Simulation Analysis and Experimental Particle Collision Damping Vibration Reduction Theory for Low Vibration Vertical Mill

  • Wenhuan Liu,Hui Li, Pinjing Xu et al.

Abstract

Intelligent computing and simulation is a very important method in the study of Vibration Reduction of mechanical vibration. The elastic-plastic collision process of two Particle damping spheres is calculated and simulated intelligently by using finite element simulation software. The increase of the filling rate of Damping particle can increase the damping of the system, which causes the amplitude to decrease and produces a significant vibration reduction effect. Consistent with the theory. When the particle filling rate is low (30%), the amplitude of the system gradually decreases with the increase of the excitation frequency at the same filling rate, which is also consistent with the theory. The greater the excitation frequency, the greater the collision speed of the Damping particle, the corresponding energy loss factor increases, the more obvious the energy loss to the vibration system, the more obvious the Vibration Reduction effect, and the lower the system amplitude. The law is in good agreement with the simulation analysis of the energy consumption of the two-ball collision of equal diameter. The simulation results are verified by the experimental data.

Published
2019-07-27