论文部分内容阅读
在分析缸盖振动信号时域和频域特征的基础上,详细地研究了气门间隙异常对缸盖振动信号时域和频域特征的影响,并利用时域和频域的变化诊断配气机构的故障,提出了用气门关闭时刻改变量定量诊断气门异常间隙的分析方法。
Based on the analysis of the vibration characteristics of cylinder head in time and frequency domain, the effects of valve clearance anomalies on the vibration characteristics of cylinder head in time and frequency domains are studied in detail. And the gas distribution mechanism The method of quantitatively diagnosing the abnormal valve clearance by using the valve closing moment variation was put forward.