目的 通过对PVC，PP，PE这3种材料的塑料蜂窝板蜂窝单元进行多目标优化求解，得到PVC，PP，PE这3种材料塑料蜂窝板的最优结构参数。方法 利用Ansys Workbench仿真分析和多目标优化迭代求解。结果 硬质PVC材料的蜂窝板蜂窝单元的最优结构参数是蜂窝边长为10.135 mm，蜂窝壁厚为0.151 44 mm，蜂窝高度为10.925 mm；PP材料的蜂窝板蜂窝单元的最优结构参数是蜂窝边长为10.001 mm，蜂窝壁厚为0.150 24 mm，蜂窝高度为10.621 mm；HDPE材料的塑料蜂窝板蜂窝单元的最优结构参数是蜂窝边长为10.998 mm，蜂窝壁厚为0.150 16 mm，蜂窝高度为10.196 mm。优化后的质量有了明显的降低，PVC蜂窝板的质量降低了10.74%，PP蜂窝板的质量降低了11.11%，HDPE蜂窝板的质量降低了11.97%。结论 通过Ansys Workbench进行仿真分析和多目标优化设计能够快速有效地得到结构件最优结构参数。

The work aims to obtain optimal structure parameters of plastic perforated board made from PVC, PP and PE based on multiobjective optimization solution of perforated unit of plastic perforated board made from the three materials. Simulation analysis and multiobjective optimization iterative solution were carried out via Ansys Workbench. Optimum structure parameters of hard PVC material were: honeycomb length as 10.135 mm, cell wall thickness as 0.151 44 mm and honeycomb height as 10.925 mm. For PP material: honeycomb length as 10.001 mm, cell wall thickness as 0.150 24 mm, and honeycomb height as 10.621 mm. For HDPE material: honeycomb length as 10.998 mm, cell wall thickness as 0.150 16 mm and honeycomb height as 10.196 mm. The mass of optimized plastic perforated board decreased significantly, that of PVC honeycomb board decreased by 10.74%, PP perforated board by 11.11% and HDPE perforated board by 11.97%. Ansys Workbench-based simulation analysis and multi-objective optimization design is a fast and efficient method to obtain the optimum structure parameters of structural parts.