Optimization Analysis of Multi-parameter Response Surface for Large Fillet Weld Structure of Storage Tanks
In order to effectively reduce the stress intensity level at the large fillet weld structure of the storage tank,the three parameters of the outer extension length of the edge plate,the inner extension length of the edge plate,and the weld length of the large fillet weld on the inner side of the tank wall,which are only given in the GB 50341-2014"Code for design of vertical cylindrical welded steel oil tanks",were set as input variable parameters.The maximum stress intensity at the large fillet weld structure was set as output parameter,and the optimization goal was set to minimize the maximum stress intensity at the large fillet weld structure.Through ANSYS response surface optimization analysis,it is found that the maximum stress intensity varies widely when selecting different structural parameters.Optimization analysis can determine the optimal combination of multiple parameters,and suggestions for optimization and result selection are proposed.