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首页> 外文期刊>Aerospace science and technology >Development and implementation of an advanced, design-sensitive method for wing weight estimation
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Development and implementation of an advanced, design-sensitive method for wing weight estimation

机译：机翼重量估算的先进，设计敏感的方法的开发和实现

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摘要

This paper presents the development of an advanced, quasi-analytical method for aircraft wing weight estimation and its detailed technical implementation. Similar to other quasi-analytical methods, it makes use of elementary wing box sizing techniques to compute the amount and distribution of material required to resist the applied loads, in combination with empirical methods to estimate all the other weight contributions. However, a new analytical derivation of the so-called airfoil effective distance parameter and a new advanced load estimation approach have been developed, which allow achieving a higher level of accuracy and design sensitivity than any other similar method found in literature. The proposed wing weight prediction method has been validated using data of various airplanes of different size, category and manufacturer. The computational time is dramatically lower than any finite element based sizing tool, while the achieved level of accuracy is comparable or even higher. Each weight prediction takes few seconds on a standard PC, while the average error on the total wing weight is consistently lower than 2%. The high level of design sensitivity allows the designers to assess the effect of design choices such as different airfoils and planform shapes, different structural layouts and materials, including both metal and composites, etc. The resulting combination of speed, accuracy and high level of design sensitivity makes of the proposed tool also a suitable asset for multidisciplinary design optimization studies.
机译：本文介绍了一种先进的，用于飞机机翼重量估计的准分析方法的开发及其详细的技术实现。与其他准分析方法类似，它利用基本机翼盒大小确定技术来计算抵抗施加的载荷所需的材料量和分布，并结合经验方法来估计所有其他重量贡献。然而，已经开发了所谓的翼型有效距离参数的新的分析推导和新的先进的载荷估计方法，与文献中发现的任何其他类似方法相比，它们可以实现更高水平的精度和设计灵敏度。所提出的机翼重量预测方法已经使用不同大小，类别和制造商的各种飞机的数据进行了验证。计算时间显着低于任何基于有限元的尺寸确定工具，同时所达到的精度水平相当甚至更高。在标准PC上，每次重量预测都需要花费几秒钟，而机翼总重量的平均误差始终低于2％。高水平的设计敏感性使设计人员能够评估设计选择的效果，例如不同的机翼和平面形状，不同的结构布局和材料（包括金属和复合材料等）。结果是速度，准确性和高水平设计的结合所提出的工具的敏感性使得它也是进行多学科设计优化研究的合适资产。

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  • 来源
    《Aerospace science and technology》 |2013年第1期|100-113|共14页
  • 作者

    A. Elham; G. La Rocca; M.J.L. van Tooren;

  • 作者单位

    Delft University of Technology, Kluyverweg 1, 2629HS Delft, The Netherlands;

    Delft University of Technology, Kluyverweg 1, 2629HS Delft, The Netherlands;

    Delft University of Technology, Kluyverweg 1, 2629HS Delft, The Netherlands;

  • 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

    Wing box weight; Weight estimation; Wing structure;

    机译：翼箱重量;体重估计;机翼结构;

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