Method for strong electromagnetic pulse environment simulation based on frequency-time transformation

A simulation method, electromagnetic pulse technology, applied in electrical digital data processing, special data processing applications, instruments, etc.

CN104951606AInactive Publication Date: 2015-09-30HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2015-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for strong electromagnetic pulse environment simulation based on frequency-time transformation and provides a method for adopting a magnitude spectrum reconstruction electromagnetic pulse waveform to perform frequency-time transformation and simulate the strong electromagnetic pulse environment of an electrically ultra-large object. The method comprises the following steps: (1) establishing a geometric model of the electrically ultra-large object through related modeling software, guiding the geometric model in electromagnetic simulation software, selecting an appropriate surface element subdivision mode, and generating a corresponding electromagnetic model; (2) adopting the electromagnetic simulation software to perform simulation calculation on the frequency domain electromagnetic environment of the electrically ultra-large object; and (3) inverting time domain pulse through the frequency domain response of the simulation of the complex electromagnetic pulse environment of the electrically ultra-large object. The electromagnetic environment distribution characteristic calculation problem of the electrically ultra-large object under the attack of electromagnetic pulse weapons is solved.
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Description

technical field

[0001] The invention relates to a method for simulating a strong electromagnetic pulse environment based on frequency-time transformation. It proposes a method for using amplitude spectrum reconstruction of electromagnetic pulse waveforms for frequency-time transformation to simulate a strong electromagnetic pulse environment for superelectric large-scale objects. The calculation problem of electromagnetic environment distribution characteristics of superelectric large-scale objects under the attack of electromagnetic pulse weapons is solved. Background technique

[0002] A large amount of electronic equipment is equipped on a super-electric large-scale object. When faced with a complex electromagnetic environment under electromagnetic pulse radiation, the performance of the equipment will be degraded or even permanently damaged. At the same time, the induced current on the metal structure of the super-electric large-sized object caused by high-intensity elec...

Examples

Embodiment Construction

[0019] Through relevant modeling software, establish the geometric model of the superelectric large-scale object, import the geometric model into the electromagnetic simulation software, select the appropriate panel subdivision method, and generate the corresponding electromagnetic model; after establishing the superelectric large-scale object model, it is necessary to Accurate electromagnetic modeling of structures: use triangular and quadrilateral planar slices to fit the surface of superelectric large-scale objects, and divide them into surface element meshes. At the same time, since the size of the bin mesh directly affects the efficiency and accuracy of numerical calculations, during the modeling process, the ultra-electric large-scale objects are layered and subdivided. For complex structures, a smaller subdivision step is used to ensure that the simulation precision.

[0020] Electromagnetic simulation software is used to simulate and calculate the frequency-domain elec...