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Hilbert-Huang轉換及類神經網路結合運用於非穩態振動信號之故障診斷

Fault Diagnosis for Nonstationary Vibration Signal Using Combined Hilbert-Huang Transform and Neural Network

摘要


本文以Hilbert-Huang轉換方法應用於非穩態振動信號之故障診斷,先以經驗模態分解將振動信號轉換到固有模態函數分量,再使用Hilbert轉換得到瞬時振幅及瞬時頻率,以時頻函數呈現出不同類型信號的能量分佈,最後針對各固有模態函數分量之瞬時振幅取能量特徵,輸入至倒傳遞類神經網路中,實現人工智慧識別故障狀態,本文並以實測驗證所提方法的可行性。

並列摘要


The paper applies Hilbert-Huang Transform (HHT) in the vibration signals by the empirical mode decomposition (EMD), and the data can be decomposed into several intrinsic mode functions (IMFs). With the Hilbert transform (HT), the presentation of the instantaneous frequencies and amplitude that is a time-frequency-energy distribution. The energy features is excited from each intrinsic mode function and entered the back-propagation neural network to prove the intelligence fault diagnosis.

被引用紀錄


林奕圻(2005)。模糊控制應用於線切割放電加工厚度變化工件之研究〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2005.02886
Chiu, W. Y. (2010). 最佳化方法在通訊系統中之應用 [doctoral dissertation, National Tsing Hua University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0016-1901201111412069
Huang, P. R. (2012). 從人因的觀點評估遊戲式學習 [master's thesis, National Central University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0031-1903201314450794

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