超大型真空容器大门设计及优化研究

Research on Gate Design and Optimization of Super Large Vacuum Vessel

本文以直径10m的超大型真空容器大门为研究对象,介绍了超大型立式容器大门的设计分析情况,采用可靠性设计与仿真优化相结合的方法,对大门在外压和起吊时的强度和变形分布进行了模拟分析,并根据分析结果对大门加强筋布置进行了优化设计。研究表明:在封头曲率变化较大处与加强筋之间设置补强板,可以有效减少大门局部应力超限的问题;封头加强筋减少至6根可以降低材料用量,此时最大应力为97.37MPa,最大变形为4.1mm,仍然可以满足材料使用要求;大门起吊时整体承受重力载荷,最大变形量为0.13mm,最大应力为18.6MPa,满足材料使用要求。

This paper takes the super large vacuum vessel gate with a diameter of 10m as the research object,the design and analysis of the super large vertical vacuum vessel gate are introduced.The strength and deformation of the gate under external pressure and lifting are simulated and analyzed by using the method of reliability design and simulation optimization,and the stiffener arrangement of the gate is optimized according to the analysis results.The research work shows that the problem of local stress overrun of the gate can be effectively reduced by setting a reinforcing plate between head and stiffener at the place where the curvature changes greatly.Reducing the number of head stiffeners to six can reduce the material consumption.In this case,the maximum stress increases to 97.37MPa and the maximum deformation increases to 4.1mm,which can still meet the material use requirements.When lifting,the whole gate bears the gravity load with the maximum deformation of 0.13mm and the maximum stress of 18.6MPa,which can meet the material use requirements.