RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION
In order to realize the rapid reliability evaluation of long-life and high reliability products at a normal stress level, the reliability statistical model of Arrhenius—Weibull was established, by using the Weibull distributions products with the consistent failure mechanism and a log-linear acceler...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.03.021 |
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| author | FENG XueFeng TANG JiaYin TAN QiTao |
| author_facet | FENG XueFeng TANG JiaYin TAN QiTao |
| author_sort | FENG XueFeng |
| collection | DOAJ |
| description | In order to realize the rapid reliability evaluation of long-life and high reliability products at a normal stress level, the reliability statistical model of Arrhenius—Weibull was established, by using the Weibull distributions products with the consistent failure mechanism and a log-linear acceleration life test model between characteristic life and stress level. The minimum variance of the product median lifetime estimate at normal stress level as optimum object was considered, the number and quantity of test stress level, samples allocation proporation and censoring time at each stress level are determined as design variables, put forward a reliability optimum scheme of time-censoring constant-stress ALT（CSALT） for weibull distributions. The Fisher Information Matrix is obtained for constructing asymptotic confidence intervals for the model parameters. As the example analysis shows that the reliability optimum scheme of CSALT is effective. |
| format | Article |
| id | doaj-art-351491e0996d4f94957f2052a0a15287 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-351491e0996d4f94957f2052a0a152872025-01-15T02:29:53ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-014163364030604790RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTIONFENG XueFengTANG JiaYinTAN QiTaoIn order to realize the rapid reliability evaluation of long-life and high reliability products at a normal stress level, the reliability statistical model of Arrhenius—Weibull was established, by using the Weibull distributions products with the consistent failure mechanism and a log-linear acceleration life test model between characteristic life and stress level. The minimum variance of the product median lifetime estimate at normal stress level as optimum object was considered, the number and quantity of test stress level, samples allocation proporation and censoring time at each stress level are determined as design variables, put forward a reliability optimum scheme of time-censoring constant-stress ALT（CSALT） for weibull distributions. The Fisher Information Matrix is obtained for constructing asymptotic confidence intervals for the model parameters. As the example analysis shows that the reliability optimum scheme of CSALT is effective.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.03.021Constant-stress accelerated life testAccelerated life test modelOptimum designReliability |
| spellingShingle | FENG XueFeng TANG JiaYin TAN QiTao RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION Jixie qiangdu Constant-stress accelerated life test Accelerated life test model Optimum design Reliability |
| title | RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION |
| title_full | RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION |
| title_fullStr | RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION |
| title_full_unstemmed | RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION |
| title_short | RELIABILITY OPTIMUM DESIGN OF CONFIDENCE SAMPLES FOR CONSTANT-STRESS ACCELERATED LIFE TEST BASED ON WEIBULL DISTRIBUTION |
| title_sort | reliability optimum design of confidence samples for constant stress accelerated life test based on weibull distribution |
| topic | Constant-stress accelerated life test Accelerated life test model Optimum design Reliability |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.03.021 |
| work_keys_str_mv | AT fengxuefeng reliabilityoptimumdesignofconfidencesamplesforconstantstressacceleratedlifetestbasedonweibulldistribution AT tangjiayin reliabilityoptimumdesignofconfidencesamplesforconstantstressacceleratedlifetestbasedonweibulldistribution AT tanqitao reliabilityoptimumdesignofconfidencesamplesforconstantstressacceleratedlifetestbasedonweibulldistribution |