Design and analysis of high and low frequency composite vibration device

The high and low frequency composite vibration is the most basic composite vibration in the multi-frequency vibration, which is the basis for studying the multi-frequency vibration. In this paper, the high and low frequency composite vibration device is designed by using the double eccentric block mechanism, and the optimized design and analysis are carried out. The vibration device can produce controllable amplitude, frequency and exciting force, can be applied to metal round bar separation experiments with high and low frequency composite vibration load, or the relevant study of metal fatigue.