Experimental device and method for measuring particle substance vibration

Abstract

The invention discloses an experimental device and method for measuring particle matter vibration. The device comprises a force transmission lead screw, a spring, a force sensor, a pressing rod, an upper cavity, a main cavity, a lower cavity and an air supply system. The upper cavity and the lower cavity are fastened and connected through a screw rod, and the main cavity is clamped between the upper cavity and the lower cavity to form a vertically-through sealed air cavity. The main cavity is formed by integrally processing a transparent acrylic material and is filled with particulate matters,a piston type pressure head capable of moving up and down is arranged at the top end of the main cavity, and the bottom of the main cavity is supported by an air inlet filter plate welded on the lower cavity; a pressing rod is mounted at the top of the cavity; the bottom of the lower cavity is connected with the vibrating table through flange bolts; the air outlet connecting pipe of the upper cavity and the air inlet connecting pipe of the lower cavity are respectively connected with an air supply system, and a flow meter and a pressure meter are installed on the connecting pipes. According to the invention, the thermal stress environment of particles in the cladding can be fully simulated, and the motion state of the particles under vibration can be observed while the pressure load is applied to the particle substances.

Description

technical field [0001] The invention belongs to the technical field of particle material vibration dynamics measurement, and in particular relates to an experimental device and method for measuring particle material vibration. Background technique [0002] Granular matter is a system composed of a large number of discrete solid particles. Granular matter has the fluidity of fluid and the strong compression resistance of solid, so it is widely used in industrial fields. In the solid cladding design of a fusion reactor, tritium breeders and neutron multipliers are designed and manufactured as spherical particles. [0003] Under the excitation of vertical vibration, the separation phenomenon of the mixture of particulate matter will occur, such as the "Brazil nut" effect, that is, after the mixed particles are subjected to vertical vibration, the large particles float to the surface, while the small particles sink to the bottom layer. However, due to the complexity of the part...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the existing devices that cannot measure the moving flow field of the particles, and the lack of particle pressurization equipment and gas supply system, the present invention proposes an experimental device and method for measuring the vibration of particulate matter, which is used to measure the vibration of particles after being subjected to vertical vibration. exercise state

Images