Diagnosis and Treatment of Low-Frequency Vibration of Steam Turbine Tilting Bearing

Wang Dacheng; Shi Qingfeng; Wang Miaomiao; Zhang Jinggan

doi:10.13832/j.jnpe.2016.S1.0038

Volume 37 Issue S1

Feb. 2025

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Wang Dacheng, Shi Qingfeng, Wang Miaomiao, Zhang Jinggan. Diagnosis and Treatment of Low-Frequency Vibration of Steam Turbine Tilting Bearing[J]. Nuclear Power Engineering, 2016, 37(S1): 38-42. doi: 10.13832/j.jnpe.2016.S1.0038

Citation:

Wang Dacheng, Shi Qingfeng, Wang Miaomiao, Zhang Jinggan. Diagnosis and Treatment of Low-Frequency Vibration of Steam Turbine Tilting Bearing[J]. Nuclear Power Engineering, 2016, 37(S1): 38-42. doi: 10.13832/j.jnpe.2016.S1.0038

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Diagnosis and Treatment of Low-Frequency Vibration of Steam Turbine Tilting Bearing

doi: 10.13832/j.jnpe.2016.S1.0038

CNNP Nuclear Power Operations Management Co. Ltd., Haiyan, Zhejiang, 314300, China

Received Date: 2016-03-24
Rev Recd Date: 2016-04-23

Available Online: 2025-02-15

Abstract

Abstract

Unsteady low frequency vibration happened on the tilting bearing of a 600 MW nuclear steam turbine during the operation.Based on the vibration and load,the amount of oil,speed and other variables,and from the characteristics of vibration,it is ascertain that the low frequency vibration of a tilting pad bearing is mainly caused by the low frequency resonance resulted from the oil film instability of the thrust bearing and mis-installation of the vibration probe support,.and some suggestions are put forward to reduce or eliminate the low frequency vibration of the bearings.
- Turbine,
- Tilting bearing,
- Low frequency,
- Amplitude fluctuation