한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2013년도 추계학술대회 논문집
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- Pages.862-867
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- 2013
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- 1598-2548(pISSN)
스트레스 모델을 이용한 터빈 축계의 비틀림 응력 예측
Torsional stress prediction of turbine rotor train using stress model
- Lee, Hyuk-Soon (Korea Hydro & Nuclear Power Co., LTD Plant Engineering & Management Department) ;
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Yoo, Seong-Yeon
(Chungnam National University)
- 발행 : 2013.10.27
초록
Torsional interaction between electrical network phenomena and turbine-generator shaft cause torsional stress on turbine-generator shaft and torsional fatigue fracture on vulnerable component, but the prediction of the torsional stress is difficult because the torsional stress is occurred instantly and randomly. Therefore continuous monitoring of the torsional stress on turbine-generator shaft is necessary to predict the torsional fatigue, but installing the sensors on the surface of the shaft directly to monitor the stress is impossible practically. In this study torsional vibration was measured using magnetic sensor at a point of turbine-generator rotor kit, the torsional stress of whole train of rotor kit was calculated using rotor kit's stress model and the calculated results were verified in comparison with the measured results using strain gauge at several point of turbine-generator rotor kit. It is expected that these experiment results will be used effectively to calculate the torsional stress of whole train of turbine-generator rotor in power plants.
키워드