摘要
提出了一种多频振动筛——混沌动力吸振振动筛,建立振动筛力学模型和运动微分方程。并利用Melnikov函数,对振动筛产生混沌振动的必要条件进行了理论分析。分析表明在f/n>8.4947354k(m/kε)1/2情况下,振动筛将产生混沌振动。
The paper introduces a multi-frequency vibration screen——the chaotic vibrationscreen with dynamic damper, builds the mathematical model and motionally differential equation, and theoretically analyzes the essential conditions causing chaotic vibration by use of the Melnikov function. The analyzed results show that the vibration caused in the condition of f/n>8.4947354k(m/k)1/2 will be the chaotic vibration.
出处
《矿山机械》
北大核心
2003年第1期45-47,共3页
Mining & Processing Equipment
关键词
振动筛
混沌振动
力学模型
同宿轨道
相图
Vibration screen Dynamic damping Non-linear Chaotic Melnikov function
