基于小波理論的復雜機械振動信號降噪分析

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

摘要: 基于小波理論,針對典型旋轉往復式機械——汽車發動機振動信號進行了降噪分析研究,提出了適合這類振動信號降噪的分析方法,并通過對實驗數據的分析驗證了該方法的正確性和有效性.該研究為對汽車發動機振動信號進行降噪處理,進而對其實施故障診斷提供了可靠的保障.

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.