Multi-objective Structural Optimization of Antenna Pedestal Considering Wind Load
This paper aims primarily to enhance the mechanical properties and support stiffness of an elevation antenna pedestal.Taking into account the different operating angles of the antenna array,and under the premise of not increasing the weight of the antenna pedestal and maintaining the same installation interface dimensions,a multi-objective structural optimization of the pedestal is conducted.By establishing a topology optimization model that includes the antenna pedestal's support arms,base,gear pairs,bearings and the antenna array,and incorporating loads such as gravity,eccentric moment,inertial loads and wind loads,a topology optimization is conducted with the weighted strain energy and low-order natural frequencies under various operating conditions as the optimization objectives.Based on the topology optimization results,the support structure of the antenna pedestal is improved,and a comparative analysis before and after optimization is conducted.The results show that the mechanical properties of the elevation antenna pedestal has been enhanced under the given constraints of weight and interface dimensions.This optimization method has some engineering value for the structure optimization of antenna pedestal or similar products.
万方数据
维普
