A parametric study based on spectral fatigue analysis for 170k LNGC
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초록
The Spectral Fatigue Analysis is representative fatigue life assessment method for vessels. This Analysis is performed generally for the whole vessel and many assessment sites. The spectral fatigue analysis is performed through the process of hydrodynamic response analysis, global structural analysis, local structural analysis and calculation of fatigue damage. In these processes, fatigue damage is affected by many variables. The representative variables are S-N curve data,wave scatter data, wave spectrum, bandwidth effect and etc. In this paper, the effects of these variables to the fatigue damage are analyzed through the spectral fatigue analysis for 170k LNGC.
Abstract
The Spectral Fatigue Analysis is representative fatigue life assessment method for vessels. This Analysis is performed generally for the whole vessel and many assessment sites. The spectral fatigue analysis is performed through the process of hydrodynamic response analysis, global structural analysis, local structural analysis and calculation of fatigue damage. In these processes, fatigue damage is affected by many variables. The representative variables are S-N curve data,wave scatter data, wave spectrum, bandwidth effect and etc. In this paper, the effects of these variables to the fatigue damage are analyzed through the spectral fatigue analysis for 170k LNGC.
참고문헌 (6)
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- ABS, "Spectral-based fatigue analysis for floationg production, storage and offloading (FPSO) systems. ABS guidance note" (2006), American Bureau of Shipping
- Lloyd, "Fatigue Design Assessment, Level 3 Guidance on direct calculations" (2002), Lloyd’s Register
- KR, "Guidance for the Fatigue Strength Assessment of Ship Structures. Rules for classification of steel ships" (2010), Korean Resister of Shipping
- Miner, M.A, "Cumulative damage in fatigue", Journal of Applied Mechanics, 12, pp.159~164 (1945)
- A. Almar-Naess, "FATIGUE HANDBOOK" (1985), Tapir publication