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Plasma Actuation for the Control of a Supersonic Projectile

机译:等离子驱动控制超音速弹丸

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摘要

The generation of a plasma discharge on a projectile surface seems to be a way of producing a pressure imbalance to divert a projectile from its initial trajectory. Thus, some experiments dealing with the steering of a supersonic projectile by using a plasma actuator are presented. The plasma discharge is produced by an embedded low-voltage generator capable of delivering an electric discharge between the electrodes flush with the projectile surface. A first series of experiments carried out under wind-tunnel conditions at a Mach number of 3 allows the detailed study of the perturbation evolution along the projectile surface, the disturbance being generated by the plasma discharge. A second series of experiments in the wind tunnel at the same Mach number demonstrates that a plasma discharge generates the angular deviation of a fin-stabilized projectile: 243 J of stored energy delivered in 2.5 ms at the cone-cylinder junction of the projectile induces an angle of attack of 2 deg after the plasma-discharge generation. Other experiments conducted in a shock-tube facility under low-altitude conditions prove that it is possible to activate a plasma discharge on a projectile flying at a Mach number of 6.
机译:在弹丸表面上产生等离子放电似乎是产生压力不平衡的一种方法,可以使弹丸偏离其初始轨迹。因此,提出了一些通过使用等离子体致动器来处理超音速弹丸转向的实验。等离子体放电由嵌入式低压发生器产生,该发生器能够在与弹丸表面齐平的电极之间传递放电。在风洞条件下以3马赫数进行的第一批实验允许详细研究沿射弹表面的扰动演化,该扰动是由等离子体放电产生的。在风洞中以相同的马赫数进行的第二系列实验表明,等离子放电会产生鳍状稳定弹丸的角度偏差:243 J的储存能量在2.5 ms内在弹丸的圆锥形圆柱体交界处传递,产生一个产生等离子放电后2度的迎角。在低空条件下在激波管设施中进行的其他实验证明,有可能在以6马赫数飞行的弹丸上激活等离子体放电。

著录项

  • 来源
    《Journal of Spacecraft and Rockets》 |2009年第5期|989-998|共10页
  • 作者

    Patrick Gnemmi; Christian Rey;

  • 作者单位

    French-German Research Institute of Saint-Louis, F-68301 Saint-Louis Cedex, France;

    French-German Research Institute of Saint-Louis, F-68301 Saint-Louis Cedex, France;

  • 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
  • 中图分类
  • 关键词

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