CAJ | 학술논문

针对船体舱段模型典型结构，设计易于实际操作实施的缩比模型试验方案；通过有限元软件对板架水下爆炸响应进行分析，对比各个缩比模型在水下爆炸载荷作用下的响应规律，寻找为完成不同试验目的而设计的最佳试验方案。数值分析结果表明：纵桁和实肋板梁模型在水下爆炸作用下的动力响应可验证梁在爆炸冲击载荷作用下的理论分析方法，十字交叉梁塑性变形可验证实船板架结构中交叉梁系的结构动力响应分析方法。双层底板架结构的塑性变形可对舰船局部强度考核的理论分析提供基础，缩比模型计算结果与实船较为一致。计算结果对舰船型号研制和强度考核具有理论指导意义。
침대선체창단모형전형결구，설계역우실제조작실시적축비모형시험방안；통과유한원연건대판가수하폭작향응진행분석，대비각개축비모형재수하폭작재하작용하적향응규률，심조위완성불동시험목적이설계적최가시험방안。수치분석결과표명：종항화실륵판량모형재수하폭작작용하적동력향응가험증량재폭작충격재하작용하적이론분석방법，십자교차량소성변형가험증실선판가결구중교차량계적결구동력향응분석방법。쌍층저판가결구적소성변형가대함선국부강도고핵적이론분석제공기출，축비모형계산결과여실선교위일치。계산결과대함선형호연제화강도고핵구유이론지도의의。
According to typical structure of cabin model,the scale model test program which is easily implemented has been designed. It analyzes underwater explosion response of grillage by finite element software ,and compares the response law of each scale model under the load of underwater explosion in order to find the best test program for the different test purpose. The numerical results show that the theoretical analysis method for girder under the impact load of explosion is validated by the dynamic response of longitudinal girder and plate floor model,and the structural dynamic response analysis method for the grillage beam in frame of real ships is validated by their plastic deformation. The plastic deformation of double floor frame can provide basis for local strength evaluation of warships . The calculation result of scale model is consistent with the real ship , which provides theoretical significance for the ship type development and strength assessment.