지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.8
- 수록면
- 752 - 760 (9page)
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이 논문의 연구 히스토리 (3)
2011
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초록· 키워드
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In tilting pad bearing design process, the selection of the proper configuration type of either a load-between-pad(LBP) or load-on-pad(LOP) as well as preload and pivot offset conditions is to be carefully considered. Also the bearing needs to be designed in order to be suited for the rotor-bearing system and operating condition. In this paper, it is observed that the dynamic characteristics in a five pad tilting pad bearing for the LBP and the LOP configurations are influenced by the variation of preload and pivot offset. In this context, rotor dynamic analysis of the 5 MW industrial gas turbine supported by the tilting pad bearing at the front and roller bearing at the rear is carried out based on the dynamic coefficients of the tilting pad bearing investigated. The result shows that two rigid body critical modes experience various changes according to the influence of the tilting pad bearing uniquely applied to one side of this machine. Mainly, the second critical speed, the rigid body mode of conical shape with high whirling in the tilting pad bearing, is significantly changed by preload and pivot offset regardless of the LBP and LOP configurations. And, the first critical mode, the rigid body mode of conical shape with high whirling in the roller bearing, is sensitively affected by preload applied to the LOP configuration and by its asymmetric dynamic properties.
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참고문헌 (12)
참고문헌 신청
1. [학술지(정기간행물)] - Lund, J. W. / 1964 / Spring and Damping Coefficients for the Tilting-pad Journal Bearing / Tribology Transactions 7 (4) : 342 ~ 352
3. [학술대회논문] - Delgado, A. / 2010 / Identification and Prediction of Force Coefficients in a Five-pad and Four-pad Tilting Pad Bearing for Load-on-pad and Load-between-pad Configurations / Proceedings of ASME Turbo Expo 2010
4. [학술지(정기간행물)] - Nicholas, J. C / 1982 / Four Pad Tilting Pad Bearing Design and Application for Multistage Axial Compressors / ASME Journal of Lubrication Technology 104 (4) : 523 ~ 529
5. [학술대회논문] - Zeidan, F. Y / 1994 / Application of High Speed and High Performance Fluid Film Bearings in Rotating Machinery / Proceedings of the Twenty-third Turbomachinery Symposium : 209 ~ 233
6. [학술대회논문] - Schmied, J. / 2010 / Non-synchronous Tilting Pad Bearing Characteristics / The 8th IFToMM International Conference on Rotor Dynamics : 143 ~ 148
3. [학술대회논문] - Delgado, A. / 2010 / Identification and Prediction of Force Coefficients in a Five-pad and Four-pad Tilting Pad Bearing for Load-on-pad and Load-between-pad Configurations / Proceedings of ASME Turbo Expo 2010
4. [학술지(정기간행물)] - Nicholas, J. C / 1982 / Four Pad Tilting Pad Bearing Design and Application for Multistage Axial Compressors / ASME Journal of Lubrication Technology 104 (4) : 523 ~ 529
5. [학술대회논문] - Zeidan, F. Y / 1994 / Application of High Speed and High Performance Fluid Film Bearings in Rotating Machinery / Proceedings of the Twenty-third Turbomachinery Symposium : 209 ~ 233
6. [학술대회논문] - Schmied, J. / 2010 / Non-synchronous Tilting Pad Bearing Characteristics / The 8th IFToMM International Conference on Rotor Dynamics : 143 ~ 148
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