| 在非定常气动力作用下弹性飞行器的动稳定性及主动控制 |
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| 引用本文： | 陈士橹,唐硕,严恒元,霍秀芳,祝小平.在非定常气动力作用下弹性飞行器的动稳定性及主动控制[J].航空学报,1993,14(12):561-566. |
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| 作者姓名： | 陈士橹 唐硕 严恒元 霍秀芳 祝小平 |
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| 作者单位： | 西北工业大学八系，西北工业大学八系，西北工业大学八系，西北工业大学八系，西北工业大学八系 西安 710072，西安 710072，西安 710072，西安 710072，西安 710072 |
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| 基金项目： | 国家自然科学基金，航空科学基金 |
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| 摘 要： | 首先导出了在非定常气动力作用下的弹性飞行器纵向运动方程。而后就简化的非定常气动力数学模型提出了分析气动弹性对飞行器稳定性影响的方法。并从有效抑制飞行器的弹性振动角度研究主动反馈控制、操纵面及陀螺位置合适选择的最优综合设计问题。
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| 关 键 词： | 非定常气动力 弹性飞行器 动稳定性及主动控制 |
DYNAMIC STABILITY AND ACTIVE CONTROL OF ELASTIC VEHICLES WITH UNSTEADY AERODYNAMIC FORCES |
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| Chen Shi-lu,Tang Shuo,Yan Heng-yuan,Huo Xiu-fang,Zhu Xiao-ping.DYNAMIC STABILITY AND ACTIVE CONTROL OF ELASTIC VEHICLES WITH UNSTEADY AERODYNAMIC FORCES[J].Acta Aeronautica et Astronautica Sinica,1993,14(12):561-566. |
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| Authors: | Chen Shi-lu Tang Shuo Yan Heng-yuan Huo Xiu-fang Zhu Xiao-ping |
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| Institution: | Eighth Department of Northwestern Polvtechnical University, Xi'an, 710072 |
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| Abstract: | In this paper, stability problem of elastic vehicles is studied with the effect of unsteady aerodynamic forces considered. Longitudinal equations of disturbance motions with the actions of unsteady aerodynamic forces are derived. A method of analysis of the effect of aeroelasticity on the stability of elastic vehicles by using a simplified mathematical model of unsteady aerodynamic forces is proposed. Also synthesis of the optimal design of active control system is studied from the view-point of coordinating the design of the active feedback control with the choice of positions of control surfaces and sensors(gyros) locations from the stand point for the efficient suppression of elastic vibrations of the vehicle. |
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| Keywords: | unsteady aerodynamic forces elastic vehicles dynamic stability and active control |
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