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首页> 外文期刊>Journal of Spacecraft and Rockets >Quasi-Static Folding and Deployment of Ultrathin Composite Tape-Spring Hinges
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Quasi-Static Folding and Deployment of Ultrathin Composite Tape-Spring Hinges

机译：超薄复合带弹簧铰链的准静态折叠和展开

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摘要

Deployable structures made from ultrathin composite materials can be folded elastically and are able to self-ndeploy by releasing the stored strain energy. This paper presents a detailed study of the folding and deployment of antape-spring hingemade froma two-ply plain-weave laminate of carbon-fiber reinforced plastic. Aparticular versionnof this hinge was constructed, and its moment-rotation profile during quasi-static deployment was measured. Thenpresent study is the first to incorporate in the simulation an experimentally validated elasticmicromechanicalmodelnand to provide quantitative comparisons between the simulations and the measured behavior of an actual hinge.nFolding and deployment simulations of the tape-spring hinge were carried out with the commercial finite elementnpackageAbaqus/Explicit, starting fromthe as-built unstrained structure. The folding simulation includes the effectsnof pinching the hinge in the middle to reduce the peak moment required to fold it. The deployment simulation fullyncaptures both the steady-statemoment part of the deployment and the final snap back to the deployed configuration.nAn alternative simulation without pinching the hinge provides an estimate of the maximum moment that could bencarried by the hinge during operation. This is about double the snapback moment.
机译：由超薄复合材料制成的可展开结构可以进行弹性折叠，并且可以通过释放存储的应变能进行自部署。本文对由碳纤维增强塑料的两层平织层压材料制成的安塔普弹簧铰链的折叠和展开进行了详细研究。构造了该铰链的特殊形式，并测量了其在准静态展开过程中的力矩旋转轮廓。然后，本研究是第一个在仿真中包含经过实验验证的弹性微机械模型，并提供对仿真和实际铰链的测量行为之间的定量比较。 ，从建成的非应变结构开始。折叠模拟包括将铰链夹在中间以减小折叠所需的峰值力矩的效果。展开模拟完全捕获了展开的稳态时刻和最终恢复到展开配置的瞬间。n另一种模拟，无需捏合铰链，即可估算出铰链在运行过程中可能承受的最大力矩。这大约是快照时间的两倍。

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  • 来源
    《Journal of Spacecraft and Rockets》 |2011年第1期|p.187-198|共12页
  • 作者

    H. M. Y. C. Mallikarachchi;

  • 作者单位

    University of Cambridge, Cambridge, England CB2 1PZ, United Kingdom;

  • 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
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