中国机械工程 ›› 2025, Vol. 36 ›› Issue (10): 2284-2291.DOI: 10.3969/j.issn.1004-132X.2025.10.015

• 机械基础工程 • 上一篇    

空间薄膜天线变形/姿态耦合动力学与控制

於祖庆1(), 齐婷玉1, 刘卓1, 田青龙1,2()   

  1. 1.河海大学机电工程学院, 常州, 213200
    2.河海大学力学与工程科学学院, 南京, 211100
  • 收稿日期:2025-04-30 出版日期:2025-10-25 发布日期:2025-11-05
  • 通讯作者: 田青龙
  • 作者简介:於祖庆,男,1987年生,博士、副教授。研究方向为多柔体系统动力学建模与计算方法、绝对节点坐标法、计算机辅助设计与分析整合、多物理场分析方法等。发表论文30余篇。E-mail:yuzq@hhu.edu.cn
    田青龙*(通信作者),男,1991年生,讲师、博士。研究方向为多体系统动力学、多物理场耦合、模型降阶等。发表论文10余篇。E-mail: Tian-ql@hhu.edu.cn
  • 基金资助:
    国家自然科学基金(12272123);国家自然科学基金(12302047);江苏省基础研究计划自然科学基金(BK20231185);江苏省青年科技人才托举工程项目(JSTJ-2024-481)

Deformation/Attitude Coupling Dynamics and Control of Space Membrane Antennas

Zuqing YU1(), Tingyu QI1, Zhuo LIU1, Qinglong TIAN1,2()   

  1. 1.College of Mechanical & Electrical Engineering,Hohai University,Changzhou,Jiangsu,213200
    2.College of Mechanical & Engineering Science,Hohai University,Nanjing,211100
  • Received:2025-04-30 Online:2025-10-25 Published:2025-11-05
  • Contact: Qinglong TIAN

摘要:

针对空间薄膜天线自旋过程中柔性体多尺度耦合动力学建模与控制难题,提出了一种薄膜天线混合建模与姿态解耦控制策略。采用绝对节点坐标法的薄板单元与圆截面梁单元建立了薄膜-空心撑杆混合单元动力学模型。引入薄膜非线性本构描述薄膜天线作动过程中张紧-松弛状态的变化。利用绝对节点坐标法可以同时描述柔性体变形与刚体转动的特性,对选定节点的位置向量梯度矩阵进行极化分解,解算出薄膜天线姿态信息并在此基础上施加比例-微分力矩控制。仿真结果表明,提出的动力学建模与控制方法可以有效地实现薄膜天线姿态跟踪误差渐进收敛。

关键词: 薄膜天线, 变形/姿态耦合, 绝对节点坐标法, 柔性多体动力学

Abstract:

Aiming to address the challenging issues of multiscale coupled dynamics modeling and control for flexible bodies during the spin deployment of space membrane antennas, a hybrid modeling approach and attitude decoupling control strategy was proposed herein. A hybrid element dynamic model integrating membrane and hollow support rods was developed using thin plate elements and circular cross-section beam elements based on ANCF. Nonlinear constitutive relations were introduced to characterize the tensioned-relaxed state transitions of space membrane antennas during deployment. By leveraging ANCF's capability to describe flexible body deformation and rigid body rotation simultaneously, polar decomposition was performed on the gradient matrices of selected nodal position vectors to extract attitude information. A proportional-derivative (PD) torque control scheme was subsequently implemented based on the derived posture parameters. Simulation results demonstrate that the proposed dynamics modeling and control methodologies may achieve asymptotic convergence of attitude tracking errors effectively.

Key words: space membrane antenna, deformation/attitude coupling, absolute nodal coordinate formulation (ANCF), dynamics of flexible multibody system

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