Open AccessDevelopment of the analytic relations for the propellant grain geometrical characteristics required for a maximum pressure plateau feature
Author(s) -
Adrian Rotariu,
Florina Bucur,
Marius-Valeriu Cîrmaci-Matei,
Liviu-Cristian Matache,
Eugen Trană
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1507/2/022025
Subject(s) - propellant , internal ballistics , projectile , ballistics , plateau (mathematics) , mechanics , constant (computer programming) , feature (linguistics) , mathematics , aerospace engineering , mathematical analysis , materials science , computer science , physics , engineering , linguistics , philosophy , metallurgy , programming language
By using the fundamental interior ballistics relations, developed based on some simplification hypothesis, there was deduced a formula for the geometrical characteristics that allow the occurrence of a constant pressure plateau in a gun when a charge composed by a single type of undeterred propellant grain is used. The equation incorporates various factors as propellant ballistics properties, the gun/projectile/propellant gabaritical data and the targeted maximum pressure value. Nevertheless, the calculus done on a realistic set of data indicates the impossibility to reach a constant pressure plateau when a propellant characterised by a single set of geometrical characteristics over the entire web thickness is use.