某飞机APU进/排气门控制盒可靠性研究

对某飞机APU进/排气门控制盒的可靠性进行了分析,综合考虑器件、环境、电路设计等可靠性因素,依据国军标GJB/Z299C-2006《电子设备可靠性预计手册》中提供的方法,通过元器件可靠性预计法对控制盒的可靠性进行预计,并根据一般原理对提高控制盒可靠性的方法进行了探讨。对比及验证表明,控制盒设计合理,可靠性满足主机及系统要求。

Study on reliability of controller for APU inlet/exhaust valves

The reliability of controller the APU inlet/exhaust valves for an aircraft is analyzed. In consideration of the devices′reliability factors such as components,environment and circuit design,and according to the methods provided by the military specifications GJB/Z299C-2006“Electronic Equipment Reliability Prediction Handbook”,reliability of the controller is predicted. The method improving the reliability of the controller is discussed according to general principles. The comparison and verifica-tion results show that the design of the controller is reasonable,and the reliability of the controller can meet the system require-ments.