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Study on modeling and production inaccuracies for artillery firing

Khalil Mostafa

Archive of Mechanical Engineering

2022

LXIX, nr 1

165--183

Production and assessment of artillery firing tables (FT) are the key tasks in solving ballistic problems through both standard and non-standard firing conditions. According to the literature, two different standard firing table formats were developed by the former-Soviet and the United States armies. This study proposes the main difference between these FT formats, as the standard meteorological conditions. An accuracy assessment has been proposed to justify different sources of errors through modeling and production of such tables, including applied meteorological message, aiming angles round-off, linear superposition principle, and Earth approximation. A~case study has been proposed for the 155M107 projectile to demonstrate the impact of the Coriolis effect as well as other ballistic and atmospheric non-standard conditions. As a part of the construction of artillery FT, a fitting process has to be made between available firing data and simulations. Therefore, a parametric study is implemented to study the number of test elevations per charge needed through the fitting process and its corresponding production error. Hence, based on the number of test elevations available, the genetic algorithm (GA) has been utilized to obtain the test elevations order needed with minimum FT production error. The results show a good agreement with the data stated in the literature.

Dekodowanie danych meteorologicznych dla okrętowych systemów artyleryjskich

Szumielewicz K., Rodwald P., Milewski S.

Zeszyty Naukowe Akademii Marynarki Wojennej

2014

R. 55 nr 3 (198)

87--98

Artykuł poświęcony jest procedurom wykorzystania meteorologicznych komunikatów artyleryjskich w NATO. Przedstawiono w nim sposoby pozyskiwania danych meteo, metody kodowania takich danych oraz budowę meteorologicznego komunikatu artyleryjskiego. Dodatkowo zaprezentowano draft oprogramowania dekodującego komunikat meteorologiczny w postaci cyfrowej do ustandaryzowanej postaci tabelarycznej.

This article deals with procedures for using artillery meteorological messages in NATO. It presents the ways of acquiring meteorological data, methods for coding such data, and the structure of an artillery meteorological message. Additionally, it includes a draft of software for decoding an artillery meteorological message in digital form into the standardized tabular form.