基于Ansys Workbench的快装箱多目标优化设计

Multi-objective Optimization Design of Plywood Box Based on Ansys Workbench

目的研究快装箱在压力作用下的静态特性,并对其结构进行多目标优化设计。方法通过Ansys Workbench建立快装箱的几何模型和有限元模型,对快装箱进行静态分析。以快装箱的各箱板厚度和各钢边厚度为设计变量,以快装箱的质量、最大变形量和最大等效应力为目标函数建立多目标优化的数学模型,对快装箱进行多目标优化设计,并且分析对比优化前后的结果。结果通过分析获得的优化前后快装箱的箱板厚度和钢边厚度都有所减小,在保证强度和刚度的条件下,使得总质量减少了9.018%。结论经分析快装箱的多目标优化设计是合理的,在满足使用要求的前提下,减少了总质量,节约了材料,降低了成本。

The work aims to study the static characteristics of plywood box under pressure and carry out multi-objective optimization design on its structure. The geometry model and finite element model of plywood box was created via Ansys Workbench and the static analysis on the plywood box was conducted. The mathematical model of multi-objective optimization was established with plywood box board thickness and steel edge thickness as the design variables and with the mass, maximum deformation and maximum equivalent stress of plywood box as the objective functions. Through the said model, the multi-objective optimization design on plywood box was done, and the results before and after the multi-objective optimization were analyzed and compared. Through the analysis on the plywood box board thickness and the steel edge thickness before and after the optimization, both thicknesses had been reduced. Under the condition of ensuring the strength and rigidity, the total mass was reduced by 9.018%. Through the analysis, the multi-objective optimization design of plywood box is reasonable, and the total mass is reduced, the materials are saved and the costs are decreased on the premise of meeting the usage requirements.