Airplane electromagnetic environment effect simulation method

Abstract

The invention provides an aircraft electromagnetic environment effect simulation method, which comprises the steps of importing an aircraft CAD model, and performing mold repairing and multi-scale subdivision on the aircraft CAD model to form an aircraft grid model; setting airplane material electromagnetic parameters by utilizing the airplane composite material electromagnetic parameter library;performing regional decomposition numerical simulation modeling on the aircraft grid model in combination with material electromagnetic parameters to obtain an aircraft electromagnetic model; and in combination with a preset electromagnetic excitation source, calculating an electromagnetic field intensity value of the internal area of the aircraft by adopting an adaptive cross approximation algorithm ACI or a multilayer fast multipole algorithm MLFMA on the basis of a moment method MoM for the aircraft electromagnetic model; setting a cable harness path and electrical characteristic information, and establishing a harness electromagnetic model in the aircraft electromagnetic model by utilizing the aircraft harness modeling model library; and in combination with the electromagnetic field intensity value, adopting a high-frequency field line coupling analysis algorithm for the wire harness electromagnetic model to calculate an induced current value on an aircraft cable harness.

Description

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AI Technical Summary

Benefits of technology

This technology allows engineers to easily simulate how complex structures behave when exposed to different types of radiation such as lightning or gamma rays during flight without having access too much detail about their physical properties like density. It also includes an electric field model with multiple scales and various parameters stored within it which helps them calculate more accurate results compared to traditional methods based on specific material characteristics.

Problems solved by technology

This patented describes an issue where current commercially available simulations cannot effectively simulate complex composites (such as those used by military forces) without causing damage or malfunctions due to their unique characteristics. Current simulators are limited because they only work at certain frequencies within these environments. Therefore there needs a new approach called Electromagnetism Simulation Programming (EMP), which allows engineers to easily create customized models based upon different types of conductive elements found inside them.

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