| 带桨间磁流变阻尼器的直升机"地面共振"开-关控制研究 |
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| 引用本文： | 曹雷团,顾仲权.带桨间磁流变阻尼器的直升机"地面共振"开-关控制研究[J].南京航空航天大学学报,2003,35(3):283-287. |
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| 作者姓名： | 曹雷团 顾仲权 |
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| 作者单位： | 南京航空航天大学直升机旋翼动力学国家重点实验室,南京,210016 |
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| 摘 要： | 防止直升机出现“地面共振”是直升机研制过程中必须解决的动力学问题。磁流变阻尼器作为可控阻尼器具有结构紧凑、功耗小及输出力大等优点。本文建立了带有桨间磁流变阻尼器的直升机“地面共振”空间模型运动方程,采用开—关(on—off)控制方法来抑制“地面共振”,并进行了仿真计算和控制结果分析。结果表明,采用桨间磁流变阻尼器抑制“地面共振”比粘弹性阻尼器有更好的可控性。
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| 关 键 词： | 直升机 磁流变阻尼器 地面共振 开－关控制 自激振动 |
| 文章编号： | 1005-2615(2003)03-0283-05 |
| 修稿时间： | 2003年2月18日 |
On-off Control for Ground Resonance of Helicopter Using Inter-Connected Blade Magnetorheological Dampers |
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| CAO Lei tuan,GU Zhong quan.On-off Control for Ground Resonance of Helicopter Using Inter-Connected Blade Magnetorheological Dampers[J].Journal of Nanjing University of Aeronautics & Astronautics,2003,35(3):283-287. |
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| Authors: | CAO Lei tuan GU Zhong quan |
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| Abstract: | One of the important problems needed to be solved in the helicopter research and development is to avoid "ground resonance". The Magnetorheological (MR) dampers are used as kinds of controllable dampers, which are compact, low operating power and a potential for sufficient forces for applications. The dynamic equations for spatial model of ground resonance of the helicopter with inter connected blade MR dampers are deduced. The on off control methodology is used to suppress the ground resonance. Simulations of the system and analysis for control effectiveness are made. Simulational results show that on off control scheme based on MR dampers can suppress ground resonance of helicopters effectively and the control performance by using inter connected blade MR dampers is better than visco elastic dampers. |
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| Keywords: | helicopters ground resonance MR dampers on off control |
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