振动磨碰撞质量时变性的混沌运动研究  

Chaotic Motion of a Vibromill with Impact-Mass Time-Varying Property

作　　者：朱岩[1] 王树林[1] 

机构地区：[1]上海理工大学动力工程学院,上海200093

出　　处：《矿山机械》2008年第7期61-64,共4页Mining & Processing Equipment

摘　　要：由于碰撞质量时变性的存在,振动磨系统呈现非线性特征。根据混沌运动的判别标准——相空间、Poincare 映射、功率谱及 Lyapunov 指数等,采用四阶 Rung-Kutta 数值方法对系统的非线性方程进行了求解。研究结果表明,当碰撞质量具有时变性时,振动磨系统将产生混沌运动。Being due to the time-varying property of its impact mass, a vibration mill is characterized by nonlinearity. On the basis of the discriminating means including the phase space method, Poincare map, power spectrum analysis and Lyapunov exponents, the non-linear equations of the system are solved using fourth order Rung-Kutta. The research results show that the motion of vibration system with time-varying impact mass is chaotic.

关 键 词：振动磨 碰撞质量 时李系统 混沌 

分 类 号：TH113.1[机械工程—机械设计及理论]