Three-Dimensional Resultant Vibration Based on Hydraulic Excitation

摘要

For studying a three-dimensional vibrating screen based on the fluid-filled pipe, a vibration testing system based on hydraulic excitation was established. The pressure wave generated from the vibration exciter will stimulate the pipe network to vibrate. The elastic plate served as the vibrating screen whose dynamic characteristics can be revealed by experiments. According to the measured signals, the two-dimensional and three-dimensional resultant vibration trajectories were obtained. By comparison, the three-dimensional vibration trajectory is more complicated. Furthermore, served as the three-dimensional vibration screen whose screening efficiency is more higher, indicating that the three-dimensional vibrating screen based on the hydraulic excitation has been verified effectively. So we can conclude that a new vibration mechanism is found and this work is expected to serve for the optimum design of the hydraulic excitation system and play a guiding role to experimental research in future.