针对目前船闸人字门自重很大而引起闸门顶枢和底枢等关键部件变形磨损等问题,以船闸人字门自重最小为目标函数,以人字门的各面板、腹板厚度和主横梁、背拉杆截面参数为设计变量,以人字门的尺寸参数、最大应力和一阶模态频率为约束条件,根据实际情况建立了船闸人字门结构优化数学模型,基于Isight优化平台和Ansys有限元分析软件对某大型船闸人字门结构进行优化设计。结果表明,优化后的人字门重量较初始设计时减轻了25.3%,既节省了材料成本又保证了船闸人字门的稳定性要求。 Aiming at the problems such as the heavy weight of the Miter Gate of the ship and the deformation and wear of the key components such as the gate top pivot and the bottom pivot and so on, taking the minimum weight of the ship gate as the objective function, taking all the panels, web thickness and main beam , The parameters of the back pull rod cross-section are the design variables, the miter gate size parameter, the maximum stress and the first-order modal frequency are used as the constraint conditions. According to the actual situation, the optimized mathematical model of the Miter Gate structure is established. Based on Isight optimization platform and Ansys finite Meta-analysis software optimizes the design of a large ship Miter Gate structure. The results show that the weight of the optimized miter door is reduced by 25.3% compared with the initial design, which not only saves the material cost but also ensures the stability of the miter gate.