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传动系统是直升机的重要组成部分,针对某型直升机飞行过程中出现的左输入级重点频率振动量值过大现象,通过对大量试飞数据进行统计分析,指出其振动情况随左发动机动力涡轮输出扭矩(GML)的变化规律。
The transmission system is an important part of the helicopter. Aiming at the phenomenon that the amplitude of the key frequency of the left input stage appears too large when a certain type of helicopter is flying, the statistical analysis of a large number of test data indicates that the vibration of the system varies with the left engine power turbine output torque (GML) changes.