Wavelet Approximate Entropy and Its Application in Fault Diagnosis
Approximate Entropy is a new concept which can measure the irregularity of time series and has many advantages in signal analysis. When equipment has fault, its vibration signal will become more complex than that in normal condition. Then the ApEn of fault signal will be larger than that in normal condition. Approximate Entropy combining with Wavelet are used in mechanical fault diagnosis. Application indicates that the method described in the paper is a good way in quantify the complexity of signals, and can distinguish faults changing degree, thereby providing an effective technology for condition monitoring and fault diagnosis of mechanical equipment.
Wavelet Appropriate Entropy fault diagnosis1
HU Hongying KANG Jing YIN Fuliang
School of Electronics and Information Engineering, Dalian University of Technology, Dalian 116023, C School of Electromechanical Information Engineering, Dalian Nationalities University, Dalian 116600, School of Electronics and Information Engineering, Dalian University of Technology, Dalian 116023, C
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）