| With the continuous development of radar technology, higher and higher requirements are put forward on the working properties of the radar under a variety of complex operating conditions. The statics and dynamics properties of the antenna structure have direct influence on the electrical performance of the antenna, qualified statics and dynamics properties are not only an important basis of assuring the technical precision of the radar, but also have effect on whether the radar can work normally or not, which makes the structure analysis have extremely important significance.The beginning of this paper focuses on engineering studies of the influence of finite element (FE) modeling on the results of FE analysis. By comparing the results of several typical examples using different elements and grid, the effection research result, also the general principle of element selection and grid generation have been given; By comparing the results of different simplified FE models with the real model of board connection and joint structure, the characteristics and rationality analysis of the results have been proposed. Through the studies above directions to correctly establish the FE model and carry out FE Analysis have been provided.Based on the finite element method, the finite element model of the antenna is established, and the static analysis, dynamic analysis and the stabilization analysis of the structure are carried out with project software in order to check the stiffness and intensity of the structure. Finally some suggestions of modification are put forward and validated to be effective and reasonable. |
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