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针对某型航空发动机起动过程中,高压转子转速N2达到30%左右时,低压转子出现转速N1卡滞(转速小于4%)故障、低压涡轮后温度T6出现超温故障的问题,结合试车数据分析了低压转子卡滞故障的特征,建立了低压转子卡滞的故障树,以故障发动机与未发生故障发动机的相关数据作为样本空间对风扇位置卡滞分析与低涡轮位置卡滞分析,最终确定低压转子卡滞故障的主要原因和解决措施。
Aeroengine starting process for a certain type, when the high-pressure rotor speed N2 reaches 30%, low-speed rotor speed N1 stuck (speed less than 4%) failure, low temperature turbine temperature T6 over-temperature failure problems, combined with the test data analysis The characteristics of low-voltage rotor stuck fault were established, and a fault tree of low-voltage rotor stuck was established. Based on the analysis of the fan position and the low turbine position, the relevant data of the faulty engine and the non-failed engine were taken as the sample space, The Main Causes of Rotor Stagger Faults and Solutions.