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논문 기본 정보

자료유형
학술저널
저자정보
조용 (한국수자원공사) 오윤령 (한국수자원공사) 조태영 (한국수자원공사) 김대근 (한국수자원공사) 이계복 (충북대학교)
저널정보
한국유체기계학회 한국유체기계학회 논문집 한국유체기계학회 논문집 제23권 제3호(통권 제120호)
발행연도
2020.6
수록면
48 - 53 (6page)
DOI
10.5293/kfma.2020.23.3.048

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초록· 키워드

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Vibration characteristics of the rotating machinery has been usually managed to facilitate the deterioration of the equipment and to prevent accident in advance. In a hydropower turbine, pressure pulsation characteristics to induce vibration is investigated during the model testing with a small scale model turbine for various operating conditions, and a prototype turbine is constructed to operate stably on the site. However, the model test has limitation that can’t be considered together with the vibration characteristics of a generator itself and of civil engineering structures for the building that support a turbine and a generator. Therefore, field tests of vibration for a hydroelectric power plant are carried out periodically, thereby maintaining reliability for safe operation of power generation facilities. In the study, the vibration of a Francis type hydroelectric power plant operated over 30 years and overhauled a year and a half ago was measured and its characteristics has been investigated. Displacement and velocity sensors were installed at appropriate positions to measure the vibration of the rotating shaft and bearing support of a turbine and a generator, and the vibration characteristics of a typical hydroelectric power plant have confirmed by analyzing the measurement results. The vibration characteristics of rotating shaft and non-rotating parts of the hydroelectric turbine have been analyzed to confirm the degree of aging of the plant. Vibration in the power plant building depending on the operating conditions was also measured to be large enough to sense, and its frequency characteristics were analyzed.

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ABSTRACT
1. 서론
2. 현장 진동시험
3. 시험결과
4. 결론
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