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An active control strategy to suppress nonlinear vibrations of large space membranes

机译：抑制大空间膜非线性振动的主动控制策略

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摘要

Large space membranes have been widely used in many space projects to develop extremely large and lightweight SAR antennas, solar arrays and solar sails, and the nonlinear structural vibrations induced by on-orbit disturbances should be suppressed to satisfy the mission requirements. In this paper, the nonlinear dynamic behaviors of a typical large space membrane, which can not be accurately described by natural frequencies and mode shapes, are investigated by the trustworthy iterative membrane property modeling approach. Based on the discussions of the controller design challenges from such nonlinearity, this paper proposes a distributed control strategy to actively suppress the nonlinear membrane vibration, and comparatively evaluates three different actuating and sensing placements to obtain superior vibration suppression performance. Very promising results numerically demonstrate that the proposed control strategy is theoretically feasible and has great potential to be used in the design of active vibration suppression systems for large space membrane applications.
机译：大空间膜已广泛用于许多空间项目中，以开发超大型和轻型SAR天线，太阳能电池阵列和太阳帆，并且应抑制在轨干扰引起的非线性结构振动，以满足任务要求。在本文中，通过可靠的迭代膜特性建模方法研究了典型大空间膜的非线性动力学行为，该行为无法通过固有频率和振型来精确描述。在讨论这种非线性所带来的控制器设计挑战的基础上，本文提出了一种分布式控制策略来主动抑制非线性膜振动，并比较评估三种不同的驱动和感应位置以获得卓越的振动抑制性​​能。数值上非常有希望的结果表明，所提出的控制策略在理论上是可行的，并且在大空间膜应用的主动减振系统设计中具有巨大的潜力。

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  • 来源
    《Acta astronautica》 |2019年第2期|80-89|共10页
  • 作者

    Shi Hang; Wang Chao; Liu Lilan; Gao Zenggui; Xie Yangmin;

  • 作者单位

    Aerosp Syst Engn Shanghai, 3805 Jindu Rd, Shanghai 201109, Peoples R China;

    Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai Key Lab Intelligent Mfg & Robot, 99 Shangda Rd, Shanghai 200444, Peoples R China;

    Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai Key Lab Intelligent Mfg & Robot, 99 Shangda Rd, Shanghai 200444, Peoples R China;

    Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai Key Lab Intelligent Mfg & Robot, 99 Shangda Rd, Shanghai 200444, Peoples R China;

    Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai Key Lab Intelligent Mfg & Robot, 99 Shangda Rd, Shanghai 200444, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Large space membrane; Active vibration suppression; Nonlinear vibration;

    机译：大空间膜;主动减振;非线性振动;

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