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The modal analysis and modal behavior investigations on the wrinkled membrane inflated beam

机译:褶皱膜充气梁的模态分析与模态行为研究

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摘要

Inflated beams are major supported components of membrane aerospace spacecrafts. In such structures, the wrinkles are easy to be formed and have great influences on the vibration behaviors. A better understanding of the vibration behaviors of the wrinkled membrane inflated beam is thus very essential and desirable. In this paper, the Update Nodal Coordinates combined with Direct Perturbed-Force techniques are presented to simulate the vibration of a wrinkled membrane inflated beam. The effects of the wrinkles on the structural vibration behaviors are deeply analyzed and the parametric study is performed in detail finally. Results reveal that the wrinkling stress level and effective mass in the wrinkled region are the major factors to change the frequency and modes.
机译:充气束是膜航天航天器的主要支撑部件。在这样的结构中,皱纹易于形成并且对振动行为具有很大的影响。因此,对起皱的膜充气梁的振动行为的更好的理解是非常必要的。在本文中,提出了更新节点坐标与直接摄动力技术相结合的方法,以模拟起皱的膜充气梁的振动。深入分析了皱纹对结构振动行为的影响,最后进行了详细的参数研究。结果表明,皱纹区域的皱纹应力水平和有效质量是改变频率和模式的主要因素。

著录项

  • 来源
    《Acta astronautica》 |2012年第2期|660-666|共7页
  • 作者单位

    Harbin Institute of Technology, Center for Composite Materials, No. 2, Yikuang Street, Nangang District, Harbin, China;

    Harbin Institute of Technology, Center for Composite Materials, No. 2, Yikuang Street, Nangang District, Harbin, China;

    Harbin Institute of Technology, Center for Composite Materials, No. 2, Yikuang Street, Nangang District, Harbin, 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

    membrane structure; inflated beam; wrinkling; vibration;

    机译:膜结构充气梁皱纹振动;

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