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首页> 外文会议>1st International conference on green propellant for space propulsion >LOx / CH_4 Liquid Boosters for Ariane 5 : A promising alternative concept
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LOx / CH_4 Liquid Boosters for Ariane 5 : A promising alternative concept

机译：LOx / CH_4阿丽亚娜5号液体助推器：一个有前途的替代概念

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摘要

At the horizon of 2010, the foreseen evolutions of Ariane 5 include a new generation of solid boosters: metallic cases exchanged for filament wounded ones. Besides, alternative preliminary studies are performed concerning liquid boosters for their probable advantages in terms of performances. Nevertheless the exchange of the solid boosters of Ariane 5 by liquid boosters is not immediate and needs systems studies and cost evaluation.rnA study performed by EADS-LV under CNES contract on the implementation of a LOx/CH_4 acceleration stage on Ariane 5 has focused on a preliminary design of what would be an Ariane 5 with liquid boosters and on the system consequences of the use of liquid acceleration stage on Ariane 5.rnThe performances are quite interesting: the payload mass is greater than the one obtained with solid boosters, and the objectives of about 14 tons on a GTO orbit could be realized, with a potential growth up to 15-16 tons on a GTO orbit.rnMoreover, another advantage is to be noted: the liquid boosters reduce the dynamic pressure along the flight.rnThis preliminary study of the implementation of liquid acceleration stage on Ariane 5 shows that this concept is greatly credible, under the assumption that it might be possible to have a low recurrent cost for the considered LOx/CH_4 engine.
机译：在2010年即将到来之际，可预见的阿丽亚娜5的进化将包括新一代的固体助推器：将金属外壳换成细丝缠绕的外壳。此外，就液体助推器在性能方面可能的优势进行了替代性的初步研究。然而，通过液体助推器交换Ariane 5的固体助推器不是立即的，并且需要系统研究和成本评估。带有液体助推器的Ariane 5的初步设计，以及在Ariane 5上使用液体加速台的系统后果。性能非常有趣：有效载荷质量大于使用固体助推器获得的质量可以实现在GTO轨道上达到约14吨的目标，而在GTO轨道上可能会增长15-16吨。rn此外，还应注意另一个优点：液体助推器可降低飞行过程中的动压力。在Ariane 5上对液体加速阶段的实施情况进行的研究表明，在假设可能有较低的重复成本的前提下，该概念非常可信搭载LOx / CH_4引擎。

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  • 会议地点 Noordwijk(NL)
  • 作者

    Nathalie DELATTRE; Philippe CLAR; Laurent BOUAZIZ; Jean-Bernard PERIE; Pierre FRISCH;

  • 作者单位

    EADS Launch Vehicles, 66 route de Verneuil, BP 3002, 78133 Les Mureaux, France - Tel: (33)139061614 - Fax: (33) 139063857 Nathalie.delattre@launchers.eads.net;

    rnEADS Launch Vehicles, 66 route de Verneuil, BP 3002, 78133 Les Mureaux, France - Tel: (33)139061614 - Fax: (33) 139063857;

    rnEADS Launch Vehicles, 66 route de Verneuil, BP 3002, 78133 Les Mureaux, France - Tel: (33)139061614 - Fax: (33) 139063857;

    rnEADS Launch Vehicles, 66 route de Verneuil, BP 3002, 78133 Les Mureaux, France - Tel: (33)139061614 - Fax: (33) 139063857;

    rnCNES, Rond point de I'espace, 91023 Evry, France;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 空气动力学;
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