Harmonically forced bar considering the Peierls Nabarro force and viscous effect of solid with Neumann boundary conditions is simulated with Sine Gordon type equation.

• 研究了简谐外力扰动下；计入PeierlsNabarro力和固体粘性效应；在Neumann边界条件下杆的运动；这个运动可以用SineGordon型方程来模拟.