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Cruise Speed Sensitivity Study for Transonic Truss Braced Wing

机译:跨音速桁架支撑翼的巡航速度敏感性研究

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摘要

NASA's investment and research in aviation has led to new technologies and concepts that make aircraft more efficient and environmentally friendly. One aircraft design operational concept is the reduction of cruise speed to reduce fuel burned during a mission. Although this is not a new idea, it was used by all of the contractors involved in a 2008 NASA sponsored study that solicited concept and technology ideas to reduce environmental impacts for future subsonic passenger transports. NASA is currently improving and building new analysis capabilities to analyze advanced concepts. To test some of these new capabilities, a transonic truss braced wing configuration was used as a test case. This paper examines the effects due to changes in the design cruise speed and other tradeoffs in the design space. The analysis was baselined to the Boeing SUGAR High truss braced wing concept. An optimization was run at five different design cruise Mach numbers. These designs are compared to provide an initial assessment space and the parameters that should be considered when selecting a design cruise speed. A discussion of the design drivers is also included. The results show that the wing weight in the current analysis has more influence on the takeoff gross weight than expected. This effect caused lower than expected wing sweep angle values for higher cruise speed designs.

著录项

  • 作者

    Wells, Douglas P.;

  • 作者单位
  • 年(卷),期 2017(),
  • 年度 2017
  • 页码
  • 总页数 11
  • 原文格式 PDF
  • 正文语种
  • 中图分类
  • 网站名称 NASA
  • 栏目名称 所有文件
  • 关键词

  • 入库时间 2022-08-19 17:01:25
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