Tehnički vjesnik, Vol. 16 No. 1, 2009.
Pregledni rad
Numerical solving of ballistic flight equations for big bore air rifle
Josip Cumin
; Mechanical engineering faculty, University of Osijek, Trg I. Brlić-Mažuranić, 35000 Slavonski Brod, Croatia
Branko Grizelj
; Mechanical engineering faculty, University of Osijek, Trg I. Brlić-Mažuranić, 35000 Slavonski Brod, Croatia
Rudolf Scitovski
orcid.org/0000-0002-7386-5991
; Department of Mathematics, University of Osijek, Trg Lj. Gaja 6, HR-31000 Osijek, Croatia
Sažetak
This paper is about solving ballistic equations by means of numerical mathematics. Ballistic flight equations are applied for modern big bore air rifles, operated with high pressure carbon-dioxide (CO2) gas. Ballistic equations use air drag function for obtaining results. Today there are many complex commercial ballistic programs on market, based on modified mass point model – "MPMM" or "6DOF" model. Big bore air rifle commonly uses ball projectiles, and velocities of the projectiles are lower than the speed of sound. Therefore simplified models for quick calculations of ballistic trajectories and projectile velocities can be used.
Ključne riječi
ballistic equations; big bore air rifle; air drag
Hrčak ID:
34953
URI
Datum izdavanja:
31.3.2009.
Posjeta: 8.311 *