| 外激励作用下亚音速二维壁板分岔及响应研究 |
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| 引用本文： | 李鹏,杨翊仁,鲁丽.外激励作用下亚音速二维壁板分岔及响应研究[J].力学学报,2011,43(4):746-754. |
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| 作者姓名： | 李鹏 杨翊仁 鲁丽 |
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| 作者单位： | 1.西南交通大学 牵引动力国家重点实验室 |
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| 基金项目： | 国家自然科学基金(10972185); 中央高校基本科研业务费专项资金(2010Z707); 高等学校博士点基金新教师基金(20070613032)资助项目~~ |
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| 摘 要： | 研究了亚音速流中二维壁板在外激励作用下的分岔和响应问题. 采用Galerkin方法将非线性运动控制方程离散为常微分方程组. 采用Runge-Kutta数值方法进行了数值计算,研究了壁板系统非单周期区在参数空间的分布情况. 结果表明: 在参数空间中, 非单周期区和单周期区会交替出现; 在不同的单周期区内, 系统运动轨线也在有规律的变化; 系统由单周期运动进入混沌运动是经过一系列周期倍化分岔产生的.
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| 关 键 词： | 混沌 |
| 收稿时间： | 2010-03-24 |
| 修稿时间： | 2010-05-27 |
BIFURCATION AND RESPONSES ANALYSIS OF TWO-DIMENSION PANEL WITH EXTERNAL EXCITATION IN SUBSONIC FLOW |
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| Li Peng Yang Yiren Lu Li.BIFURCATION AND RESPONSES ANALYSIS OF TWO-DIMENSION PANEL WITH EXTERNAL EXCITATION IN SUBSONIC FLOW[J].chinese journal of theoretical and applied mechanics,2011,43(4):746-754. |
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| Authors: | Li Peng Yang Yiren Lu Li |
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| Institution: | 1.National Traction Power Laboratory, Southwest Jiaotong University, Chengdu 610031, China2.School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | Along with the development of high speed multiple unite train and intercity railroad,the high speed technology has become the development direction of train.With the increase of speed,the aerodynamic problems of such train are emerging,while neglected in low speed.Future trains will increase their speeds substantially,and if so,aerodynamic forces may influence train running safety and affect passenger's comfort. So the aeroelasticity of high speed train is the problem to be urgently and promptly solved.Beca... |
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| Keywords: | panel subsonic flow parameter planes doubling-period bifurcation chaos |
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