一种适宜于航空电子类机载设备的可靠性强化试验方法

A Reliability Enhancement Test Method Suitable for Aeronautical Electronic Airborne Equipment

目前我国军机机载电子类设备的可靠性试验主要依赖传统的可靠性模拟试验技术,其存在试验周期长、效率低、耗费大以及试验结果易受综合环境应力准确性的影响等缺点。而可靠性强化试验通过外场加严使用环境中的某类或某几类应力来进行试验,可以快速激发设备的设计缺陷和制造工艺等问题。本文提出一种适宜于军机电子类机载设备的可靠性强化试验方法流程,给出试验应力量值、加载时序、运行流程、故障处理要求和回归验证方法等试验实施细则或要求,并在某型号工程研制中进行工程实践。结果表明:试验效果显著,可显著提高设备的可靠性、节约试验经费和时间。

At present, the military electronics airborne equipment reliability test in China mainly depends on the traditional simulation test technology of reliability, which often shows the shortcomings of long test cycle, low efficiency, high cost and the susceptible experimental results accuracy. And through deteriorating of certain or some kind of stress in field, reliability intensifying test can quickly stimulate equipment design flaws and manu-facturing process. A kind of suitable reliability intensifying test process is put forward 9 which provides the rules of implementation and requirements of the test stress level,load sequence,operation process,troubleshooting and etc. It is used in the engineering practice of a model project. Result shows that the test can significantly im-prove the reliability of equipment, and save the expenditure and time.