| 摘要: |
| 受制于航天器有限的运载能力，为实现更大结构尺寸星载天线的部署，在轨组装技术应运而生。本文针对面向在轨组装的模组天线精度保障问题，分析了在轨组装模组天线结构特点和型面精度调控方式，建立了设计缩比样机实验测试平台，构建了满足精度求解要求的模组天线型面精度分析有限元模型，通过缩比样机测试实验验证了有限元模型的准确性，构建了BP神经网络型面精度代理分析模型，提出了基于遗传算法的型面精度调控方法，并通过缩比样机结构算例验证了调控算法的有效性。 |
| 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 |
| 基金项目:中国航天科技集团有限公司第八研究院产学研合作基金项目（SAST2***-*19） |
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| Research on Modeling and Control Algorithm of Antenna Surface Precision for In-orbit Assembly of Modular Satellites |
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Qin Li1,2,Fang Guangqiang1,2,Guo Junkang3,4,Zeng Lingbin5
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1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001;2. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001
1. National Key Laboratory of Aerospace Mechanism, Institute of Aerospace System Engineering Shanghai, Shanghai 201108;3.2. School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049;4.3. Key Laboratory for Modern Design & Rotor-Bearing System, Ministry of Education, Xi’an Jiaotong University, Xi’an 710049;5.4. China Academy of Aerospace Science and Innovation, Beijing 100048
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| Abstract: |
| 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. |
| Key words: in-orbit assembly；surface precision；assembly precision analysis；proxy model；precision control |
