An Electromechanical Coupling Analysis Method for Wing Skin Antennas

Abstract

The invention discloses a wing cover antenna electromechanical coupling analytic method which comprises the following steps: (1) designing a geometric structure model for an integrated wing cover antenna; (2) extracting expected position coordinates at micro-strip radiating element centers; (3) leading the geometric structure model into a CFX solver of Ansys software, establishing a pneumatic analytic model of the geometric structure model, and obtaining array surface deformation data and the maximum stress; (4) evaluating the influence degree of the pneumatic load on the force and electrical properties of the wing cover antenna through calculating the direction coefficient, the gain and the like. The method has the benefits that the calculating speed is fast, the result is accurate, the occupied internal memory is small, the evolvement rule of the influence of the inconstant pneumatic load on the force and electrical property of the integrated wing cover antenna can be quantitatively analyzed, the disadvantage that the conventional software is difficult in realizing electromechanical coupling analysis is overcome, and basis is laid for evaluating influence degree of the pneumatic load in the design stage and realizing multidisciplinary integrated design of pneumatics, structure and electromagnetism.

Description

Technical field [0001] The invention relates to an electromechanical coupling analysis method for a wing skin antenna, in particular to an electromechanical coupling analysis method for predicting the evolution law of the electromechanical performance of a wing skin antenna with integrated structure and function and a multidisciplinary design, belonging to an aircraft antenna Technical field. Background technique [0002] The structure-function integrated wing skin antenna means that the radio frequency function of the integrated microstrip antenna array is embedded into the wing structure of the aircraft. The highly integrated skin antenna manufactured by the integrated composite molding process can be used as The mechanical bearing function of the weapon platform structure can also be used as an electromagnetic function for sending and receiving wireless electromagnetic waves. The design idea of ​​using structure and function integrated wing skin antenna is that the wing syste...

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Problems solved by technology

[0006] 1. Although the above literature found that factors such as panels, honeycombs, and bonding can affect the electromechanical performance of the antenna, it lacks a coupling analysis method for the influence of aerodynamic loads on its electromechanical performance during service, resulting in the inability to predict service performance during the design stage. Evolution

[0007] 2. The design of this type of antenna needs to consider multidisciplinary knowledge such as aerodynamics, structure, and electromagnetic radiation. However, due to the lack of electromechanical coupling analysis methods for structural-functional integrated wing skin antennas, the design method of electromechanical separation is mainly used at present, resulting in High development cost, long period and poor service performance, etc.

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