天线结构的多工况离散变量优化设计

Antenna structure's discrete variables optimum design under multiple loading conditions

针对天线结构受载及工作状态的复杂性,研究了天线结构的多工况离散变量优化设计问题。首先建立了天线结构在自重、风荷作用下受精度、应力和稳定性约束的多工况优化设计的数学模型;其次根据材料特点,将设计变量取为离散变量,给出了天线结构的多工况离散变量优化设计数学模型。采用离散复合形法,对多工况8 m天线进行了优化计算。结果表明,计算结果与分析结果相吻合,该方法可应用于多工况天线结构优化设计中,且精度较高。

This paper studied antenna structure＇s discrete variables optimum design under multipie loading conditions in accordance with the complexity of antenna structure. Firstly, a mathematics model is established for optimum design of antenna structure under multiple loading conditions, which is constrained by antenna structure＇s accuracy, stress and stability under the self- gravity and wind loading. Then according to the characteristics of structure material, the variables are treated as discreteness, and the model is modified for discrete variables. Finally by taking the discreet compound shape method, the optimizing calculation of 8m antenna is carried out. A satisfactory agreement between the computation and the analysis is obtained. Results indicate that the method can be applied to the optimum design of antenna structure under multiple loading conditions. And the accuracy is satisfied. 3 tabs, 2 figs, 8 refs.