Conventional monitoring on the operation parameters of thrust bearing is limited to oil temperature, pad temperature, oil film pressure and film thickness. The important parameters including thrust runner undulation, degree and position of thrust pad non-levelness, degree and position of non-perpendicularity between thrust runner and main shaft cannot be obtained. In view of this, a novel online vibration monitoring system for thrust bearing is proposed. The system is expounded in details, the key technologies of data processing are given, and the quantitative descriptions of thrust bearing’s status are obtained. The system has application and popularization value with strong versatility and high precision.
JIANG Xue-wen
. Design and Application of Online Vibration Monitoring System for the Thrust Bearing of Hydrogenerator[J]. Journal of Changjiang River Scientific Research Institute, 2014
, 31(7)
: 99
-102,108
.
DOI: 10.3969/j.issn.1001-5485.2014.07.019
[1] 刘 娟,潘罗平,桂中华,等.国内水电机组状态监测和故障诊断技术[J].大电机技术,2010, 6(2):45-49.(LIU Juan, PAN Luo-ping, GUI Zhong-hua, et al. The Current Status of On-line State Monitoring and Fault Diagnosis Technologies for Hydrogenerating Unit[J]. Large Electric Machine and Hydraulic Turbine, 2010, 6(2):45-49. (in Chinese))
[2] 李方泽.工程振动测试与分析[M].北京:高等教育出版社,1992. (LI Fang-ze. Test and Analysis of Engineering Vibration[M]. Beijing: Higher Education Press,1992. (in Chinese))
[3] IFEACHOR E C, JERVIS B W. 数字信号处理实践方法(第二版)[M].北京:电子工业出版社,1998: 35-38. (IFEACHOR E C, JERVIS B W. Digital Signal Processing: A Practical Approach(Second Edition)[M]. Beijing: Electronic Industry Press,1998: 35-38. (in Chinese))
[4] MORLET J, ARENS G, FOURGEAU E, et al. Wave Propagation and Sampling Theory and Complex Waves[J]. Geophysics, 1982, 47(2): 222-236.
[5] 李舜酩. 高速旋转机械运行状态检测与故障诊断方法的研究[D]. 西安:西安交通大学,1998: 12-13. (LI Shun-ming. Research on Detection and Fault Diagnosis Method of Running State of High-speed Rotating Machinery[D]. Xi’an: Xi’an Jiaotong University, 1998: 12-13. (in Chinese))
[6] 董毓新. 水轮发电机组振动[M].大连:大连理工大学出版社,1989: 120-121. (DONG Yu-xing. Vibration of Hydrogenerator Set[M]. Dalian: Dalian University of Technology Press, 1989: 120-121. (in Chinese))[7] 刘晓亭,刘 昱.大型水电机组推力轴承运行稳定性及故障诊断[J].水力发电,2002, (11):48-51. (LIU Xiao-ting, LIU Yu. Stability and Fault Diagnosis of the Thrust Bearing of Large Hydroelectric Unit[J]. Water Power, 2002, (11): 48-51. (in Chinese))
