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Volume 32 Issue 12
Dec.  2006
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Journal of Beijing University of Aeronautics and Astronautics  > 2006  >  32(12): 1403-1407.
HUANG Jun, HUAI Jin-peng, WU Zheet al. Optimization Selection in Conceptual Design of Advanced Trainer Aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(6): 656-659. (in Chinese)
Citation: Liu Xiangning, Xiang Jinwu. Study of aeroelastic tailoring of high-aspect-ratio flexible composite wing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(12): 1403-1407. (in Chinese)
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Study of aeroelastic tailoring of high-aspect-ratio flexible composite wing

  • School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 16 Dec 2005
  • Publish Date: 31 Dec 2006
    Abstract
  • The nonlinear government equations of the flutter problem of high-aspect-ratio flexible composite wing were derived from the most general aeroelasticequations with wing′s structure geometrical and aerodynamic nonlinearity being considered. Then the gradients of flutter speed and frequency of wing with respect to the design variables were deduced with analytical method. The influence of the composite wing′s configuration and ply angle on the flutter speed was revealed. It was concluded that the composite structure configuration that caused negative bending twist coupling was beneficial to wing′s flutter performances. An optimization design of a high-aspect-ratio flexible composite wing model was done with the flutter speed as object function and the composite plies as design variables. The best configuration and plies were obtained and the results obtained with analytical gradients of this paper and numerical difference gradients were compared at the same time.

     

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  • [1] Shirk M H, Hertz T J, Weisshaar T A. Aeroelastic tailoring-theory, practice and promise[J]. J Aircraft, 1986, 23(1):6-18 [2] Hollowell S J, Dugundji J. Aeroelastic flutter and divergence of stiffness coupled, graphite/epoxy cantilevered plates[J]. J Aircraft, 1984, 21(1):69-76 [3] Tischer V A, Venkayya V B. Ply orientation as a variable in multidisciplinary optimization . AIAA Paper 92-4793, 1944 [4] Patil M J. Aeroelastic tailoring of composite box beams . AIAA-97-0015,1997 [5] 修英姝, 崔德刚. 复合材料蜂窝夹层结构的优化设计[J]. 北京航空航天大学学报, 2004, 30(9):855-858 Xiu Yingshu, Cui Degang. Optimal design of composite sandwich structure[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(9):855-858(in Chinese) [6] Patil M J, Hodges D H. On the importance of aerodynamic and structural geometrical nonlinearities in aeroelastic behavior of high-aspect-ratio wings . AIAA-2000-1448,2000 [7] Tang D, Dowell E H. Experimental and theoretical study on aeroelastic response of high-aspect-ratio wings[J]. AIAA Journal, 2001, 39(8):1430-1441. [8] Patil M J, Hodges D H, Cesnik C E S. Characterizing the effects of geometrical nonlinearities on aeroelastic behavior of high-aspect-ratio wing Proceedings of the International Forum on Aeroelasticity and Structural Dynamics. Virginia:CEAS/AIAA/ICASE/NASE Langley, 1999 [9] Forsching H W. 沈史扬译.气动弹性力学原理[M]. 上海:上海科学技术文献出版社, 1982 Forsching H W. Translated by Shen Shiyang,Theory of aeroelasticity[M]. Shang Hai:Shanghai Scientific and Technical Literature Publishers, 1982(in Chinese) [10] Eastep F E, Tischler V A, Venkayya V B, et al. Aeroelastic tailoring of composite structures[J]. J Aircraft, 1999, 36(6):1041-1047 [11] Armanios E A, Badir A M. Free vibration analysis of anisotropic thin-walled closed section beams . AIAA-94-1327-CP,1994
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