Plant Journal (플랜트 저널)
- Volume 4 Issue 3
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- Pages.66-72
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- 2008
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- 1976-8702(pISSN)
Vibration Characteristics of a Synchro Clutch Coupling for Steam Turbine
증기터빈용 Synchro Clutch Coupling의 진동 특성
- Shim, Eung-Gu (Department of Power Engineering, Graduate School of Hanyang University) ;
- Lee, Tae-Gu (Department of Mechanical Engineering, Graduate School of Hanyang University) ;
- Moon, Seung-Jae (School of Mechanical Engineering, Hanyang University) ;
- Lee, Jae-Heon (School of Mechanical Engineering, Hanyang University)
- Received : 2008.05.14
- Accepted : 2008.09.07
- Published : 2008.09.30
Abstract
The vibration of steam turbine is caused by Mass unbalance, Shaft misalignment, Oil whip and rubbing etc. But in turbine which is normally operated and maintained, the Mass unbalance component possesses the greatest portion. Our power plant has two steam turbines in capacity of 200 MW and 135 MW respectively and each turbine is supported by 6 journal bearings. However, we had many difficulties because the vibration amplitude of #3 and #4 Bearings was high during the start-up and operation mode change of steam turbine. But, with this study, we completely solved the vibration problem caused by the mass unbalance of #1 steam turbine. Until a recent date, #3 and #4 bearings which support high pressure turbine for #1 steam turbine had shown about