Radome electromagnetic performance analysis method considering heat 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 invention belongs to the cross field of computational electromagnetics structure strength, and particularly relates to a method for analyzing the electromagnetic performance of a radome considering thermal effects. Background technique [0002] With the continuous development of aerospace technology towards high speed and light weight, the flight conditions faced by various aircraft are becoming more and more complicated. The load borne by a high-speed aircraft is mainly reflected in the complex temperature load caused by the high-speed flight. The radome is located at the forefront of the entire aircraft and directly bears the temperature load caused by the high-speed aircraft. At the same time, the radome is responsible for the protection of key electronic components such as radar guidance of the entire aircraft. However, in the actual design process of aircraft, the strength design and electromagnetic performance design of the radome 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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