QQ客服 官方微博 反馈留言

浏览/检索结果: 共4条，第1-4条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Fault feature extraction of rotating machinery based on EWT and a weighted multi neighborhood rough set 期刊论文 Zhendong yu Chongji/Journal of Vibration and Shock, 2019, 卷号: 38, 期号: 24, 页码: 235-242 作者:  Wu, Yaochun;  Zhao, Rongzhen;  Jin, Wuyin 收藏  |  浏览/下载：12/0  |  提交时间：2020/11/14 Classification (of information)  Extraction  Iterative methods  Probability  Rotating machinery  Rough set theory  Time domain analysis  Wavelet transforms  Characteristics of vibrations  Empirical wavelet transform(EWT)  Fault feature extractions  Feature selection methods  Multiple neighborhoods  Neighborhood rough sets  Probability of occurrence  Time domain characteristics   Acoustic emission source location for composite plate based on empirical wavelet transform [基于经验小波变换的复合材料板声发射源定位] 期刊论文 Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics, 2018, 卷号: 44, 页码: 1395-1401 作者:  Yuan, M.;  Shang, F.;  Dong, S. 收藏  |  浏览/下载：12/0  |  提交时间：2019/12/30 Acoustic wave velocity  Carbon fibers  Composite materials  Composite structures  Location  Plates (structural components)  Time difference of arrival  Wave propagation  Wavelet transforms  Acoustic emission sources  Acoustic emission techniques  Correlation coefficient  Cross correlations  Empirical wavelet transform (EWT)  Generalized cross correlations  Measurement experiments  Source location  Acoustic emission testing   Application of EWT AR model and FCM clustering in rolling bearing fault diagnosis 会议论文 Harbin, China, July 9, 2017 - July 12, 2017 作者:  Li, Jipu;  Zhao, Rongzhen;  Deng, Linfeng 收藏  |  浏览/下载：0/0  |  提交时间：2020/11/15 Failure analysis  Fault detection  Frequency modulation  Roller bearings  Vibration analysis  Wavelet transforms  AR models  Auto regressive models  Fault diagnosis method  Fault identifications  Fuzzy C mean clustering  Fuzzy C mean clustering (FCM)  High dimensional feature  Locality preserving projections   Short-term wind speed prediction using empirical wavelet transform and Gaussian process regression 期刊论文 ENERGY, 2015, 卷号: 93, 页码: 1456-1466 作者:  Hu, JM;  Wang, JZ 收藏  |  浏览/下载：3/0  |  提交时间：2017/01/12 Gaussian process regression model  Wind speed forecasting  Empirical wavelet transforms (EWT)