Abstract: A mechanical system that possess solitary wave is studied. We model the dulums, in which the dynamic equation can be derived accordingly. Then we carry out system as N coupled pennumerical simulation with MATLAB. The simulation shows that the system permits three types of solitary wave solution. Moreover, the calculated velocity of solitary wave is in agreement well with the experimental measurement, which verifies the validity of our model.

Key words: mechanicalsolitary wave, numerical simulation, differential method, MATLAB