To separate these frequencies, we make a local modification to mass and stiffness of the handle and results in the vibration on the handle of walking tractor to reduce considerably.

Based on the principle of equivalent mass, it tests the impelling vibration in sonic wave vibration system, introduces the experiment condition and process.

Firstly, the influence of width of water body and height of water level to vibration property of structure was calculated, according to the finite field addition mass method.