基于小波理论的复杂机械振动信号降噪分析

De-noising Vibration Signal of Complex Mechanism Based on Wavelet Theory

摘要: 基于小波理论,针对典型旋转往复式机械——汽车发动机振动信号进行了降噪分析研究,提出了适合这类振动信号降噪的分析方法,并通过对实验数据的分析验证了该方法的正确性和有效性.该研究为对汽车发动机振动信号进行降噪处理,进而对其实施故障诊断提供了可靠的保障.

Abstract: The vibration signal of the STEYR diesel engines has analyzed based on wavelet theory, and a feasible means is put forward for the signal denoising, which has been confirmed to be efficiency and accuracy by the experimentation data. The means provides a feasible technique support for fault Diagnoses of STEYR diesel engines.