基于Wash-out滤波器技术的机翼颤振控制

O322%V211.41; 研究应用wash-out 滤波器技术对具有立方非线性俯仰刚度的二元机翼颤振的控制.首先,确定需要引入Hopf分岔的点,并在该点将原系统方程Jordan化;其次,对于引入的wash-out滤波控制器,先按Hopf分岔条件确定线性控制增益,再用规范型直接法得到受控系统的规范型,由分岔类型与规范型系数的关系确定非线性控制增益,从而将原系统的亚临界Hopf分岔变为超临界Hopf分岔;最后通过数值模拟验证了控制的有效性,并发现受控系统的颤振幅值(极限环大小)大大降低....

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Published in:中国航空学报（英文版） 2005, Vol.18 (2), p.130-137
Main Authors: 丁千, 王冬立
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王冬立
description O322%V211.41; 研究应用wash-out 滤波器技术对具有立方非线性俯仰刚度的二元机翼颤振的控制.首先,确定需要引入Hopf分岔的点,并在该点将原系统方程Jordan化;其次,对于引入的wash-out滤波控制器,先按Hopf分岔条件确定线性控制增益,再用规范型直接法得到受控系统的规范型,由分岔类型与规范型系数的关系确定非线性控制增益,从而将原系统的亚临界Hopf分岔变为超临界Hopf分岔;最后通过数值模拟验证了控制的有效性,并发现受控系统的颤振幅值(极限环大小)大大降低.
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