一类单边刚性碰撞系统的分岔与混沌控制
方晨圆
(兰州交通大学 机电工程学院,甘肃 兰州 730070)
摘要:研究了一类单自由度刚性碰撞系统的分岔和混沌运动。建立系统周期运动的Poincaré映射,通过数值仿真揭示了系统通过倍化分岔通向混沌的道路和系统的周期运动、混沌运动。最后运用外加恒定载荷控制方法对系统的混沌运动进行了有效的控制,使系统达到不同的周期轨道。
关键词:周期运动;Poincaré映射;分岔;混沌控制
中图分类号:O322              文献标志码:A         文章编号:1006-0316 (2014) 02-0019-04
Bifurcation and chaotic control of a unilateral stiffness vibration system
FANG Chen-yuan
( School of Mechanical and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China )
Abstract:The bifurcation and chaotic motion of a single-degree-of-freedom stiffness vibration system is studied, the Poincaré mapping of the periodic motion in the system is established. Periodic motion, chaotic motion of the system and the routes from doubling bifurcation to chaos by numerical simulation are revealed. At last, the controlling method of applied constant load is used in controlling the chaotic motion of the system from doubling bifurcation to chaos. Therefore, the motion goes to different periodic orbits.
Key words:periodic motion;Poincaré mapping;bifurcation;chaotic control
 
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收稿日期:2013-07-22
作者简介:方晨圆(1989-),男,甘肃临夏人,硕士研究生,主要研究方向为非线性动力学、混沌与非线性振动。
 

 

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