密封式电磁继电器贮存加速寿命试验方法研究

随着我国航空与空间技术的迅速发展，对密封式电磁继电器可靠性提出了更高的要求。着重研究了密封式电磁继电器在贮存期间的可靠性问题。在分析了贮存条件下电磁继电器失效机理的基础上，提出了一种快速评价其贮存寿命的试验方法，即在恒定应力贮存加速寿命试验方法的设计中，对试验加速应力类型的选择，应力水平及试验样品数量，试验测试参数等进行了详细的分析。论文对密封式电磁继电器贮存加速寿命试验数据进行了处理，并得到了试验样品的贮存寿命预测数值。

Study on the Accelerated Life Test of Storage Life for Sealed Electromagnetic Relays

With the rapid development of aeronautic and space technology, a still higher demand on the reliability level of the sealed electromagnetic relays is put forward. The reliability of the sealed electromagnetic relays during storage period was studied. A test method to estimate the storage life of electromagnetic relays was proposed on the basis of analysis of failure mechanism. The method is characterized by the constant stress accelerated life test. Some of the important factors in the test were analyzed in detail, such as the determinations of the type and level of the accelerated stresses, the number of the test pieces, the test parameters measured and so on. After the accelerated life test, the test data were processed by some methods of life prediction and the extrapolated value of storage life was calculated.