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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers >A systems engineering approach to variable intakes for civil aviation
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A systems engineering approach to variable intakes for civil aviation

机译：用于民航变量摄入的系统工程方法

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摘要

A systems engineering approach to develop variable nacelle intakes for aero engines in civil aviation is presented. The goal of this methodical approach is to find solutions to design problems that can be successfully utilised in aviation without further effort during the certification. By using variable intakes, aircraft and aero engine manufacturers can fulfil their customers' needs for safe, efficient and fast travelling. Therefore, a system shall be installed which is able to modify the nacelle intake contour between two extrema. On the one hand, a sharp thin contour, which produces low drag and allows to fly faster or more efficiently, is optimal during cruise condition. On the other hand, a round thick intake lip is necessary to avoid flow separations with the potential to cause dangerous events during take-off and climb conditions. The utilised systems engineering approach is introduced. The executed steps and methods used for creating and evaluating concept variants for variable intakes are displayed particularly. Those contain the determination and evaluation of requirements and functions as well as the generation and assessment of concepts. Finally, yet importantly, following tasks are presented.
机译：提出了一种用于开发民用航空航空航空发动机变量机舱摄入量的系统工程方法。这种方法方法的目标是找到解决可以在认证期间无需进一步努力在航空中成功使用的问题的解决方案。通过使用可变摄入量，飞机和航空发动机制造商可以实现客户的安全，高效和快速旅行的需求。因此，一个系统应安装，其能够修改两个极值之间的机舱进气轮廓。一方面，尖锐的薄轮廓，其产生低阻力并允许飞得更快或更有效，是巡航条件期间最优的。另一方面，圆厚的进气唇是必要的，以避免流动分离，其中潜力在起飞和爬升条件下引起危险事件。介绍了利用系统工程方法。用于创建和评价可变摄入概念变体的执行的步骤和方法特别显示。那些包含对概念的要求和功能的确定和评估以及对概念的产生和评估。最后，重要的是，提出了以下任务。

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