Abstract: The solitary wave solutions of sine-Gordon equation hold an important status in nonlinear physics. However, this solitary wave cannot be motivated easily contrasting with solitary water wave, it is usually generated in microcosmic aspect, we design a macro device to simulate the solitary wave solutions of sine-Gordon equation approximately. In the theoretical analysis we demonstrate that the wave is actually the solitary one and discuss its characteristics of the stable motivation, the speed and the collision.

Key words: solitary wave, sine-Gordon equation, macro simulator