| 高可靠性产品的等效试验技术及可靠性评估 |
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| 引用本文： | 李超,王金诺,羊海涛.高可靠性产品的等效试验技术及可靠性评估[J].机械科学与技术(西安),2004,23(7):876-878,882. |
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| 作者姓名： | 李超 王金诺 羊海涛 |
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| 作者单位： | [1]西南交通大学机械工程学院，成都610031 [2]中国工程物理研究院结构力学研究所，绵阳621900 |
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| 基金项目： | 国防预先研究基金项目资助 |
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| 摘 要： | 阐述了加速等效试验技术的基本原理和方法。研究了采用过载系数控制加速随机振动试验的实现手段。给出了过载系数上限的经验确定方法和试验时间等效换算法。针对疲劳寿命服从两参数威布尔或对数正态分布的情况 ,提出了两种适用于小样本、零失效的可靠性评估方法 :疲劳寿命分散系数法和可靠度下限法
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| 关 键 词： | 加速等效试验 过载系数 小子样 零失效 可靠性评估 |
| 文章编号： | 1003-8728(2004)07-0876-03 |
Accelerated Mission Test Technology and Reliability Evaluation for Highly Reliable Components |
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| LI Chao ,WANG Jin nuo ,YANG Hai tao.Accelerated Mission Test Technology and Reliability Evaluation for Highly Reliable Components[J].Mechanical Science and Technology,2004,23(7):876-878,882. |
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| Authors: | LI Chao WANG Jin nuo YANG Hai tao |
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| Affiliation: | LI Chao 1,2,WANG Jin nuo 1,YANG Hai tao 2 |
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| Abstract: | The basic theory and method of accelerated mission life test are presented. Accelerated random vibration test by overload factor controlling is studied.At the same time, the problem of maximum overload factor is discussed and mission time computing is acquired. When fatigue life follows two parameter Weibull distribution or lognormal distribution, fatigue life scatter factor method and minimum reliability method are proposed for evaluating component reliability with small samples and zero failure. |
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| Keywords: | Accelerated mission test Overload factor Small samples Zero-failure Reliability evaluation |
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