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Discrete element analysis method of slender type metal tube drug tamping state

An analysis method and metal tube technology, applied in the field of discrete element analysis, can solve problems such as low production efficiency, poor product consistency, and high labor intensity, and achieve the effect of improving the effect

Active Publication Date: 2013-06-26
贺州市八步区市场监督管理局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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, the discrete element method is widely used in the fields of geotechnical, mining, agriculture, chemical industry, pharmaceuticals and the environment, but no one has done research on the discrete element analysis of the tamping state of the slender metal tube

Method used

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  • Discrete element analysis method of slender type metal tube drug tamping state
  • Discrete element analysis method of slender type metal tube drug tamping state
  • Discrete element analysis method of slender type metal tube drug tamping state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] Step 1: Establishment of the slender metal pipe model

[0117] Establish a hollow cylindrical wall to simulate the slender metal pipe, set the effective side of the cylindrical wall to point to the inside of the cylindrical wall, and the wall id=1; establish a bottom wall at the bottom of the cylindrical wall to block The head is simulated, and the effective side of the wall at the bottom is set upward, and the wall id=2; the slender metal tube is easy to deform, so its stiffness setting order of magnitude is lower than that of the infinite plane on the ground. Slender metal tube model such as image 3 As shown, its specific parameters are as follows:

[0118] The height of the cylindrical wall is H_cylinder=0.5m;

[0119] The radius of the bottom surface of the cylindrical wall is rad=0.05m;

[0120] Step 2: Establishment of drug particle feeding model

[0121]Establish a funnel-shaped wall to simulate the feeding model of pharmaceutical particles, set its effectiv...

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Abstract

The invention discloses a discrete element analysis method of slender type metal tube drug tamping state, and relates to the field of computer model analysis. The method comprises the following steps: 1) establishing a slender type metal tube model; 2) establishing a drug particle feeding model; 3) establishing a drug particle model; 4) simulating of the tamping action of the slender type metal tube; 5) observing the movement, of the drug particles in the slender type metal tube and the drug particle density change process in the tamping action in simulation mode by using the established discrete element model.

Description

technical field [0001] The invention relates to the field of computer simulation analysis, in particular to a discrete element analysis method for simulating the tamping process of slender metal tubes. Background technique [0002] The tamping of powder particles in slender metal tubes is a difficult point in the production of pyrotechnic products. The density of powder particles in slender metal tubes is high for pyrotechnic products. The key factor of product quality can ensure that indicators such as linear density meet the quality requirements of pyrotechnic products. 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 problems, based on the principle of vertical impact vibration compaction, a compacting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 林景栋吕函珂谢杨林湛丁吴芳徐春慧廖孝勇程森林张东京
Owner 贺州市八步区市场监督管理局
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