機械故障診斷的匹配時頻分析原理及其應(yīng)用研究
發(fā)布時間:2018-11-11 13:28
【摘要】:正本論文以航空發(fā)動機等關(guān)鍵機械裝備運行安全保障的國家重大需求為驅(qū)動,針對傳統(tǒng)時頻分析方法無法有效滿足機械故障診斷中強時變非平穩(wěn)特征提取以及微弱故障特征增強的問題,本文從匹配機械振動信號中強時變非平穩(wěn)信號時頻結(jié)構(gòu)的角度,深入研究了機械故障診斷的匹配時頻分析原理。
[Abstract]:The original paper is driven by the major national demand for the safety and security of key mechanical equipment such as aeroengines. The traditional time-frequency analysis method can not effectively meet the problems of strong time-varying non-stationary feature extraction and weak fault feature enhancement in mechanical fault diagnosis. In this paper, the time-frequency structure of the strong time-varying non-stationary signal in matching mechanical vibration signal is analyzed from the point of view of matching the time-frequency structure of the strong time-varying non-stationary signal. The principle of matching time frequency analysis for mechanical fault diagnosis is studied.
【作者單位】: 西安交通大學(xué);
【分類號】:TH17
[Abstract]:The original paper is driven by the major national demand for the safety and security of key mechanical equipment such as aeroengines. The traditional time-frequency analysis method can not effectively meet the problems of strong time-varying non-stationary feature extraction and weak fault feature enhancement in mechanical fault diagnosis. In this paper, the time-frequency structure of the strong time-varying non-stationary signal in matching mechanical vibration signal is analyzed from the point of view of matching the time-frequency structure of the strong time-varying non-stationary signal. The principle of matching time frequency analysis for mechanical fault diagnosis is studied.
【作者單位】: 西安交通大學(xué);
【分類號】:TH17
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