• Journal of the Korea Society for Simulation
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• v.28 no.1
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• pp.11-21
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• 2019

Modeling and simulation(M&S) method are used to quantify the weapon effectiveness. The weapon effectiveness of artillery shells was also partially studied, but there was a lack of research on the effects of the choice of charge. Therefore, this paper presents an artillery shell's EFD(Expected Fractional Damage) calculation model based on the charge and identifies differences in the weapon effectiveness of 3D building targets according to the selection of the charge. First, the input data of the calculation model was collected and a required number of shoots was calculated to achieve the desired effects using the proposed model. Finally, a paired sample t-test was conducted to verify the proposed model.

• Defense and Technology
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• no.5 s.41
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• pp.61-65
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• 1982

공경중 적기갑부대 및 포병부대를 격파하는 야전포병에 대한 요구는, 현재로서는 현존의 탄종 사용으로 또는 불이한 힘으로서는 한정적으로 만족하는데 지나지 않다. 장갑목표, 즉 전차를 야포로서 물리치기 위하여는 게올그.돈하스중령이 기고한 내용과 같이 될수 있으면 신속히 부대에서 종말유도탄을 사용해야만 된다. 현존 전장에서 사용하는 유일한 포탄은 cOPPERHEAD 종말유도 155MM탄이다. 이제까지 이 탄은 14,400만불의 비용으로 개발해서 현재는 10억불에 조달되고 있다는 것이다. 그러나 90년대에는 지역사격에 투입되는 원자포탄의 집중공격으로 기갑부대의 격파가 처음으로 가능할 것으로 본다.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2004.10a
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• pp.146-154
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• 2004

In this study, numerical analysis has been performed to investigate the flow characteristics of a drag improvement device which is designed to achieve accurate impact point. The drag increase due to drag improvement device has been analyzed. And the effect of spread angle and location of drag improvement device has also been investigated. The drag improvement device with 20 degree spread angle increased the drag 3.5 times. The corresponding weight of the device is found out to be 26g.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.9
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• pp.62-68
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• 2018

This study was conducted to improve the shooting stability of self propelled artillery by improving the flick rammer system. The flick rammer system is designed to reduce crew fatigue and shorten the movement and loading time of the shell compared with the conventional manual loading system. Basically, in the flick rammer system of the shooting type, fall-back occurs intermittently, which causes problems in the rapid loading. To solve this problem, a detailed C.A.E. (Computer Aided Engineering) analysis of the internal structure of the existing rapid loading field was conducted. Through this, we sought a solution that can prevent fall-back by reducing the flying distance. We then optimized the loading station to reduce the flying distance and confirmed the possibility of suppressing the fall-back compared to the existing product through actual tests in the field.