Method for establishing multi-scale model of medicament particles during powder compaction process of long thin metal pipe

Abstract

The invention discloses a method for establishing a multi-scale model of medicament particles during a powder compaction process of a long thin metal pipe, and belongs to the field of computer simulation analysis. The method specifically comprises the following steps of (1) establishing a long thin metal pipe model; (2) establishing a medicament particle adding model; (3) establishing a medicament particle model; (4) establishing a long thin metal pipe compaction action model; (5) carrying out compaction simulation by utilizing discrete meta models which are established from the step (1) to the step (4). According to the method for establishing the multi-scale model of the medicament particles during the powder compaction process of the long thin metal pipe, disclosed by the invention, through establishing a multi-scale compaction model of the powder particle, the movement of the medicament particles at the inner part of the long thin metal pipe and a density changing process of the medicament particles in a compaction action are simulated by utilizing a computer, and a feasible theory basis is provided for a compaction technology of a compaction device based on impact vibration.

Description

technical field [0001] The invention relates to the field of computer simulation analysis, in particular to a method for establishing a multi-scale model of medicament particles in the powder compaction process of a slender metal tube. Background technique [0002] The compaction of powder particles in long and thin metal tubes is a difficult point in the production of pyrotechnic charges. Because pyrotechnics have high requirements on the density and uniformity of the medicament particles in the slender metal tube, the tamping density of the slender metal tube medicament particles has become a key factor affecting the quality of the pyrotechnic product. At present, my country's pyrotechnic products still adopt the manual production mode of single mode and single shot. In this production mode, there are the following problems: (1) poor product consistency; (2) high labor intensity and low production efficiency; (3) Health and safety hazards to operators. In view of these pr...

AI Technical Summary

Problems solved by technology

At present, my country's pyrotechnic products still adopt the manual production mode of single mode and single shot. In this production mode, there are the following problems: (1) poor product consistency; (2) high labor intensity and low production efficiency; (3) Health and safety hazards to operators

[0004] At present, multi-scale modeling methods are widely used in geotechnical, mining, agriculture, chemical, pharmaceutical, and environmental fields, but the multi-scale modeling of agent particles in the process of powder compaction in slender metal tubes has yet to be studied

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