基于有限元和函数的3D打印件成本最优化结构设计

Cost Optimization Structure Design of 3D Printed Parts Based on Finite Element and Function

烟机外观铝件为避让功能部件,只能固定两端。在自身重量的作用下,铝件发生的变形超出允许值,需对铝件进行优化设计,使变形满足要求。该铝件由于外观特性的需要,采用CNC等常规加工方法,部分特征无法做出。相关件的生产将通过3D打印获得,3D打印的材料价格高昂,合理的结构可以有效降低零部件的成本。因此,结合实际件变形,运用有限元分析和函数拟合,获取相关参数与铝件最大变形的函数。运用函数最优化设计,获取成本最低方案,得到了最符合实际生产的设计方案。

The appearance of aluminum parts of smoke machine,in order to avoid the functional parts,can only be fixed the both end.Under the action of its own weight,aluminum parts deformation beyond the allowable value,we need to optimize the design of aluminum parts to meet the requirements of deformation.Due to the need of appearance characteristics,this piece is can not be made by CNC.The production of relevant parts will be achieved through 3D printing.The price of 3D printing materials is high,and reasonable structure can effectively reduce the cost of components.This paper combines the deformation of actual parts,using finite element analysis and function fitting,to obtain the function of relevant parameters of the maximum deformation of the aluminum parts.Using the function optimization design,we can get the lowest cost scheme,which can be used to the actual production.