in this paper the statistical simulation method is used to extract the fault features of engine parts and fuel system from corresponding engine sound and oil pressure fluctuation signals.
运用统计模拟的方法,提取发动机信号的故障特征,并给出这些特征值的置信区间,实现了故障的定量诊断。
by mean of reason analysis on often shut down and trip of hydrogen compressor, the main reason of oil pressure fluctuation and shut down were caused by protection failure of spare oil pump.