航空学报 > 2019, Vol. 40 Issue (2): 522359-522359   doi: 10.7527/S1000-6893.2018.22359

支撑翼布局客机总体参数对结构重量的影响

张新榃, 张帅, 王建礼, 周彬   

  1. 中国商飞北京民用飞机技术研究中心, 北京 102209
  • 出版日期:2019-02-15 发布日期:2018-10-17
  • 通讯作者: 张帅 E-mail:zhangshuai1@comac.cc

Effect of primary parameters on structure weight of civil aircraft with strut-braced wing

ZHANG Xintan, ZHANG Shuai, WANG Jianli, ZHOU Bin   

  1. COMAC Beijing Aeronautical Science and Technology Research Institute, Beijing 102209, China
  • Online:2019-02-15 Published:2018-10-17

摘要: 针对支撑翼布局客机在总体设计阶段对结构重量分析评估的需求,建立结构重量与支撑翼总体参数之间的定量描述关系。利用有限元分析求解工程梁模型的方法建立考虑静强度和颤振约束的支撑翼结构分析模型,采用全速势方程加边界层修正的方法建立气动载荷计算模型,在此基础上建立支撑翼总体参数与主承力结构尺寸的优化流程,实现支撑翼结构概念设计优化及重量分析。以支撑翼客机为对象的算例研究表明,应用这一优化流程能够分析总体参数对结构重量的影响规律,并实现定量描述,可以为支撑翼布局客机概念方案设计提供技术支持和数据参考。

关键词: 支撑翼布局, 客机, 总体参数, 结构重量, 气动弹性, 概念方案

Abstract: In conceptual design of the strut-braced wing airliner, the quantitative relations between primary parameters and the structure weight is established to achieve the requirements on structure weight evaluation. This paper proposes a two-level optimization approach for structure conceptual design and weight analysis of strut-braced wing. Based on the finite element method used in the beam modeling, an analysis model for strut-braced wing structure is established, considering strength and flutter as constraints. Based on the full potential equation with boundary layer correction, an aerodynamic load model is established. An civil aircraft with strut-braced wing is investigated as an example to verify the approach. The results indicate that this approach could analyze the effect of primary parameters on the structure weight, and obtain quantitative descriptions, providing technical support and reference data for conceptual design of strut-braced airliner.

Key words: strut-braced wing, airliner, primary parameter, structure weight, aeroelasticity, conceptual design

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