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�������պ����ѧѧ�� 2003, Vol. 29 Issue (12) :1087-1090    DOI:
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л����, ��־��, �*
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Aeroelastic analysis of flexible large aspect ratio wing
Xie Changchuan, Wu Zhigang, Yang Chao*
School of Aeronautics Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� Aeroelastic phenomena are significant for high-altitude long-endurance aircrafts for the large aspect ratio wing. The effect of structural geometric-nonlinear on wing dynamic characteristics and the changes of unsteady aerodynamics due to the large static deformation of wing were studied. The wing flutter was carried out based on the result of large deflected wing vibration analysis using quasi-linear method and its unsteady aerodynamics by strip theory. Through the calculation of the wing, it can be concluded that the flutter speed decreases significantly under large deformation.
Keywords�� flutter   aeroelasticity   geometric-nonlinear   large aspect ratio wing   unsteady aerodynamics     
Received 2003-06-30;
About author: л����(1976-),��,����������,��ʿ��, xiechangc@sina.com.
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л����, ��־��, �.��չ�ұ����Ի�����������Է���[J]  �������պ����ѧѧ��, 2003,V29(12): 1087-1090
Xie Changchuan, Wu Zhigang, Yang Chao.Aeroelastic analysis of flexible large aspect ratio wing[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2003,V29(12): 1087-1090
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