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Simulation design method of penetration explosive loading combination structure

A charge combination and simulation design technology, applied in calculation, special data processing applications, instruments, etc., can solve the problem of low statistical results and achieve high data reproducibility, high efficiency, and small errors

Active Publication Date: 2018-01-09
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method only counts the fragment information by analyzing the material number of the LS-DYNA calculation result file, and it is easy to cause the statistical results to be lower than the actual test results due to calculation result oscillation and material erosion failure.

Method used

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  • Simulation design method of penetration explosive loading combination structure
  • Simulation design method of penetration explosive loading combination structure
  • Simulation design method of penetration explosive loading combination structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step S1, start the LS-DYNA finite element analysis software, run the Mechanical mechanical analysis module, start the LS-DYNA finite element analysis software, select structural analysis, check the Structural type, determine that the problem is a collision analysis type, select the explicit solution method, and check Select the Explicit type;

[0034] Step S2, select the 3D solid Solid164 unit, adopt a quarter symmetric structure when constructing the model, create line, surface, and body structures layer by layer from the creation of key points, and use bottom-up modeling to construct the explosive device. Combination structure model of the drug, the appearance size of the model is (diameter Ф90mm) × (length 850mm), build the charge shell structure, the appearance size (thickness 20mm), build a deep penetration hard target model, the appearance size of the model is (diameter Ф1500mm )×(length 1500mm);

[0035] Step S3, select the material model and create and modify t...

Embodiment 2

[0043] Step S1, start the LS-DYNA finite element analysis software, run the Mechanical mechanical analysis module, start the LS-DYNA finite element analysis software, select structural analysis, check the Structural type, determine that the problem is a collision analysis type, select the explicit solution method, and check Select the Explicit type;

[0044] Step S2, select the 3D solid Solid164 unit, adopt a quarter symmetric structure when constructing the model, create line, surface, and body structures layer by layer from the creation of key points, and use bottom-up modeling to construct the explosive device. Combination structure model of the drug, the appearance size of the model is (diameter Ф100mm) × (length 950mm), build the charge shell structure, the appearance size (thickness 25mm), build a deep penetration hard target model, the appearance size of the model is (diameter Ф2000mm )×(length 2000mm);

[0045] Step S3, select the material model and create and modify ...

Embodiment 3

[0053] Step S1, start the LS-DYNA finite element analysis software, run the Mechanical mechanical analysis module, start the LS-DYNA finite element analysis software, select structural analysis, check the Structural type, determine that the problem is a collision analysis type, select the explicit solution method, and check Select the Explicit type;

[0054] Step S2, select the 3D solid Solid164 unit, adopt a quarter symmetric structure when constructing the model, create line, surface, and body structures layer by layer from the creation of key points, and use bottom-up modeling to construct the explosive device. Combination structure model of the drug, the appearance size of the model is (diameter Ф95mm) × (length 700mm), build the shell structure of the charge, the appearance size (thickness 30mm), build a deep penetration hard target model, the appearance size of the model is (diameter Ф1000mm )×(length 1000mm);

[0055] Step S3, select the material model and create and m...

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Abstract

The invention relates to a simulation design method of a penetration explosive loading combination structure. Simulation design is conducted when the explosive loading combination structure conducts deep penetration on hard targets, model parameters and calculation scales of outer layer and inner layer explosive loading materials of the explosive loading combination structure are subjected to optimization stable design analysis, and cognition and understanding of characteristic rules in the penetration process of the explosive loading combination structure are deepened. The simulation design method of the penetration explosive loading combination structure has the advantages of high efficiency, good reliability, high guidance and like, and the research and development level of the explosive loading combination structure is improved.

Description

technical field [0001] The invention belongs to a simulation design method of an explosive charge, and relates to a simulation design method of a penetrating explosive charge combined structure. Background technique [0002] The continuous development of science and technology has promoted the gradual improvement of military target protection capabilities. In order to be able to effectively strike and damage such targets, the research and development of penetrating kinetic energy weapons has become a research hotspot in the field of weapons and ammunition to a certain extent. Loading combined structure explosive charge in this kind of fortified weapon can effectively improve the striking ability of the ammunition to the predetermined target. Combination structures of explosive charges will play an important role in more and more deep penetration weapons. [0003] At present, most studies on the combined structure of explosive charges are carried out by combining traditiona...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 刘瑞鹏贾宪振王永顺谢中元郑林
Owner XIAN MODERN CHEM RES INST
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