Motion damping in channelling effects and the chaotic behaviour of a system
沟道效应的运动阻尼与系统走向混沌的临界特征

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.