficiency than double crossed step-up-stress testing, when m<l, the result is opposite. So that the using condition of double crossed step stress testing was ascertained. After that, equipment reliability was evaluated by using simulation testing data. All these prove that the testing method is efficient and feasible, when applied in reliability assessment of long life electronic equipment.

关键词： accelerated life testing (ALT) double crossed step-stress Monte-Carlo simulation statistical analysis reliability evaluation

作者: Zhan-qiang JIA Jin-yan CAI Yu-ying LIANG Qi CHEN

作者单位: Department of Optics and Electrics Engineering,Ordnance Engineering College,Shijiazhuang 050003 China

会议类型: 国际会议

会议名称: 2008 International Conference on Risk and Relianility Management(2008风险与可靠性管理国际会议)

会议地点: 北京

会议语种:英文

页码: 694-698

在线出版日期: 2008-11-10（万方平台首次上网日期，不代表论文的发表时间）