Role of wave reverberations in exit vibrations of projectiles and shells

• Autorzy: Trębiński R.

Identyfikatory

DOI

10.15632/jtam-pl.55.2.667

• Języki publikacji: EN

Abstrakty

EN

Carlucci et al. (2013) proposed a theoretical model describing exit vibrations of a shell launched by a gun. The model treats the shell as a system of a spring, damper and a rigid mass. In this paper, similar models describing vibrations of shells and monolithic projectiles are compared with some 1D models taking into account wave reverberations. The comparison proves that the models taking into account the wave motion, forecast similar amplitudes and frequencies of vibrations as discrete models. However, details of acceleration time courses differ considerably. The problem of the influence of the friction force between the shell wall and the filling is also discussed. The results of modelling serve as well for assessing if some projectile velocity oscillations detected by making use of the Doppler radar can be solely attributed to the exit vibrations.

Słowa kluczowe

EN

intermediate ballistics; projectile vibrations; wave reverberation

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 2
• Strony: 667--677
• Opis fizyczny: Biobliogr. 6 poz., rys.

Twórcy

autor

Trębiński R.

• Military University of Technology, Faculty of Mechatronics and Aerospace, Warszawa, Poland

Bibliografia

• 1. Carlucci D., Vega J., 2007, Empirical relationship for muzzle exit pressure in a 155 mm gun tube, [In:] Computational Ballistics III, C. A. Brebbia, edit., WIT Press, Ashurst, UK
• 2. Carlucci D.E., Frydman A.M, Cordes J.A., 2013, Mathematical description of projectile exit dynamics (set-forward), ASME Journal of Applied Mechanics, 80, 031501-1
• 3. Klingenberg G., Heimerl J.M., 1988, Gun Muzzle Blast and Flash, 139, AIAA Progress in Astronautics and Aeronautics edition
• 4. Leciejewski Z., Surma Z., Torecki S., Trębiński R., Czyżewska M., 2013, Theoretical and experimental investigations of projectile motion specifity in the intermediate period, Proceedings of the 27th International Symposium on Ballistics, Freiburg, Germany, 333-343
• 5. Trębinski R., Czyżewska M., 2015a, Approximate model of the intermediate ballistics, Central European Journal of Energetic Materials, 12, 1, 77-88
• 6. Trębiński R., Czyżewska M., 2015b, Estimation of projectile velocity increase in the intermediate ballistics period, Central European Journal of Energetic Materials, 12, 1, 63-76

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)