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Axial enhanced Warhead damage control and optimize the performance of field research

Author: ZhangHui
Tutor: QianJianPing
School: Nanjing University of Technology and Engineering
Course: Artillery , automatic weapons and ammunition Engineering
Keywords: The Axial Forward Projection Fragment Artillery Shells Air Defense and Antimissile Pre-fragments Finite Element Method Damage Assessment
CLC: TJ410.33
Type: Master's thesis
Year: 2011
Downloads: 106
Quote: 0
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Abstract


The Axial Forward Projection Fragment Artillery Shells is an efficient multi-purpose warhead, which can form a relatively energy concentrated group of cluster fragment in the axial direction and uniform distributed natural fragments in the radial, Thus the comprehensive damage field can not only effectively compensate for the lack of precision, but also use the large fragment group to improve the quality of directional damage target.In this paper, the warheads of the different programs are analyzed in detail by theoretic model, numerical simulation, and establish the interchange process model between projectile and target and the damage model to air targets, then get the damage results of all the different programs to the target, finally gain the best solution by optimizing. The results show that the damage probability of the Axial Forward Projection Fragment Artillery Shells on the target is 100% when the encounter distance is 5m;and up to 48.57% when the encounter distance is 9.5m and intersection angle is 30°, meanwhile,the average damage probability is 85.32% between 2-9.5m.Including the following details:1) The paper uses the single-factor tests to get the different fragments distribution mode warheads, then theoretically analyzed the Fragments Field Distributed Features and Space Motion of Fragments, eventually established a comprehensive damage field on the target.2) The fragment velocity, scattering angle parameters and distribution field of different programs warheads are simulated by application of LS-DYNA software, therefore could find out the differences of each fragments field intuitively.3) According to damage effectiveness model and target damaged criteria, the paper calculates the limit penetration speed, the target breakdown probability, the penetration depth of fragmentation, the number of elements that damage target effectively and the damage probability to target.4) According to the intersection angle and distance between the projectile and the target, The paper get the damage probability of all the different programs to the target, and then determine the advantages and disadvantages of different options in order to find out the best warhead by the Damage stability criteria.

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CLC: > Industrial Technology > Arms industry > Ammunition, fuses, pyrotechnics > Ammunition > General issues > Structure > Projectiles, warheads, warhead
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