| 一种综合研究颤振主动抑制的方法 |
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| 引用本文： | 陈青,胡兆丰.一种综合研究颤振主动抑制的方法[J].航空学报,1989,10(9):420-426. |
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| 作者姓名： | 陈青 胡兆丰 |
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| 作者单位： | 北京航空航天大学
(陈青)，北京航空航天大学(胡兆丰) |
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| 摘 要： | 本文研究了弹性飞机的颤振主动抑制就颤振发生的实质的讨论,提出一种研究颤振问题的探索性想法,即把对全系统颤振问题的研究归结到对其中少数有关的运动模态特性的研究。此一想法在颤振特性分析及颤振主动抑制方面得到具体的发挥,相应地产生了一种综合作图法和解析法特点的近似分析颤振特性的途径和一个具有明确物理意义的优化目标函数。后者一定程度上克服了常用的二次型优化方法所固有的某些弊病。算例结果表明本文提出的建议和方法具有一定的使用价值。
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| 关 键 词： | 颤振抑制 最优控制 运动稳定性 |
| 收稿时间： | 1988-10-01; |
A SYNTHETIC RESEARCH FOR AIRCRAFT ACTIVE FLUTTER SUPPRESSION |
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| Beijing University of Aeronautics and Astronautics Chen Qing and Hu Zhaofeng.A SYNTHETIC RESEARCH FOR AIRCRAFT ACTIVE FLUTTER SUPPRESSION[J].Acta Aeronautica et Astronautica Sinica,1989,10(9):420-426. |
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| Authors: | Beijing University of Aeronautics and Astronautics Chen Qing and Hu Zhaofeng |
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| Institution: | Beijing University of Aeronautics and Astronautics Chen Qing and Hu Zhaofeng |
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| Abstract: | In this paper a new idea to investigate flutter problem Is proposed, the new idea is that we may study only a tew modes of an aeroelastic system instead of studying the whole.In the light of it, an approach to analysing flutter characteristics, which combines the merit of graphic and analytic methods is presented. Also an optimal performance index with clear physical meaning. which can overcome some inherent drawbacks of linear quadratic technique, is developed. The paper has shown a numerical example of an elastic wing, and some comparison between this method and "v-g" method for calculating the critical point (Vf, Wf) are carried out as well. |
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| Keywords: | flutter suppression optimal control stability |
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