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http://dx.doi.org/10.9766/KIMST.2019.22.1.027

Gaussian Mixture based K2 Rifle Chamber Pressure Modeling of M193 and K100 Bullets  

Kim, Jong-Hwan (Department of Mechanical & Systems Engineering, Korea Military Academy)
Lee, Byounghwak (Department of Physics and Chemistry, Korea Military Academy)
Kim, Kyoungmin (Department of Computer Science, Korea Military Academy)
Shin, Kyuyong (Department of Computer Science, Korea Military Academy)
Lee, Wonwoo (Department of Electrical Engineering, Korea Military Academy)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.22, no.1, 2019 , pp. 27-34 More about this Journal
Abstract
This paper presents a chamber pressure model development of K2 rifle by applying Gaussian mixture model. In order to materialize a real recoil force of a virtual reality shooting rifle in military combat training, the chamber pressure which is one of major components of the recoil force needs to be investigated and modeled. Over 200,000 data of the chamber pressure were collected by implementing live fire experiments with both K100 and M193 of 5.56 mm bullets. Gaussian mixture method was also applied to create a mathematical model that satisfies nonlinear, asymmetry, and deviations of the chamber pressure which is caused by irregular characteristics of propellant combustion. In addition, Polynomial and Fourier Regression were used for comparison of results, and the sum of squared errors, the coefficient of determination and root-mean-square errors were analyzed for performance measurement.
Keywords
Interior Ballistics; Chamber Pressure Model; Gaussian Mixture Model; Virtual Reality;
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