机构地区: 东莞理工学院
出 处: 《物理学报》 2004年第4期1157-1161,共5页
摘 要: 利用正弦平方势 ,把粒子运动方程化为具有运动阻尼和周期调制的摆方程 .利用Melnikov方法分析了系统的全局分叉和混沌行为 。 The equation of motion of particles has been reduced to the pend ulum equation with a damping term and a forced term by using the sine_squared potential.The global bifurcatio n an d chaotic behaviours have been analysed using Melnikov technique, and it is show n that the enhancement of the radiation background and the random phenomen on of th e channelling efect are related to chaotic behaviours of the system.