Estimation of the accuracy of laser guided bomb

• Autorzy: Kowaleczko G. , Pietraszek M.

Identyfikatory

DOI

10.5604/12314005.1216495

• Języki publikacji: EN

Abstrakty

EN

The main goal of the bomb release is to hit the target with a maximum accuracy. Therefore, special active control systems are utilized to improve this accuracy. Some of the most popular are semi-active laser systems of guidance. Selected target is pointed with high-intensity laser by an airborne or ground laser designator. The laser-guided bomb (LGB) tracks this target using on-board laser seeker and adjusts its trajectory. The main task of the control system is to steer the bomb in the way allowing fixing the reflected laser beam in the centre of photo sensor array. This keeps the bomb axis straight toward the target. The aim of this study is to identify factors influencing on the accuracy of the LGB. It was performed for the prototype of LGB, which was designed in the Air Force Institute of Technology. This is the modernized version of the classical LB-10M bomb. Originally, this bomb has only four rear stabilizers and it has been equipped with four additional fins (Fig. 1). These fins allow controlling the bomb's path in active way. Earlier studies have shown that this is the useful method of bomb control both in longitudinal and lateral motions. Analysis proved that range of the bomb can be effectively changed. This paper presents method of flight simulations for released LGB. Calculations were performed using sixdegrees- of-freedom mathematical model of the LB-10M bomb motion. Aerodynamics was calculated using commercial software. Control laws were determined based on signals detected by two pairs of laser sensors. Exemplary results of simulations are submitted and conclusions focused on the main factors influencing on bombing accuracy are shown.

Słowa kluczowe

EN

exterior ballistics; guided munitions; flight control

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 3
• Strony: 271--279
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Kowaleczko G.

• Air Force Institute of Technology Ksiecia Boleslawa 6, 01-494 Warsaw, Poland tel.: [phone]

autor

Pietraszek M.

• Air Force Institute of Technology Ksiecia Boleslawa 6, 01-494 Warsaw, Poland tel.: [phone]

Bibliografia

• [1] Carlucci, D. E., Jacobson, S. S., Ballistics − Theory and Design of Guns and Ammunitions, CRC Press, 2007.
• [2] Dimitriewskij, A. A., External Ballistics, Mashinostrojenie, Moscow 1972 (in Russian).
• [3] Engineering Design Handbook – Design for Control of Projectile Flight Characteristics, Headquaters U.S. Army Materiel Command, September 1996.
• [4] Gacek, J., External Ballistics, MUT, Warsaw 1999.
• [5] Kowaleczko, G., Żyluk, A., Influence of atmospheric turbulence on bomb release, Journal of Theoretical and Applied Mechanics, No. 1, Vol. 47, 2009.
• [6] Kowaleczko, G., Olejniczak, E., Pietraszek, M., Żyluk, A., Evaluation of the Possibility of Bomb Flight Control, Journal of KONES, 2015.
• [7] McCoy, R. L., Modern Exterior Ballistics, Schiffer Publishing Ltd., 2012.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.