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Comparative system analysis of reusable rocket and air-breathing launch vehicles.

机译:可重复使用的火箭和空中呼吸运载火箭的比较系统分析。

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摘要

A conceptual system design study was performed to assess and compare the parameters of single- and two-stage reusable air-breathing and rocket launch vehicles to identify configurations which improve space access and merit further developmental emphasis. Investigated air-breathing configurations included both two-dimensional and inward-turning inlet geometries and horizontal and vertical takeoff modes utilizing rocket or turbine engines. The baseline payload requirement was 20,000 lb to low-Earth orbit. The vehicles were evaluated utilizing several figures of merit including empty weight, wetted area, and maintenance hours. A further weight growth assessment ascertained the growth factor which characterizes each system's design risk and growth response to technological uncertainty. An additional trade study investigated payloads up to 70,000 lb. The two-stage rocket results showed strong performance in applied metrics. Horizontal takeoff single- and two-stage air-breathers trailed far behind, while the vertical takeoff air-breathers were very competitive and merit further attention.
机译:进行了概念性系统设计研究,以评估和比较单级和两级可重复使用的空气呼吸和火箭运载火箭的参数,以识别可改善空间通道的配置并值得进一步发展。研究的空气呼吸配置包括二维和向内旋转的进气口几何形状以及利用火箭或涡轮发动机的水平和垂直起飞模式。到低地球轨道的基线有效载荷要求为20,000lb。使用包括空重,湿润面积和维护时间在内的多项性能指标对车辆进行了评估。进一步的权重增长评估确定了增长因子,该增长因子表征了每个系统的设计风险和对技术不确定性的增长响应。另一项贸易研究调查了高达70,000 lb的有效载荷。两阶段火箭的结果显示了在应用指标方面的出色表现。水平起飞单级和二级空气呼吸器远远落后,而垂直起飞型空气呼吸器非常有竞争力,值得进一步关注。

著录项

  • 作者

    Dissel, Adam F.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Engineering Aerospace.
  • 学位 M.S.
  • 年度 2005
  • 页码 194 p.
  • 总页数 194
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空、航天技术的研究与探索;
  • 关键词

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