摘要
利用多重尺度结合准连续性近似方法,我们研究了处于恒定外加激励强度作用下的β-FPU链的非线性特性, 首次在β-FPU链中得出了耗散型非线性Schrodinger方程。
By virtue of the method of multiple-scale combined with quasi-discrete approximation, we investigated the nonlinear properties of β - FPU with invariable vibratile force. It is shown that dissipation nonlinear Schrodinger equation of β - FPU chain is first obtained analytically.
