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Method for calculating pneumatic parameters of two-dimension trajectory correction projectile with fixed rudder

A calculation method and technology of aerodynamic parameters, applied in the direction of calculation, electrical digital data processing, design optimization/simulation, etc., can solve problems such as the inability to accurately describe and correct the aerodynamic characteristics, save time and project funds, and ensure the effect of accuracy

Active Publication Date: 2017-03-08
PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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Problems solved by technology

However, due to the change of the shape of the corrected projectile, the previous aerodynamic calculation method for ordinary projectiles cannot accurately describe the aerodynamic characteristics of the corrected projectile.

Method used

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  • Method for calculating pneumatic parameters of two-dimension trajectory correction projectile with fixed rudder
  • Method for calculating pneumatic parameters of two-dimension trajectory correction projectile with fixed rudder
  • Method for calculating pneumatic parameters of two-dimension trajectory correction projectile with fixed rudder

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Embodiment Construction

[0057] The present invention takes a standard bullet as a prototype, only replaces the original fuze of the prototype standard bullet with a two-dimensional ballistic correction component, and replaces the fuze of the original standard bullet with a two-dimensional ballistic correction component 1, so that the basic shape of the exposed part of the two-dimensional ballistic correction component is the largest The limit is kept consistent with the shape of the original fuze to obtain a two-dimensional ballistic correction projectile; the two-dimensional ballistic correction projectile includes a two-dimensional ballistic correction component 1 arranged at the front end of the two-dimensional ballistic correction projectile and a projectile body arranged at the rear end of the two-dimensional ballistic correction projectile 2. The two-dimensional ballistic correction component 1 is threadedly connected to the projectile body 2 and fixed by pins; the projectile body 2 is provided w...

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Abstract

The invention discloses a method for calculating pneumatic parameters of a two-dimension trajectory correction projectile with a fixed rudder. The method comprises the steps of constructing the two-dimension trajectory correction projectile; building an entity model of the two-dimension trajectory correction projectile; building a mesh model of the two-dimension trajectory correction projectile; importing the mesh model of the two-dimension trajectory correction projectile into Fluent software; and performing Fluent software setting and numerical calculation. By utilizing the method for calculating the pneumatic parameters, the relatively accurate pneumatic parameters of the correction projectile can be quickly obtained, and a wind tunnel test does not need to be carried out for verifying the accuracy of pneumatic calculation data, so that a large amount of time and project funds can be saved; and it is verified that the accuracy of a calculation result can be ensured through wind tunnel test data.

Description

technical field [0001] The invention belongs to the technical field of projectile simulation calculation, and relates to a method for calculating aerodynamic parameters of a fixed-rudder two-dimensional ballistic correction projectile. Background technique [0002] In modern warfare, precision strike has become the primary goal of combat, and the development of new artillery guided munitions has attracted the attention of all countries in the world. In the past, precision strikes were achieved by relying on missiles, but missiles are expensive and poor in maintainability, and ordinary artillery shells cannot meet the purpose of precision strikes. The generation of two-dimensional ballistic correction missiles has made low-cost precision strikes possible. In order to balance the dual requirements of precision strike and high cost, various countries have conducted a series of researches on two-dimensional ballistic correction missiles and made some progress. Compared with ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 朱少雄施冬梅高欣宝高敏宋卫东方丹王毅
Owner PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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