박용 디젤 엔진용 커넥팅 로드의 강도평가

This paper presents the procedure and results of the structural analysis for the connecting rod of a medium-size marine diesel engine. Press fitting of bearing shells at the big end and shrink fitting of bearing bush at the small end have been simulated including the fully mechanical contact between the neighboring components such as big end upper, big end lower, and conrod shaft. According to the fabrication procedure of the connecting rod, FE analysis have been performed. At the initial design stage of connecting rod, FE analysis presents the comprehensive understanding for structural behavior and information for validation of design parameter. It was confirmed that fatigue strength of the connecting rod was sufficient and each design parameter was within the allowable level.