Research and Development of Ground Simulation Methods for Spacecraft Environment, and Degradation Experiments of Spacecraft Materials

航天器环境地面模拟方法研究与进展及航天器材料降解实验

基本信息

  • 批准号:
    09555301
  • 负责人:
  • 金额:
    $ 5.57万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1999
  • 项目状态:
    已结题

项目摘要

A ground facility was developed for simulation of material and space plasma interaction and for study of spacecraft charging and discharge phenomena. The plasma simulator consisted of a vacuum tank, two turbo-molecular pumps and an electron cyclotron resonance plasma source of a magnetic-field-expansion plasma accelerator. Oxygen, nitrogen and argon plasma properties were measured. The simulator was found to have a high potential for ground tests. Using the simulator, the structure of an ion sheath created around a high voltage solar array and the degradation of surface materials near the array due to high energy ion bombardment were investigated. A negatively biased plate was exposed to oxygen plasma flow. The ion current and the plasma potential distribution were found to be intensively changed by the biased voltage and the attack angle, particularly a scaling parameter derived from the one-dimensional ion sheath theory. Furthermore, in order to examine the influences of ion bombardment on chemical structures of spacecraft surface materials, polymer films of polyimide BPDA-PDA Kapton, located on the biased plate, were exposed to oxygen plasma flow. The XPS analysis showed that an addition reaction of oxygen atoms or ions at wake condition was negligible compared with that at ram condition because of a smaller ion flux. Consequently, the addition reaction and a desorption of structural components were found to occur by ion bombardment. They are expected to cause the decrease in performance of spacecraft thermal control. Furthermore, in order to understand the relaxation of spacecraft charging by plasma flow, i.e., plasma contactor operation, Kapton and Teflon FEP films negatively charged by exposure to high energy electron beams and metal plates in series with negatively charged condensers were exposed to argon plasma flow. Negative charging was rapidly relaxed, and the attack angle influenced the time variation of the neutralization current.
开发了一个地面设施,用于模拟材料和空间等离子体相互作用以及研究航天器充电和放电现象。等离子体模拟器由真空罐、两个涡轮分子泵和磁场扩展等离子体加速器的电子回旋共振等离子体源组成。测量了氧、氮和氩等离子体的特性。该模拟器被发现具有很高的地面测试潜力。使用模拟器,研究了高压太阳能电池阵列周围形成的离子鞘的结构以及由于高能离子轰击导致的阵列附近表面材料的降解。将负偏压板暴露于氧等离子体流。发现离子电流和等离子体电势分布会受到偏置电压和攻角的强烈改变,特别是源自一维离子鞘层理论的缩放参数。此外,为了研究离子轰击对航天器表面材料化学结构的影响,将位于偏置板上的聚酰亚胺BPDA-PDA Kapton聚合物薄膜暴露于氧等离子体流中。 XPS分析表明,由于离子通量较小,与冲压条件相比,尾流条件下氧原子或离子的加成反应可以忽略不计。结果,发现通过离子轰击发生加成反应和结构组分的解吸。预计它们将导致航天器热控制性能下降。此外,为了了解等离子体流对航天器充电的弛豫,即等离子体接触器操作,将通过暴露于高能电子束而带负电的 Kapton 和 Teflon FEP 薄膜以及与带负电的电容器串联的金属板暴露于氩等离子体流。负电荷迅速松弛,攻角影响中和电流的时间变化。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
田原弘一,他: "電離層プラズマ-高電圧ソーラーパネル間相互作用の数値解析"真空. 40・3. 126-128 (1997)
Koichi Tahara 等:“电离层等离子体与高压太阳能电池板之间相互作用的数值分析”真空 40・3。
  • DOI:
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  • 影响因子:
    0
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  • 通讯作者:
Daiki Matsuyama et al.: "Ground Experiments of Interaction between Plasma Flow and Negatively Biosed or Charged Materials"Proc. Int. Electric Propusion Conf.. 99-224. 1-10 (1999)
Daiki Matsuyama 等人:“等离子体流与负生物或带电材料之间相互作用的地面实验”Proc。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
Hirokazu Tahara et al.: "Ground Simulation Experiment of Plasma Environment around spacecraft at Osaka University"30th Plasmadynamics and Laser Conf.. AIAA99-3737. 1-7 (1999)
Hirokazu Tahara 等人:“大阪大学航天器周围等离子体环境的地面模拟实验”第 30 届等离子体动力学和激光会议。AIAA99-3737。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
Hirokazu Tahara: "Ion Sheath Structure around Metal Plates Located in Plasma Flows"4th Int. Conf. Reactive Plasmas and 16th Symp. Plasma Processing, Extended Abstracts. No.EMP5.09. 123-124 (1998)
Hirokazu Tahara:“位于等离子流中的金属板周围的离子鞘结构”第四届 Int。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Akiko Ochi et al.: "Degration of Spacecraft Polymer Materials by Charged Particle Irradiation and Its Influences on Charging Events"Proc. 6th. Int. SAMPE Symp.. 2. 1155-1158 (1999)
Akiko Ochi 等:“带电粒子辐照对航天器聚合物材料的降解及其对充电事件的影响”Proc。
  • DOI:
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    0
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TAHARA Hirokazu其他文献

TAHARA Hirokazu的其他文献

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{{ truncateString('TAHARA Hirokazu', 18)}}的其他基金

Development of High-Performance, Long-Lifetime and High-Power Magneto-Plasma-Dynamic Thrusters for In-Space Exploration
开发用于太空探索的高性能、长寿命和高功率磁等离子体动力推进器
  • 批准号:
    17H03484
  • 财政年份:
    2017
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Research on Low-Temperature Material Processings Using Supersonic Plasma Jets
超音速等离子射流低温材料加工研究
  • 批准号:
    23656543
  • 财政年份:
    2011
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
RESEARCH AND DEVELOPMENT OF HIGH-SPECIFIC-IMPULSE AND LONG-LIFETIME HALL THRUSTERS
高比冲长寿命霍尔推进器的研发
  • 批准号:
    22360360
  • 财政年份:
    2010
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
RESEARCH ON ENHANCEMENT OF IMPULSE FOR ELECTROTHERMAL PULSED PLASMA THRUSTERS ONBOARD SMALL SATELLITES
小卫星电热脉冲等离子体推进器脉冲增强研究
  • 批准号:
    19360382
  • 财政年份:
    2007
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
RESEARCH AND DEVELOPMENT OF LOW-POWER HALL THRUSTERS WITH CIRCULAR-CROSS-SECTIONAL DISCHARGE CHAMBER, AND ITS INNER PHYSICAL PROCESSES
圆形断面放电室小功率霍尔推进器及其内部物理过程的研制
  • 批准号:
    16360420
  • 财政年份:
    2004
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Plasma Flow Structure of Direct-Current Arcjet Thrusters and Its Spacecraft Interaction Research
直流电弧喷射推进器等离子流结构及其与航天器相互作用研究
  • 批准号:
    13450398
  • 财政年份:
    2001
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Flowfield Structure and Acceleration Process in Quasi-Steady Magneto-Plasma-Dynamic (MPD) Arc Channels
准稳态磁等离子体动力 (MPD) 电弧通道中的流场结构和加速过程
  • 批准号:
    07651123
  • 财政年份:
    1995
  • 资助金额:
    $ 5.57万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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