Lightning electromagnetic environment simulation method and system

Abstract

The invention discloses a lightning electromagnetic environment simulation method and system. The method comprises steps of acquiring an aircraft sample box model established in a CST cable working chamber; setting a lightning stroke path of the lightning current based on the model; adding an electromagnetic element in the lightning stroke path to obtain a simulated lightning current; setting a background material and a boundary condition of the simulated lightning current; using a transmission line matrix algorithm to carry out mesh generation on a simulation environment to obtain an electromagnetic simulation model, determining simulation parameters based on a set solver, performing circuit modeling based on an aircraft sample box model, simulation lightning current and the simulation parameters to obtain a circuit simulation model, and performing electromagnetic field simulation and circuit simulation simultaneously based on the electromagnetic simulation model and the circuit simulation model to obtain a simulation result of a lightning electromagnetic environment. The CST platform is used for lightning electromagnetic environment analysis, the CST platform has the advantages of being convenient to verify, flexible, accurate and low in cost, and simulation of the electromagnetic environment can be visually and vividly achieved without complex work.

Description

technical field [0001] The invention relates to the technical field of electromagnetic simulation, and more specifically, to a method and system for simulating a lightning electromagnetic environment. Background technique [0002] In recent years, with the rapid development of my country's science and technology and aerospace technology, a large number of aircraft such as rockets and satellites have been put into use. During the flight, the aircraft will be affected by various space radiation environments. For example, in the process of flying away from the earth's atmosphere, the aircraft will be affected by electromagnetic pulses such as thunder and lightning. In orbit around the earth, it may encounter radiation from space high-energy particles such as the earth's radiation belt, galactic cosmic rays, and solar cosmic rays. It may even be affected by The effects of nuclear explosions, electromagnetic pulses, etc. These electromagnetic pulse radiation environments will c...

AI Technical Summary

Problems solved by technology

The main advantage of numerical analysis is that it can predict and analyze the approximate response of aircraft cables to lightning current. However, calculation methods such as finite elements are required. The calculation process is cumbersome, and the calculation results are not intuitive enough to provide intuitive and clear operation methods for industry insiders.

The advantage of the physical test is that it can obtain accurate and credible test results, but it needs to consume a lot of resources (human, financial and material resources)

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