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Air target missile fragment emission maximum damage algorithm

A technology for air targets and missiles, which is applied in computing, instrumentation, electrical and digital data processing, etc., can solve the problems of inaccurate analysis results, and do not consider the impact of fragmentation by gravity and air resistance, and achieve the effect of accurate analysis results.

Active Publication Date: 2018-03-13
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the above method does not consider the impact of fragments by gravity and air resistance, and most of the analysis is the case where the aircraft and the missile are on the same plane, resulting in inaccurate analysis results

Method used

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  • Air target missile fragment emission maximum damage algorithm
  • Air target missile fragment emission maximum damage algorithm
  • Air target missile fragment emission maximum damage algorithm

Examples

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Effect test

Embodiment

[0087] In the initial situation, the distance between the aircraft and the missile is 20m, the flight speed of the missile is 700m / s, the pitch angle of the missile’s flight direction θ=20°, and the yaw angle The flight speed of the aircraft is 300m / s, the static initial velocity of the fragment is 1200m / s, the static direction angle is 89° to 91°, the azimuth angle is 0 to 360°, the mass of the fragment is 5g, and the length of the aircraft is 20m.

[0088] get as Figure 6 Effective number of fragmentation hitting aircraft shown. The abscissa in the figure is the x-circle coordinate in the body coordinate system, and the ordinate is the effective number of fragments hitting the aircraft. It can be seen that when the distance between the missile and the center point of the aircraft on the x-axis projection is 6m, that is, when the distance R=6.66m, the effective number of fragments hitting the aircraft is the largest, with 189 pieces. That is to say, it can be concluded th...

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Abstract

The invention discloses an air target missile fragment emission maximum damage algorithm. The method includes the steps of setting parameters of the intersection between a missile and an aircraft, determining the range of a point of burst, and dividing the range of the point of blast into a plurality of points of burst; conducting a force analysis on detonated fragments of the missile at the points of blast to obtain flight trajectories during the fragment emission; determining a critical part of the aircraft as a critical area, and when the flight trajectories during the fragment emission pass through the critical area and the emission speed is greater than or equal to a set speed threshold, determining the fragments as effective hit fragments; and obtaining the corresponding location ofthe point of blast where the number of effective fragments is the greatest, that is, the maximum damage location. The algorithm in the invention takes into account the influence of the air resistanceand gravity of the fragment during the flight when the force analysis is performed on the single piece of fragment, and the analysis result is more accurate.

Description

technical field [0001] The invention relates to a method for determining the optimal detonation distance of a fuze, in particular to an algorithm for the maximum damage caused by fragmentation of an air-to-air target missile. Background technique [0002] The task of the anti-aircraft missile is to destroy the incoming air target, and this task is finally completed by the warhead of the missile. The warhead detonates at the appropriate moment when the missile meets the target, releases the energy stored in it very quickly, produces a strong explosion effect, and forms many high-speed killing elements, such as metal fragments, etc., and their killing distance far exceeds that of the missile radius, as long as the target is within the dynamic kill zone of warhead fragments, it will be damaged. [0003] The types of warheads of anti-aircraft missiles mainly include fragment warheads, continuous rod warheads, focused warheads, and mother-child warheads. The most widely used is...

Claims

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 赵惠昌黄烨
Owner NANJING UNIV OF SCI & TECH
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