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�������պ����ѧѧ�� 2009, Vol. 35 Issue (6) :661-664    DOI:
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Lateral-directional flying quality characteristics of high aspect-ratio combat flying wings
Li Lin, Wang Lixin*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ����MIL-STD-1797A����Ʒ�ʹ淶,��չ����Դ�չ�ұȷ�����ս�ɻ���ת���ƫ�������Ʒ�����Ե��о�.���ſ���ϵͳ��ϵͳ��̬���Ե������õ�������ǿ,�ɷɻ�����������Ķ�̬��Ӧ���Բ����ѱ��Խ��ԽС,����ɻ��ıջ���תģ̬������ģ̬����ת-��������񵴡�������ģ̬����ʻԱ��λ���IJ�����ٶȵȾ��ɴﵽ�Ϻõķ���Ʒ��,����̬��ƽ������Ҫ�ܹ��͵�Ӱ��,������ȫ�������Ʒ�ʵ�Ҫ��;�����˴�չ�ұȷ�����ս�ɻ��ڿ��ٹ�ת������𽵺ͷǶԳ����������µĶԹ�ת���ƫ�������Ч�ܵ�Ҫ��,�����������ͺͲ��������õȲ���,��չ�ұȷ�����ս�ɻ������ijЩ��������ʱ�Բ���Ч�ܵ������볣�湹�͵ķɻ������Žϴ����.
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Abstract�� The roll and yaw axes flying qualities of high aspect-ratio combat flying wings were assessed, based on MIL-STD-1797A. With the adjustment and improvement provided by the proper-designed flight control system, the closed-loop dynamic response characteristics of flying wings, such as roll mode, spiral mode, roll-spiral coupling, dutch roll mode, lateral acceleration at pilot station and so on, were improved a lot inspite of the differenct configurations, but the static trimming characteristics can not entirely meet the criterion on account of the all-wing configuration. Roll axis and yaw axis control power requirements of roll maneuver, crosswind takeoff and landing, asymmetric thrusts were studied, and in some cases the control power requirements of combat flying wings are quite different with those of the conventional-configuration combat airplanes, due to the disappearance of vertical tail and rudders and the appearance of the new-style control effectors set.
Keywords�� high aspect ratio   flying wing   flying qualities   control power     
Received 2008-05-22;
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About author: �� ��(1981-),��,ɽ��������,��ʿ��,aerolee@ase.buaa.edu.cn.
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�� ��, ������.��չ�ұȷ�����ս�ɻ��ẽ�����Ʒ������[J]  �������պ����ѧѧ��, 2009,V35(6): 661-664
Li Lin, Wang Lixin.Lateral-directional flying quality characteristics of high aspect-ratio combat flying wings[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(6): 661-664
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