某平底浅吃水船上层建筑应力集中分析及改善措施

Analysis&improving methods of superstructure stress concentration of a flat-bottom ship with shallow draft

对某平底浅吃水船上层建筑应力集中的成因进行了理论分析,并应用有限元数值计算方法对船体结构强度进行了三维有限元分析.根据计算结果对上层建筑前端壁与主船体的连接方式进行了优化.经实船检验,该优化设计提高了这类船舶结构的安全性,实用可行.

This paper analyzes the cause of superstructure stress concentration of a flat-bottom ship with shallow draft. It optimizes the connection structure between superstructure front bulkhead and main deck by the hull strength analysis using FEM numerical calculation method Checked by real ship, this method is useful to improve the safety of the ship structure.