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J. KIMS Technol > Volume 17(2); 2014 > Article
Journal of the Korea Institute of Military Science and Technology 2014;17(2):204-212.
DOI: https://doi.org/10.9766/KIMST.2014.17.2.204   
Effects of Calibration Rounds on the Statistical Distribution of Muzzle Velocity in Acceptance Test of Propelling Charge
Sung-Ho Park, Jae-Hoon Kim
1Agency for Defense Development
2Chungnam University
추진장약 수락시험시 포구속도 확률분포에 기준탄이 미치는 영향
박성호, 김재훈
1국방과학연구소 종합시험본부
2충남대학교 기계설계공학과
Abstract
The purpose of this paper is to investigate the effects of calibration rounds on the statistical distribution of the muzzle velocity in acceptance test of propelling charge. It is shown that the normal distribution fits best among statistical distributions from goodness-of fit test. The 3p-Weibull distribution is also acceptable because the shape of the probability density function curve is similar to that of normal distribution and it also has near zero skewness value. Muzzle velocities of test rounds uncompensated by calibration rounds showed high variation and had comparatively higher skewness. Because the skewness of normal distribution is defined to be zero, calibration rounds make the normality of data higher.
Key Words: Acceptance Test, Calibration Rounds, Normal Distribution, Goodness-of-fitness, Skewness, Normality


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