Volume 33 Issue 07
Jul.  2007
Turn off MathJax
Article Contents
Ma Tielin, Ma Dongli, Zhang Huaet al. Aerodynamic characteristic analysis of high-aspect ratio elastic wing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(07): 781-784. (in Chinese)
Citation: Ma Tielin, Ma Dongli, Zhang Huaet al. Aerodynamic characteristic analysis of high-aspect ratio elastic wing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(07): 781-784. (in Chinese)

Aerodynamic characteristic analysis of high-aspect ratio elastic wing

  • Received Date: 28 Jun 2006
  • Publish Date: 31 Jul 2007
  • The aerodynamic performance and flying safety of long-endurance unmanned aerial vehicle (UAV) are largely affected by the aeroelastic distortion of its high-aspect ratio wing. High-aspect ratio wing of UAV is bended and twisted by the air load during flight and couldn-t be treated as a traditional rigid wing. The effect of static aeroelastic distortion to the aerodynamic characteristic for a real high-aspect ratio sweepforward wing of composite material under different load statuses was analyzed. The integrated design method combined aerodynamic with structural was adopted in this analysis using associated computational fluid dynamics (CFD) program FLUENT and computational structual dynamics (CSD) program NASTRAN. The result shows a lift-drag ratio drop and a remarkable increase on rolling and yawing moments which affect the portrait and lateral aerodynamic performance of UAV negatively. The result also shows that the CFD/CSD coupling computational methodology is reliable to be used aerodynamic-structural integrated design of elastic wing.

     

  • loading
  • [1] Palacios R, Cesnik C. Static nonlinear aeroelasticity of flexible slender wings in compressible flow . AIAA-2005-1945,2005 [2] 邓立东,李天. 柔性飞机的非线性飞行载荷计算研究[J].飞行力学,2004,22(4):85-88 Deng Lidong, Li Tian. Research of nonlinear flight loads calculation on a flexible aircraft[J]. Flight Dynamics, 2004, 22(4):85-88(in Chinese) [3] Pesonen U, Agarwal R. Artificial network prediction of aircraft aeroelastic behavior . AIAA-2002-0947, 2002 [4] Gumbert C, Newman P, Hou G. Effect of random geometric uncertainty on the computational design of a 3-D flexible wing . AIAA-2002-2806,2002 [5] Panza J, Mak S. Aeroservoelastic analysis of a NASA-ALTAIR air vehicle . AIAA-2003-6500,2003 [6] 徐敏,安效民,陈士橹. 一种CFD/CSD耦合计算方法[J].航空学报,2006,27(1):33-37 Xu Min, An Xiaomin, Chen Shilu. CFD/CSD couping numerical computational methodology[J]. Acta Aeronautica et Astronautica Sinica, 2006,27(1):33-37(in Chinese) [7] 刘金辉.考虑弹性变形的机翼气动-结构多学科优化设计 . 西安:西北工业大学,翼型、叶栅空气动力学国防科技重点实验室, 2005 Liu Jinhui. Multidisciplinary aerodynamic-structure optimization design of the elastic wing .Xi-an:National Key Laboratory of Aerodynamic Design and Research, Northwestern Polytechnical University, 2005(in Chinese) [8] B.埃特肯著. 大气飞行动力学[M]. 北京:科学出版社,1979 Etkin B. Dynamics of atmospheric flight [M]. Beijing:Science Press, 1979(in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(4473) PDF downloads(2086) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return