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Advanced Dual-Pull Mechanism for Deployable Spacecraft Booms

机译：适用于可展开航天器吊杆的高级双拉机制

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摘要

In this paper, a mechanism is developed to control deployment of a rollable carbon-fiber boom. The dual-pull mechanism keeps the coiled boom tightly wound at all times with a cowound tape. A novel geared hub uses a high-torque spring to maintain tension in the cowound tape during both extension and retraction. This tension eliminates blossoming and obviates the need for circumferential rollers. In addition, it ensures precise and repeatable positioning of the boom through multiple deployment/retraction cycles. Functional testing of the prototype was undertaken to understand the benefits and characterize the mechanism. Additional tests were performed to study root support conditions for the boom's exit from the spacecraft. Testing was performed on a Collapsible Tube Mast style boom, but the mechanism can be used for any motor-driven rollable boom type. This deployment mechanism provides a simple and robust device for boom deployment that is easily scalable.
机译：在本文中，开发了一种机制来控制可卷曲碳纤维吊杆的部署。双拉机构始终用缠带保持紧紧缠绕的动臂。一种新颖的齿轮式轮毂使用高扭矩弹簧在伸展和缩回过程中保持双绕带的张力。该张力消除了开花，并消除了对圆周滚子的需要。此外，它通过多个展开/缩回循环确保动臂的精确和可重复定位。对原型进行了功能测试，以了解其好处并表征该机制。进行了其他测试，以研究吊杆从航天器中退出时的根部支撑条件。测试是在可折叠管桅杆式动臂上进行的，但该机构可用于任何电机驱动的可滚动动臂式。这种部署机制为臂架部署提供了一个简单而强大的设备，可以轻松扩展。

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  • 来源
    《Journal of Spacecraft and Rockets》 |2019年第2期|569-576|共8页
  • 作者

    Firth Jordan A.; Pankow Mark R.;

  • 作者单位

    North Carolina State Univ, Mech & Aerosp Engn, 911 Oval Dr, Raleigh, NC 27695 USA;

    North Carolina State Univ, Mech & Aerosp Engn, 911 Oval Dr, Raleigh, NC 27695 USA;

  • 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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