内燃机实时无损故障诊断

NONDESTRUCTIVE REAL TIME FAULT DIAGNOSIS OF INTERNAL COMBUSTION ENGINES

主要叙述在内燃机不停机的情况下 ,通过选择恰当的传感器 ,改进传感器的安装方法和合理选择测点来提取机器特征信号。还对提取出的某信号进行具体计算分析 。

The character signals of an internal combustion engine in operation were extracted by choosing appropriate sensor, improving the mounting method for the sensor and selecting test point reasonably. A specific signal extracted was calculated and analysed and a corresponding criterion for fault diagnosis was set up.