An effectiveness evaluation method for airburst projectiles

Saygın, Oktay
Airburst projectiles increase the effectiveness of air defense, by forming clouds of small pellets. In this work, in order to evaluate the effectiveness of airburst projectiles, Single Shot Kill Probability (SSKP) is computed at different burst distances by using three lethality functions defined from different measures of effectiveness. These different measures are target coverage, number of sub-projectile hits on the target and kinetic energy of sub-projectiles after burst. Computations are carried out for two different sub-projectile distribution patterns, namely circular and ring patterns. In this work, for the determination of miss distance, a Monte Carlo simulation is implemented, which uses Modified Point Mass Model (MPMM) trajectory equations. According to the results obtained two different distribution patterns are compared in terms of effectiveness and optimum burst distance of each distribution pattern is determined at different ranges.


An adaptive guidance approach for spinning projectiles
Calise, Anthony J.; El-Shirbiny, Hesham A.; Kim, Nakwan; Kutay, Ali Türker (2004-01-01)
Previous work1 has shown a significant potential for improving the accuracy of direct fire spinning projectiles through the implementation of aerodynamic control. A guidance law optimized for this application was developed. Further research has shown that the guidance law cannot adjust quickly enough to accommodate actuator nonlinearities and uncertainties. Of particular interest is the use of miniature synthetic jets, which achieve a control force by interacting with the flow. The full model of such actuat...
A numerical study on the thermal initiation of a confined explosive in 2-D geometry
Aydemir, Erdogan; Ulaş, Abdullah (Elsevier BV, 2011-02-15)
Insensitive munitions design against thermal stimuli like slow or fast cook-off has become a significant requirement for today's munitions. In order to achieve insensitive munitions characteristics, the response of the energetic material needs to be predicted against heating stimuli. In this study, a 2D numerical code was developed to simulate the slow and fast cook-off heating conditions of confined munitions and to obtain the response of the energetic materials. Computations were performed in order to pre...
Controller design and implementation for a guidance kit used at spinning rockets and projectiles
Günay, Görkem; Balkan, Raif Tuna; Çalışkan, Hakan; Department of Mechanical Engineering (2022-4-28)
Traditional spin-stabilized projectiles have disadvantages due to low accuracy and precision with respect to guided munitions. There are two main solutions to eliminate these disadvantages. The first one uses a drag brake mechanism to make 1-D guidance by making range correction. The second solution makes 2-D guidance. Since rotation dynamics of a spin-stabilized projectile is faster than existing servo actuators this solution requires isolation of the guidance kit from the rotation of the projectile body. ...
Short range thrusting projectile tracking
Bilgin, Ozan Özgün; Demirekler, Mübeccel; Department of Electrical and Electronics Engineering (2012)
Short range thrusting projectiles are one of the various threats against armored vehicles and helicopters on the battlefield. Developing a countermeasure for this kind of projectiles is very crucial since they are vast in number and easy to operate on the battlefield. A countermeasure may consist of fire point prediction of the projectile and attack the launcher of it, or it may be the impact point prediction of the projectile and apply a hard-kill counter measure on its way to the ally target. For both of ...
An experimental study on the effects of blockage ratio and ventilation velocity on the heat release rate of tunnel fires
Kayili, Serkan; Yozgatlıgil, Ahmet; Cahit Eralp, O. (SAGE Publications, 2011-8-26)
It is very important to accurately predict the fire-induced air velocity, temperature, and smoke concentrations in tunnel fires to design efficient fire protection systems. In this study a scaled model of a tunnel was constructed based on Froude number scaling and wood sticks with different configurations which were burned in a controlled environment. Model vehicles having a square base were built according to the wood crib theory. The impact of varying longitudinal ventilation velocity and the cross-sectio...
Citation Formats
O. Saygın, “An effectiveness evaluation method for airburst projectiles,” M.S. - Master of Science, Middle East Technical University, 2011.