Fault diagnosis based on wavelet package and Elman neural network for a hydraulic pump

[1] Goumas S K, Zervakis M E. Classification of washing mac hines vibration signals using discrete wavelet analysis for feature extraction . IEEE Trans on Instrumentation and Measurement, 2002, 51(3):497-508 [2] 彭玉华. 小波变换与工程应用[M]. 北京:科学出版社,2002:116-117 Peng Yuhua. Wavelet transformation and engineering design[M]. Beijing:Sci ence Publishing House, 2002:116-117(in Chinese) [3] 胡昌华, 张军波. 基于MABLAB的系统分析与设计——小波分析[M]. 西安: 西安电子科技大学出版社, 2001:209-211 Hu Changhua, Zhang Junbo. System analysis and design based on Matlab—Wavele t analysis[M]. Xi’an:Xi’an Electronic Technology Publishing House, 2001:209 -211(in Chinese) [4] 王少萍. 液压泵计算机辅助测试及故障诊断研究 . 北京:北京航空航天大学自动控制系, 1994 Wang Shaoping. Computer aided test and fault diagnosis to hydraulic pump . Beijing:Dept of Automation Control, Beijing University of Aeronautics and Astro nautics, 1994(in Chinese) [5] 宋友,柳重堪,李其汉.基于小波包分解的早期碰摩故障诊断研究[J]. 北京航空航天大学学报,2003, 29(1):87-90 Song You, Liu Chongkan, Li Qihan. Early rub-impact fault diagnosis based on wavelet packet decomposition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003,29(1):87-90(in Chinese) [6] 翁海娜,房建成,杨功流,等.基于调频高斯小波变换的导航传感器故障诊断[J]. 北京航空航天大学学报,2002, 28(4):477-480 Weng Haina, Fang Jiancheng, Yang Gongliu, et al. Fault diagnosis for naviga tional sensors based on modulated gaussian wavelet transformation [J]. Journal of Beijing University of Aer