Due to the limited payload capacity of spacecraft,in-orbit assembly technology has emerged to achieve the deployment of larger structural size spaceborne antennas.This article focuses on the precision assurance of modular antennas for in-orbit assembly,analyzes the structural characteristics and surface precision control methods of modular antennas for in-orbit assembly,establishes a design-scaled prototype experimental testing platform,builds a finite element model for analyzing the surface precision of modular antennas that meets the precision requirements,verifies the accuracy of the finite element model through scaled prototype testing experiments,develops a BP neural network surface precision proxy analysis model,proposes a surface precision control method based on genetic algorithms,and validates the effectiveness of the control algorithm through structural examples of scaled prototypes.
关键词
在轨组装/型面精度/装配精度分析/代理模型/精度调控
Key words
in-orbit assembly/surface precision/assembly precision analysis/proxy model/precision control
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