基于ANSYS Workbench的FAST天线背架结构有限元分析及设计优化  

FE-Analysis and Optimizing on FAST Antenna Frame Based on ANSYS Workbench

作　　者：刘剑[1] 李燕[1] 

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2014年第4期25-29,共5页

摘　　要：为减小FAST背架的重量以降低工程成本，利用ANSYSWorkbench对面板单元的背架结构进行了有限元计算和优化设计。首先运用三维建模软件Pro／ENGINEER对背架结构实现参数化建模，并定义设计变量。在此基础上利用ANSYSWorkbench对背架结构进行离散化处理和有限元计算。然后以最大变形为约束条件，以结构质量最小为目标函数，用ANSYSWorkbench对结构进行优化设计。本优化实现了背架结构40％的重量优化，对该类结构优化的难点问题提出有针对性的解决方法。最后对优化结果进行圆整处理，结果表明本次优化的正确性和可行性。ANSYS Workbench is used to analyze and optimize the FAST antenna frame in this paper in order to minimize the mass of the antenna and the building costs. First, parametric modeling of the structure is established using 3-D software Pro/ENGINEER, as well as the design variable is defined. Then the FE-Analysis is done with the help of ANSYS Workbench. Finally, the structure is optimized by ANSYS Workbench to minimal mass within the available deformation. This optimization is managed to minimal the mass by 40%, and a solving method for optimization is proposed. After rounding the optimizing result, the new EF-analysis result show that the optimization is right and feasible.

关 键 词：500 m 口径球面射电望远镜 天线背架 有限元分析 参数化 优化设计 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]