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首页> 外文会议>AIAA modeling and simulation technologies conference 2015 >Modeling and Control Design for a New Spacecraft Concept for Measuring Particles and Fields with Unprecedented Resolution and Accuracy
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Modeling and Control Design for a New Spacecraft Concept for Measuring Particles and Fields with Unprecedented Resolution and Accuracy

机译：一种新型航天器概念的建模和控制设计，该概念用于以前所未有的分辨率和精度测量粒子和场

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摘要

The microphysics of reconnection, sharp boundaries, shocks and turbulence are at the forefront of space plasma physics research. In all of these cases, the component of the electric field parallel to the local magnetic field (the parallel electric field) plays a key role. To obtain this component, one must measure the three-component electric and magnetic field accurately because the parallel electric field is typically an order-of-magnitude smaller than the perpendicular electric field. Spacecrafts that have measured such electric fields have been spin stabilized, so the spin-axis measurement, made with a much shorter antenna than the spin plane wire boom measurements, does not have the required sensitivity. However, for both field and plasma measurements, it is highly desirable to make measurements in the spin planes of two rotating platforms because major advancements of science are expected from such data. For the purpose of obtaining such measurements, a new spacecraft architecture has been studied. It consists of a fixed center body with one surface, holding solar panels, pointing sunward, magnetometer for the second measurement, with counter-rotating platforms on two other surfaces aligned at 90 degrees to each other. This paper will review in more detail the science motivations for the spacecraft configuration; a straw-man design of the spacecraft and it will describe the modeling and control of such a system. This paper also analyzed the dynamics of this structure and proposed a control structure to maintain its attitude to prevent tangle of the booms.
机译：重新连接，尖锐边界，冲击和湍流的微观物理学处于空间等离子体物理学研究的最前沿。在所有这些情况下，平行于局部磁场的电场分量（平行电场）起着关键作用。为了获得这一分量，必须精确地测量三分量电场和磁场，因为平行电场通常比垂直电场小一个数量级。已经测量了此类电场的航天器已经自旋稳定，因此使用比自旋平面线动臂测量短得多的天线进行的自旋轴测量没有所需的灵敏度。然而，对于场和等离子体测量，由于在这种数据上期望科学的重大进步，因此非常需要在两个旋转平台的自旋平面上进行测量。为了获得这样的测量，已经研究了一种新的航天器结构。它由一个固定的中心体组成，该中心体的一个表面固定有太阳能电池板，指向太阳朝阳，用于第二次测量的磁力计，在两个其他表面上的反向旋转平台彼此成90度对齐。本文将更详细地回顾航天器配置的科学动机。航天器的一个稻草人设计，它将描述这种系统的建模和控制。本文还分析了这种结构的动力学特性，并提出了一种控制结构，以保持其姿态以防止动臂缠结。

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  • 来源
  • 会议地点 Kissimmee FL(US)
  • 作者

    Yao-Ting Mao; David Auslander; David Pankow; Karla Vega; Forrest S. Mozer; Paul Turin;

  • 作者单位

    Mechanical Engineering Department, University of California-Berkeley, Berkeley, CA, 94720;

    Mechanical Engineering Department, University of California-Berkeley, Berkeley, CA, 94720;

    Space Sciences Laboratory, University of California-Berkeley, Berkeley, CA, 94720;

    Advanced Visualization Laboratory, Indiana University Bloomington, IN 47405;

    Space Sciences Laboratory, University of California-Berkeley, Berkeley, CA, 94720;

    Space Sciences Laboratory, University of California-Berkeley, Berkeley, CA, 94720;

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  • 原文格式 PDF
  • 正文语种 eng
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