期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 62, 期 10, 页码 6606-6615出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2015.2463767
关键词
Acoustic emission (AE); rolling element bearings; size evaluation; spall; squared envelope spectrum
资金
- National Natural Science Foundation of China [51335006]
- Beijing Natural Science Foundation [3131002]
- Youth Foundation of University [2015QNJJ032]
The size of the spalling area has a significant influence on the operation performance and the remaining useful life of rolling element bearings. Therefore, spall size estimation is of great importance to the bearing performance degradation assessment and the life prediction. In this paper, the acoustic emission (AE) signal is used to evaluate the size of a single spall, considering the sensitivity of the AE signal to the incipient fault detection. First, based on the hypothesis that the AE signal is composed of two events for each passage of the rolling element across the spall, an analytical model, named as dual-impulse re sponse model, is developed to describe the AE signal. Then, an averaged dual-impulse interval determining method is proposed to evaluate the spall size. Finally, simulations and experiments are carried out to validate the proposed model and method. It is indicated that the proposed model describes the collected AE signals more satisfactorily than the traditional vibration model involving only a single-impulse response. Compared with the method performed by averaging real cepstra of the dual-impulse segments, the proposed method is more powerful in the inner and outer spall size estimation tests.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据