带温控装置的机载外挂设备挂飞可靠性试验方法

Test Method for Hanging Reliability of Airborne External Equipment with Temperature Control Device

目的制定安装于带温控装置吊舱内的机载外挂电子设备挂飞可靠性试验剖面,并提出一种安装于带温控装置吊舱内的机载外挂电子设备挂飞可靠性试验方法。方法结合机载外挂电子设备的典型任务剖面及其复杂多样的环境条件,以某机载侦察相机为例,给出带温控装置吊舱内的机载外挂电子设备可靠性鉴定试验中试验方案的选择依据,然后根据GJB 899A—2009中的温度应力、振动应力简化处理原则和典型任务剖面的持续时间及其占比,得到温度、振动应力条件,并合成挂飞可靠性试验剖面。结果使用该方法对某机载侦察相机的温度、振动应力进行处理,得到了带温控装置的吊舱内的机载外挂电子设备挂飞可靠性试验剖面。结论提出的带温控装置吊舱内的机载外挂电子设备挂飞可靠性试验剖面设计方法,为安装于带温控装置的吊舱内的机载外挂电子设备开展可靠性鉴定试验提供了指导。

The paper intends to develop a reliability test profile and proposes a reliability test method for airborne external electronic equipment mounted in a pod with temperature control device.Based on the typical mission profile of airborne exter-nal electronic equipment and its complex and diverse environmental conditions,taking an airborne reconnaissance camera as an example,the selection basis of test scheme in the reliability qualification test of airborne external electronic equipment in the pod with temperature control device was given.Then,in line with the simplified treatment principle of temperature stress and vibration stress in GJB899A-2009 and the duration and proportion of typical mission profiles,to obtain the temperature and vi-bration stress condition and synthesize the hanging reliability test profile.The method was used to deal with the temperature and vibration stress of an airborne reconnaissance camera,and the reliability test profile of airborne external electronic equipment in a pod with temperature control device was obtained.The proposed method of reliability test profile design for airborne external electronic equipment mounted in a pod with temperature control device can provide guidance for reliability qualification test of airborne external electronic equipment mounted in a pod with temperature control device.