한국전산유체공학회:학술대회논문집
- 2008.03b
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- Pages.232-235
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- 2008
A study on Mass Unbalance Vibration Generated from 200MW Steam Turbine Synchro Clutch Coupling
증기터빈용 Synchro Clutch Coupling에서 발생하는 진동에 관한 연구
- Published : 2008.03.26
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 200MW and 135MW respectively and each turbine is supported by 6 journal bearings. However, we had many difficulties because the vibration amplitude of No 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 No 1 steam turbine. Until a recent date, No 3 and 4 bearings which support high pressure turbine for No 1 steam turbine had shown about 135