CAJ | 학술논문

基于S-N曲线和Miner线性累计损伤理论，采用谱分析法对穿浪双体船典型节点的疲劳强度进行了评估。建立全船结构有限元分析模型，分析计算不同浪向角及波浪频率下典型节点的热点应力传递函数，并采用北大西洋波浪散布图，对船体各典型节点进行疲劳强度评估。分析结果可为同类型穿浪双体船的结构设计和开发提供参考。
기우S-N곡선화Miner선성루계손상이론，채용보분석법대천랑쌍체선전형절점적피로강도진행료평고。건립전선결구유한원분석모형，분석계산불동랑향각급파랑빈솔하전형절점적열점응력전체함수，병채용북대서양파랑산포도，대선체각전형절점진행피로강도평고。분석결과가위동류형천랑쌍체선적결구설계화개발제공삼고。
Based on Miner’s rule of linear damage accumulation and S-N curves, fatigue strength assessment of wave-piercing catamaran (WPC) is performed by employing spectral-based analysis. First, a finite element model of ship structure is built. Then principal stress transfer functions of hot spots are calculated at several wave frequencies and wave headings. Fatigue strength assessment of the hot spots is conducted using wave scatter diagrams of the North Atlantic as the wave loading spectrum. The result is helpful to structural design of the joints of similar wave-piercing catamaran (WPC).