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Electromechanical cooperative design method for skin antenna based on parallel Bayesian optimization

A collaborative design and antenna technology, applied in the field of antennas, can solve problems such as large amount of calculation and low calculation efficiency, and achieve the effect of saving optimization time

Active Publication Date: 2018-12-21
XIDIAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing skin antenna electromechanical collaborative optimization design is too large in calculation and the calculation efficiency is low, and proposes a skin antenna electromechanical collaborative design method based on parallel Bayesian optimization to reduce Calculation volume, improve design quality and optimization efficiency

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  • Electromechanical cooperative design method for skin antenna based on parallel Bayesian optimization
  • Electromechanical cooperative design method for skin antenna based on parallel Bayesian optimization
  • Electromechanical cooperative design method for skin antenna based on parallel Bayesian optimization

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Embodiment Construction

[0040] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0041] refer to figure 1 , an electromechanical co-design method for skinned antennas based on parallel Bayesian optimization, which includes the following steps:

[0042] 1) Determine the design variables and initial design space and optimize the design model, so that the number of iterations k=1. The optimization model is as follows:

[0043]

[0044] In the formula, x is the structural design variable of the skin antenna, for example, including the length, width and thickness of the antenna unit, or the thickness of the skin and the honeycomb. f(x) is the objective function of the optimization design problem; for the electromechanical co-design of the skinned antenna, f(x)=-Gain(x) represents the gain of the antenna, and the Bayesian optimization model is used to approximate the objective function. W(x) is the mass constraint, d(...

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Abstract

The invention provides an electromechanical cooperative design method of a skin antenna based on parallel Bayesian optimization in order to reduce calculation amount, improve design quality and optimize efficiency. Determine the design variables and initial design space, carry out initial sampling, extract all sample points in the sample point database and their corresponding response values, select Bayesian algorithm to construct the surrogate model of the objective function, use the pseudo-expectation enhancement criterion as the collection function to select multiple candidate solutions, and judge the degree of satisfaction of the constraint conditions. If the number of calculation times of the electromechanical coupling model reaches the set number or satisfies the convergence criterion, the iteration is stopped and the optimal solution is outputted. A large amount of optimization time is saved for complex problems, and only one sample point is randomly selected for initial sampling, so the optimization process is repeatable.

Description

technical field [0001] The invention relates to a parallel electromechanical collaborative design method for skin antennas, in particular to a parallel Bayesian optimization-based electromechanical collaborative design method for skin antennas, which belongs to the technical field of antennas. Background technique [0002] Skin antenna is a structure-function integrated antenna composed of microstrip antenna, panel and honeycomb. It can be used not only as a load-bearing structure for a weapon platform, but also as an antenna for sending and receiving wireless electromagnetic waves. It also has the functions of service state perception and performance adaptation, and can be widely used in new-generation fighters, drones, early warning airships and other equipment. When designing the skin antenna, the mechanical structure of the panel and the honeycomb not only determines the carrying capacity of the skin antenna, but also affects the electrical performance of the antenna rad...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06K9/62
CPCG06F30/20G06F18/24155
Inventor 周金柱李海涛王梅黄进康乐李申
Owner XIDIAN UNIV
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