对某型辅助动力装置在空中起动不成功现象进行了分析研究。首先从该APU起动特点出发,分析了APU空中起动影响要素,针对空中起动超温故障,逐段分析整个起动过程,通过与同高度起动成功历程曲线进行对比分析,明确故障原因,给出了解决方案。 Analyzes the unsuccessful starting of some auxiliary power plant in the air. Based on the starting characteristics of the APU, this paper analyzes the influencing factors of air start in the APU. According to the over-temperature fault in air starting, the whole starting process is analyzed piece by piece. By comparing with the successful course curve of the same height starting, the cause of the failure is clarified and the solution is given Program.