摘要
为了减小FAST(Five-hundred-meter Aperture Spherical Telescope)背架的重量,以降低工程成本,利用ANSYS Workbench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/E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ANSYS Workbench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ANSYS Workbench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,结果表明本次优化是正确并可行的.
To reduce the FAST frame weight and engineering cost,the finite element calculation and optimization design are investigated into panel frame structure via ANSYS WorkbenchTM.Firstly,the parametric modeling,together with design variable definition,on frame structure is completed using Pro/ENGINEERTM.Then,the finite element analysis is conducted by ANSYS WorkbenchTM.Next,the structural optimizing is realized for discretization and finite element calculation.Finally,the structural optimization design is finished by treating the amximum deformation as constraint and minimum mass as objective function.Therefore,this approach,which reduces the structural weight by 40%,is proven correct and feasible in terms of result rounding.
出处
《中国工程机械学报》
北大核心
2016年第4期342-346,共5页
Chinese Journal of Construction Machinery
基金
2015年度湖北省教育科学规划重点课题(2015GA063)
关键词
FAST
天线背架
有限元分析
参数优化
FAST
antenna frame
finite element analysis
parametric optimization
