Investigation of influence of propellant charge temperature on gun firing phenomenon

• Autorzy: Leciejewski Z. K. , Surma Z.
• Języki publikacji: EN

Abstrakty

EN

The temperature of propellant charge, like the level of operating wear of barrel inner surface, influences on pressure impulse of propellant gases inside the barrel during firing process. Value of pressure impulse decides on muzzle velocity of projectile and creates input data to determine projectile trajectory and its terminal ballistics parameters. Existing shooting tables of different weapon systems, enabling precise firing, are based on experimental (very expensive and time-consuming) investigations leading in different ambient temperatures (conditions of operating). Contemporary computer technology makes possible automatic fire control system creation based on solution of closed equation system describing the motion of projectile inside and out of the barrel, taking into consideration influence of different disturbances (including propellant charge temperature deviation). The results of a single-base propellant research with different initial temperature of charges are presented in this paper. Basic ballistic properties, such as the force, covolume and burning rate factor were calculated on the basis of measurements of pressure of propellant gases versus time in the closed vessel. Results of experimental investigations and calculations show influence of initial temperature of charges especially on burning rate.

Słowa kluczowe

EN

experimental pirostatic investigations; propellant composition; experimental investigations

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Materiały Wysokoenergetyczne
• Rocznik: 2009
• Tom: T. 1
• Strony: 42--47
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Leciejewski Z. K.

• Institute of Armament Technology, Faculty of Mechatronics, Military University of Technology, 2 S. Kaliskiego str., 00-908 Warsaw, PL

autor

Surma Z.

• Institute of Armament Technology, Faculty of Mechatronics, Military University of Technology, 2 S. Kaliskiego str., 00-908 Warsaw, PL

Bibliografia

• [1] Corner J., Theory of the interior ballistics of guns, New York-London, 1950.
• [2] Langlotz W., Mueller D., Wagner Ch., LTC Gun Propellants for Use in Machine Gun Ammunition, 21st Int. Symp. on Ballistics, pp.682-687,Adelaide, South Australia, 19-23 April 2004.
• [3] Leciejewski Z., Surma Z., Analysis of Influence of Propellant Charge Initial Temperature on Ballistic Parameters of Firing, 7th Int. Symp. on Weapon Systems, pp. 27-34, Brno, Czech Republic, 04-06 May 2005.
• [4] Research work No 0T00A00811 for Polish Science Committee, Theoretical and experimental investigations of thermodynamic properties of powder gases and real rate of powder burning, and verification of the mathematical model of shooting. Edited by Military University of Technology, Warsaw 1999.
• [5] Torecki S., Internal ballistics. Edited by Military University of Technology, Warsaw 1980. (in Polish)
• [6] STANAG 4115 LAND (Edition 2) – Definition and determination of ballistic properties of gun propellants.