Finite Element Analysis of Antenna Array of Large Meter Wave Height Mobile Dual Polarization Radar based on NASTRAN
2020
A large-scale meter wave high maneuvering dual polarization radar is designed with a cantilever folded beam. In order to realize the high tolerance spread of its dual polarization antenna, it is necessary to ensure that its folded spread antenna array has high plane stiffness. Firstly, the finite element model is established according to the geometrical model of the antenna array. Secondly, the corresponding load conditions are determined according to the material parameters of the antenna array, different wind loads and temperature fields. Then, the mechanical calculation and analysis of the antenna array are carried out by using NASTRAN software, and the deformation, stress and deformation of the antenna array element and folded beam under different conditions are obtained Square root value. The results show that the array can meet the requirements of stiffness and strength.
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