장약에 기반한 포병탄 EFD 산출 모형에 관한 연구

A Study on the Artillery shell's EFD based on Charge

Abstract

무기효과 산출을 위해 모델링 및 시뮬레이션 방법을 많이 사용하고 있다. 포병탄에 대한 무기효과 산출도 일부 진행되었으나, 장약의 선택에 따른 영향에 관한 연구는 부족하였다. 따라서 본 논문에서는 장약에 기반한 포병탄 EFD 산출모형을 제시하고, 장약의 선택에 따른 3차원 건물표적에 대한 무기효과의 차이를 확인하고자 한다. 우선 산출모형의 입력데이터를 수집하고, 제시한 모형을 이용하여 요망효과 달성을 위한 발사탄수를 산출하였다. 마지막으로 제시된 모형의 검증을 위해 대응표본 t-검정을 실시하였다.

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.

Fig. 1. Ballistic curve according to charges

Fig. 2. Calculation procedure of EFD based on charge

Fig. 3. Three-dimensional target with EMD(revised from Morris, 2012)

Fig. 4. Expansion of effective pattern(revised from Morris, 2012)

Fig. 5. The weapon area is next to the target area.(revised from Morris, 2012)

Fig. 6. The weapon area fully covered the target area.(revised from Morris, 2012)

Fig. 7. The Weapon area partially covered the target area.(revised from Morris, 2012)

Fig. 8. Fractional coverage function in the range direction(revised from Morris, 2012)

Fig. 9. Firing table

Table 1. Target-damage criteria about building targets

Table 2. MAEs for structural damage to buildings (notional data)

Table 3. Regression models of MAEs by cartridge's weights

Table 4. Weapons for verification

Table 5. Number of shoots calculation result (building size : 75m×80m×30m)

Table 6. Results of simulations

Table 7. Paired samples statistics

Table 8. Results of paired samples t-test

Table 9. Results of paired samples test according to range