加速寿命试验是解决高可靠、长寿命产品可靠性评估等问题的重要加速试验技术。传统的寿命试验方法需耗费大量的时间与成本,而加速寿命试验则通过提高应力水平来加速产品性能衰退,在可以接受的时间内得到有效的试验数据,并预测出产品在正常应力下的寿命。介绍了加速寿命试验产生的背景、基本概念、基本假设、基本理论和具体实现步骤,并以某机载计算机为例,说明了加速寿命试验的应用过程。 Accelerated life test is an important accelerated test technique to solve the problems of high reliability and long life product reliability evaluation. While traditional life testing methods require significant time and cost, accelerated life testing accelerates product performance degradation by increasing stress levels, obtaining valid test data at an acceptable time and predicting product life under normal stress . The background, basic concepts, basic assumptions, basic theories and concrete steps of accelerated life testing are introduced. Taking an on - board computer as an example, the application of accelerated life testing is illustrated.