Abstract:In order to solve the problems of low service life of couplings and large difference in service life of each component due to traditional design method,HyperWorks FEM software was used to carry out structural topology optimization design for the SSWZ330 heavy coupling by adopting evolutionary structural topology optimization method combining the “removal and recovery” strategy with the cell sensitivity algorithm.In the optimization process,a cell-based “removal-restoration” strategy was adopted to calculate the stress sensitivity of each cell and the sensitivity of this iteration.According to the target volume,volume evolution rate and filter radius of a given structure,deletion or retention was determined.The problems of multiconstrain optimization in the traditional structure optimization algorithm were solved,and the evolutionary structure topology optimization design of SSWZ330 heavy coupling was realized.After optimization,the volume of flange fork and sleeve plug is reduced by 83%,which expands the practical application of HyperWorks software in the field of evolutionary structural topology optimization design of mechanical components.