Fatigue Life Prediction for Warship Operation in Indonesian Water

Abstract:

The fatigue life of a corvette ship structural detail was predicted by using a spectral fatique analysis. The fluctuated wave load act to the ship’s structure in regular wave was estimated by using Diffraction Theory. The stress spectrum was defined using analytical approach consider to the design constructions of ship. The operational routes of a corvette ship were determined in Indonesian water condition for a year period of ship’s mission. The sea condition was ilustrated in term of wave spectrum which was developed using the ITTC formula. The spectral response of stress bending moment was calculated by multiplication of wave spectrum and stress bending moment in regular wave for certain life time. Furthermore, the estimation of the fatigue life was performed by using Palmgren-Miner rule during its life time of operation. Finally, the fatigue life of a corvette ship was predicted about 84 years based on the mission and water condition of Indonesia.

• Periodical: Applied Mechanics and Materials (Volume 874)
• Pages: 140-146
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.874.140
• Online since: January 2018
• Authors: Aries Sulisetyono*, Muammar Kadhafi
• Keywords: Fatigue Life, Spectral Fatique Analysis, Warship

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DOI: 10.4028/www.scientific.net/amm.862.291

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