杆系类天线结构的拓扑优化设计

本文提出了一种适用于杆系类天线结构的拓扑优化设计方法。它可在满足电气性能所要求的主面形状的前提下获得最佳的拓扑结构形式(节点关联关系)。从一般杆系结构拓扑优化的角度看,该方法不仅可在拓扑优化过程中处理位移、应力等性态约束,而且不要求预给设计位移场。最后,将本方法应用于几个桁架结构与杆系类天线结构的拓扑优化设计中,取得了令人满意的结构。

On Topology Optimization for Antenna Structures

This paper presents an efficient method of topology optimization for antenna structures. By the method, the optimal topological form can be obtained to satisfy the demand of its electronic performance. From the point of view about the topology optimization of trusses, not only the behavior constraints such as displacement and stress constraints could be dealt with during the optimal design but also the main difficulty of predetermined displacement field is warded off in this method. Finally, this method is applied to several examples of trusses and two types of antenna structures with excellently satisfactory results obtained.