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이종환(Jong Hwan Lee),남대호(Dae-Ho Nam),손정호(Jung Ho Son),배종국(Jong Gug Bae) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
??2-stroke marine diesel engine has generally one exhaust valve and three fuel injection nozzle which are key component for engine’s performance and combustion. Fuel injection and exhaust valve driving system are driven by rotating of camshaft. Rotation of crank shaft drives the cam shaft through gear train that is composed of 3~4 gear wheels. Gear column supporting the gear wheel has to bear against the dynamics forces by engine running as well as gearing forces. In this paper, structural analysis for engine structure and fatigue strength assessment of welded joint is shown. Repeatedly full cyclic simulation during one cycle is performed to investigate the structural behavior of engine. Fatigue analysis is carried out based on IIW using submodeling technique to obtain more detailed stress distribution.