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针对一起特殊APU故障,在对其涡轮轴断裂损伤进行断口分析和对其他零件损伤情况进行综合分析的基础上,通过推演APU故障过程,确定了造成该台APU故障的原因,提出了APU零件尤其是涡轮轴的保护措施。
Aiming at the fault of a special APU together with the analysis of the fracture damage of the turbine shaft and the comprehensive analysis of the damage of other components, the APU failure process was deduced to determine the cause of APU failure. Turbine shaft protection measures.