Abstract

To reveal vibration characteristics of hydraulic excitation system based on the fluid-filled pipe, a hydraulic excitation testing system is developed, which mainly consist of an elastic plate connected with the pipe served as a vibrating unit. Its mathematical model is established, the evolutionary process of the three-dimensional and two-dimensional vibration trajectories is simulated. By comparison, the vibration trajectories of the two-dimensional vibrating screen are regular, and that of the three-dimensional vibrating screen is confused, but which has higher screening efficiency. So, served as a new vibration mode, the three-dimensional vibration trajectory based on the hydraulic excitation has more advantages than that of the two-dimensional.

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