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wen du ying li xia dong che zu lian jie qi jia su shi yan yu shou ming yu ce
Author(s): 
Pages: 1-4+37
Year: Issue:  2
Journal: Electric Locomotives & Mass Transit Vehicles

Keyword:  连接器维纳过程加速试验寿命预测极大似然法;
Abstract: 为预测连接器的寿命趋势,减少器件检修时不必要的更换,文章以某型车端高压连接器为研究对象,以连接器的接触电阻退化作为参数指标,通过恒定温度应力加速退化实验获得其性能退化数据。利用阿伦尼斯模型描述样品寿命与温度之间的关系,使用逆高斯分布描述寿命函数,采用极大似然估计法对连接器的接触电阻性能退化数据进行数理统计,求解模型参数,对连接器进行了寿命预测,对其可靠性检测工艺及其加速寿命试验相关技术进行了研究。
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