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�������պ����ѧѧ�� 2010, Vol. 36 Issue (12) :1400-1403    DOI:
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Sliding mode variable structure control of flutter suppression for two-dimensional wing
Song Chen, Wu Zhigang, Yang Chao*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ������������(AFS,Active Flutter Suppression)�����������ۺ��о��Ļ�Ծ��֧,�Է�������ƾ�����Ҫ����.�Դ���Ե������Ķ�Ԫ����Ϊ����,�о���ģ����(SMC,Sliding Mode Control)������������AFS�Ŀ����������.����׼�������������۽�����Ԫ������������ϵͳģ��,���SMC�Ļ�ģ�л��漰״̬���������л�����,��ʵ���ܿض���AFS,����ռ�״̬���ߵĽǶ�,����SMCʹ�ջ�ϵͳ�ȶ��ĸ�Դ.����,����SMC��³���Լ���ʱЧӦ���˷���������.�о�����:�ÿ��Ʋ��Կ�����AFS,�����������������Ʒ������Ӧ��ǰ��.
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Abstract�� Active flutter suppression (AFS), an attractive branch of aeroelasticity, and playing an important role of aircraft design was conducted on a two-dimensional wing which had a tailing-edge control surface. Sliding mode control (SMC) for AFS and its feasibility were investigated theoretically. The basic equations of motion were established by using quasi-steady aerodynamics forces. A sliding mode surface and a state feedback control for switching were designed in state space to achieve AFS. The principle of system stability provided by the SMC was discussed by state variables trajectory analysis. Further discussions about system robustness and time delay effects were also given. The results indicate that SMC strategy could be used for AFS and has potential usefulness in active aeroelastic control.
Keywords�� aeroelasticity   airfoils   flutter   sliding mode control   state feedback     
Received 2009-10-12;
Fund:

������Ȼ��ѧ����������Ŀ(90716006, 10902006)

About author: �� ��(1982-),��,�ӱ�������,��ʿ��,sc16710@ase.buaa.edu.cn.
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�γ�, ��־��, �.��Ԫ����ģ��ṹ���Ʋ�����������[J]  �������պ����ѧѧ��, 2010,V36(12): 1400-1403
Song Chen, Wu Zhigang, Yang Chao.Sliding mode variable structure control of flutter suppression for two-dimensional wing[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(12): 1400-1403
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