摘要
给出了一种圆抛物面天线结构的优化方法。优化分内罚函数法连续变量优化以及在此基础上的隐枚举法离散变量优化两阶段进行。优化模型以天线骨架的杆件截面积为设计变量，结构最小重量为目标函数，变形面对最佳吻合抛物面的均方偏差约束、杆件截面应力约束、尺寸约束为约束函数．应用本方法对一８ｍ口径圆抛物面结构进行了优化。
A method for optimally sizing members of parabolic anterma using commerially available standard sections is given. The optimal process consists of two distinct phases: the continuous-variable optimum phase using the penalty function method and the discretevariable optimum phase using the implicit enumeration method based on the continuous-variable optimum phase. For the dead weight load, a minimum weigh structure is found while simultaneously ensuring stress and size of members and stiffness of structure performance conditions. Finally, optimized results using the above method for a parabolic antenna structurewith reflector 8-metres in diameter is presented.
关键词
抛物面天线
结构设计
离散变量法
天线
parabolic antennas
structure design
optindzation
discrete variable methods
