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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.12
- 수록면
- 514 - 520 (7page)
이용수
초록· 키워드
오류제보하기
Oil and gas production riser systems need to be designed considering a wide band quarter-modal analysis which contains low-,wave-, VIV(Vortex induced vibration) frequencies. The VIV can be separated into cross-flow(CF) and in-line(IL) components. In this study, the various idealized tri- and quarter-modal spectra are suggested to analyze fatigue damage on the production riser system. In order to evaluate the fatigue damage increment caused by the IL"s motion, tri- and quarter-modal spectral fatigue damages are calculated in time domain. And the fatigue damage calculated from two different modal spectra are compared quantitatively. Then the suitability of existent wide band fatigue damage models for quarter modal spectrum was evaluated by comparison of frequency domain calculation and time domain calculation. The result show that although spectral density of IL motion is not remarkable in quantity, the effect on the fatigue damage is significant and existent fatigue damage models are not adequately estimating damage by quarter-modal spectra.
목차
1. 서론
2. 광대역 스펙트럼의 형상
3. 시계열 생성 및 시간영역
4. 확률과정 특성치 및 피로손상 모델
5. 수치해석 결과
6. 결론
References
참고문헌 (20)
참고문헌 신청
[기타자료] - / 1985 / ASTM E 1049-85, Standard Practices for Cycle Counting in Fatigue Analysis / American Society for Testing and Materials International
[학술지(정기간행물)] - Baarholm, G.S. / 2006 / On Fatigue Damage Accumulation from In-line and Cross-flow Vortex-induced Vibrations on Risers / Journal of Fluids and Structures 22 : 109 ~ 127
[학술지(정기간행물)] - Benasciutti, D. / 2005 / Spectral Methods for Life Time Prediction under Wide-band Stationary Random Processes / International Journal of fatigue 27 (8) : 867 ~ 877
[보고서] - Bendat, J. S. / 1964 / Probability Functions for Random Responses: Prediction for Peaks, Fatigue damage, and Catastrophic Failures
[학술지(정기간행물)] - 전정수 / 2010 / Numerical investigation of vortex shedding and vortex-induced vibration for flexible riser models / International Journal of Naval Architecture and Ocean Engineering 2 (2) : 112 ~ 118
[학술지(정기간행물)] - Baarholm, G.S. / 2006 / On Fatigue Damage Accumulation from In-line and Cross-flow Vortex-induced Vibrations on Risers / Journal of Fluids and Structures 22 : 109 ~ 127
[학술지(정기간행물)] - Benasciutti, D. / 2005 / Spectral Methods for Life Time Prediction under Wide-band Stationary Random Processes / International Journal of fatigue 27 (8) : 867 ~ 877
[보고서] - Bendat, J. S. / 1964 / Probability Functions for Random Responses: Prediction for Peaks, Fatigue damage, and Catastrophic Failures
[학술지(정기간행물)] - 전정수 / 2010 / Numerical investigation of vortex shedding and vortex-induced vibration for flexible riser models / International Journal of Naval Architecture and Ocean Engineering 2 (2) : 112 ~ 118
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UCI(KEPA) : I410-ECN-0101-2017-538-001872391