An Analysis Method of Radome Electromagnetic Performance Considering Thermal Effect

Abstract

The invention provides a radome electromagnetic performance analysis method considering a heat effect. The method mainly comprises the following steps: S1, establishing a radome mechanical calculationelectromagnetism calculation finite element model; s2, adding material attributes to the mechanical finite element model established in the step S1, and applying a temperature load and boundary conditions; s3, solving the static problem, and extracting node displacement; s4, reconstructing a finite element model of deformation under a temperature load based on the node displacement extracted in S3; s5, reconstructing the finite element model deformed in the step S4 based on HyperMesh software to obtain an electromagnetic calculation finite element model; s6, electromagnetic medium parameter setting and antenna modeling of the electromagnetic calculation finite element model established in the S5 are completed, and analysis of the wave-transparent performance of the radome under the temperature load is completed; and S7, electromagnetic medium parameter setting and antenna modeling of the electromagnetic calculation finite element model established in the step S1.2 are completed, and original state radome wave transmission performance analysis is completed.

Description

Technical field [0001] The present invention belongs to the field of calculating electromagnetic structural strength, and more particularly to an antenna cover electromagnetic performance analysis method in consideration of thermal effects. Background technique [0002] As aerospace technology continues to grow towards high speed, light weight development, all kinds of flight conditions facing all kinds of aircraft are more complicated. The load of the high-speed flight aircraft is mainly reflected in the complex temperature load brought by high speed flight. The antenna cover is located at the front end of the entire aircraft, directly undertakes the temperature load brought by high-speed flights. At the same time, the antenna cover bears the protection function of critical electronic components such as the entire aircraft radar guide. However, during the actual design of the aircraft, the strength design and electromagnetic performance design of the antenna cover are often two ...

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Problems solved by technology

[0003] Purpose of the invention: To solve the current problems of long R&D cycle, high iteration cost, and lack of cross-discipline between mechanics and electromagnetics in the radome research and development process, resulting in the inability to simultaneously optimize the electrical and mechanical properties of the radome, and reduce the design cycle and design cost of the radome

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