【摘要】 为了确保海冰碰撞下船体结构的安全性问题，对舰船冰带区结构进行加强设计。基于光滑粒子流体动力学-有限元（SPH-FEM）计算方法建立船-冰-水耦合数值模型，采用该数值方法分析不同因素对船体结构应力响应的影响，并根据强度评估结果开展舰船结构加强优化设计研究。结果表明，加强后的结构满足冰区航行舰船强度要求。所提的SPH-FEM耦合方法能够对冰区航行舰船结构响应进行有效预报，通过结构响应进行结构加强优化设计可为冰区舰船进一步优化设计提出改进建议。更多还原

【Abstract】 In order to ensure the safety of the ship hull structure under sea ice collision, it is necessary to strengthen the design of the ship ice zone structure. Firstly, a ship-ice-water coupling numerical model based on the smoothed particle hydrodynamics-finite element method(SPH-FEM) is introduced, and then the numerical method is used to analyze the influence of different factors on the stress response of the ship structure. Finally, according to the strength assessment results, carrying out the research on the optimization design of the ship structure strengthening is carried out. The results show that the strengthened structure meets the strength requirements of navigating ships in ice areas. The SPH-FEM coupling method can effectively predict the structural response of navigating ships in ice areas. The optimization design of structural strengthening by structural response can provide effective suggestions for further optimization design of ships in ice areas.更多还原