Dispersion sensitivity analysis&consistency im provement of APFSDS

The purpose of this study is to investigate and quantify some possible sources of dispersion of 120 mm APFSDS tank ammunition both experimentally and numerically. This paper aims to point out the most influential source during In-Bore Balloting Motion phase as well as in External Ballistics phase of...

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Bibliographic Details
Published inDefence Technology（防务技术） Vol. 13; no. 4; pp. 316 - 322
Main Author Sangeeta Sharma Panda;L.K. Gite;A. Anandaraj;R.S. Deodhar;D.K. Joshi;K.M. Rajan
Format Journal Article
LanguageChinese
Published 2017
Subjects
APFSDS;Dispersion;Consistency;Accuracy;Yaw
Carlo
dynamics;Monte
factor;In-bore
jump
rate;Spin;Muzzle
simulation
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Summary:The purpose of this study is to investigate and quantify some possible sources of dispersion of 120 mm APFSDS tank ammunition both experimentally and numerically. This paper aims to point out the most influential source during In-Bore Balloting Motion phase as well as in External Ballistics phase of the ammunition and quantifies its effect on dispersion. Data obtained from flight trials is critically analysed and parameters affecting dispersion such as initial yaw/pitch rates, yaw/pitch dampening, plane start angle, launch spin, clearance, centre of gravity shift, dynamic imbalance angle, cross wind, etc. are observed and, later on, studied in detail by extensive External Ballistics Monte Carlo (EBMC) simulation and Six Degree of Freedom (6-DOF) trajectory analysis. In Bore Balloting Motion simulation shows that reduction in residua! spin by about 5% results in drastic 56% reduction in first maximum yaw. A correlation between first maximum yaw and residual spin is observed. Results of data analysis are used i
Bibliography:10-1165/TJ
ISSN:2214-9147
2214-9147