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Refinement method of permissible depth curve of gun barrel pressure pit

A kind of artillery barrel, refined technology, applied in the direction of design optimization/simulation, geometric CAD, special data processing applications, etc., can solve the problem that the firing conditions of artillery are very different, the allowable depth curve of the pressure crater changes, and it has not been mentioned. question

Active Publication Date: 2020-12-01
PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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  • Application Information

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Problems solved by technology

However, the actual shooting conditions of the artillery vary greatly. For example, when shooting under the conditions of different charge numbers, different drug temperatures, different chamber growth, and different bullet weights, the pressure curve of the artillery varies greatly, so the pressure pit allows The depth curve is bound to change
[0005] At present, the idea of ​​refining the allowable depth curve of the gun barrel pressure pit has not been mentioned

Method used

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  • Refinement method of permissible depth curve of gun barrel pressure pit
  • Refinement method of permissible depth curve of gun barrel pressure pit
  • Refinement method of permissible depth curve of gun barrel pressure pit

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Embodiment Construction

[0058] For a certain gun, its barrel material is certain (material elastic strength limit σ p known), the inner radius r of each section (represented by discrete data points, see Table 1) 1 and outer radius r 2 It's all known. Each section also has a theoretical outer radius r 2l , r 1 with r 2l The wall thickness between them is just enough to withstand the modified maximum pressure p l (The section bears the maximum pressure p 1 multiplied by the safety factor n), r 1 with r 2 The wall thickness between bears p l There is a safety margin, and this safety margin corresponds to the allowable depth of the indentation h=r 2 -r 2l .

[0059] Discrete data points are connected to form a specific curve. like figure 1 As shown, taking the distance L from the position of each section to the bottom of the bore as the independent variable, each section r 2 form the actual shape, r 2l Form the theoretical shape, h form the allowable depth curve of the indentation; in addi...

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Abstract

The invention relates to an artillery tube indentation permissible depth curve refining method. The method comprises the following steps of: (1) determining a practical pressure bearing curve; and (2) calculating an indentation permissible depth curve. According to the method, indentation permissible depth curves under different shooting conditions can be refined, and a method for determining indentation permissible depth curves under different shooting conditions is given, so that basis is provided for accurate guarantee of artillery tubes, and the method can be used for artillery tube development of academies, scientific research institutes and weapon manufacturers and artillery tube guarantee of troops.

Description

technical field [0001] The invention belongs to the field of weapon development and support, and in particular relates to a refinement method for the allowable depth curve of a gun barrel pressure pit. Background technique [0002] The allowable depth curve of the gun barrel indentation is an important reference data for artillery support, especially battlefield support. When the depth of the crater or indentation on the gun body exceeds the allowable depth curve value of the indentation, it is considered that the artillery is not strong enough and the artillery cannot continue to shoot. [0003] The permissible depth curve of the barrel indentation is the depth curve between the actual shape and the theoretical shape of each section of the barrel. After the actual shape of the barrel is determined, the allowable depth curve of the indentation depends on the theoretical shape. The maximum pressure curve (pressure bearing curve) of the section is calculated, so the allowable ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/20
CPCG06F30/20
Inventor 杜中华马吉胜张玉荣杨玉良吴大林李鹏刘海平
Owner PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE