A Hexapod-Based Thrust Balance
A Hexapod-Based Thrust Balance
复制标题
基于六足位移台的推力平衡
DOI：
--
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Naughton
中科院分区：
文献类型：
--
作者：
Aaron A. Hudlemeyer;J. Naughton
喷嘴所产生的力和力矩的测量是广泛应用所必需的。用于此目的的典型推力天平是配备有测力传感器的三轴平移台，以测量沿沿着三个平移方向的力。具有推力矢量的现代喷管可以很好地使用推力天平，这种天平测量力矩和力，这就要求在设计中增加复杂性。复杂的天平可能非常昂贵，并且难以与高压喷嘴供应管线集成。为了解决这些缺点，这里提出了一种基于六足的天平。六足机器人是一种六腿设备，通常用于精确的微定位和振动阻尼（参见，例如，McInroy和Hamman）。六足机器人最初在60年代被研究用于飞行模拟等应用。在这里，传统的六足设计通过用测压元件取代典型的致动器而适用于力/力矩测量设备。本工作的目标是证明这种装置的可行性，并证明其使用的推力stand. The理论与推力平衡的讨论，然后提出的硬件实现。简要讨论了迄今为止在喷气式飞机设施中实施这种平衡的进展。较低的惯性、可调谐性以及与推力架的一体化都表明，这是一种可以在正在开发的新推力架中考虑的设计。
The measurement of forces and moments produced by nozzles is needed for a wide range of applications. Typical thrust balances used for this purpose are three-axis translation stages equipped with load cells to measure forces along the three translation directions. Modern nozzles with thrust vectoring can be well served by thrust balances that measure moments as well as forces requiring additional complexity in the design. Sophisticated balances can be quite costly and difficult to integrate with high pressure nozzle supply lines. To address these shortcomings, a hexapod-based balance is proposed here. A hexapod is a six legged device often used for accurate micro-positioning and vibration damping (see, for example, McInroy and Hamman). Hexapods were originally investigated in the 60s for use in applications such as flight simulations. Here, the traditional hexapod design is adapted to a force/moment measurement device by replacing the typical actuators with load cells. The goal of the present work is to demonstrate the feasibility of such a device and demonstrate its use on a thrust stand. The theory associated with the thrust balance is first discussed and the hardware implementation is then presented. The progress to date on implementing this balance in a jet facility is briefly discussed. The lower inertia, tunability, and integration with the thrust stand all indicate that this is a design that might be considered in new thrust stands being developed.