• 한국군사과학기술학회지
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• 제6권4호
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• pp.22-28
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• 2003

In the conventional weapon system, such as gun and small arms, it Is a general trend that for maximization of its performance and enhancement of its effectiveness, the firing control system(FCS) is developed and applied with the guns and small arms in the world. The FCS of the small arms for infantry man is composed of a few of sensors for acquisition of input data of FCS, such as range measurement, position sensing of weapon, temperature, etc., computer, displayer and power pack, and also the air burst munition is developed in parallel for the maximization of FCS's effectiveness. Since the flight time setting fuze for the air burst munition is adapted for next me, the measuring device of the muzzle velocity is needed to overcome the variation of muzzle velocity due to producing procedures and the differences of the using temperatures and so maintain the burst position accuracy This paper contained the technical information on the development of the measuring device of muzzle velocity, which designed in compact & light weight configuration with reliability and accuracy.

• 한국신뢰성학회지:신뢰성응용연구
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• 제18권1호
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• pp.1-7
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• 2018

Purpose: Maintaining appropriate operational availability (Ao) is a key element of combat victory, but estimates vary according to estimation methods. The purpose of this study is to improve the accuracy of estimating operational availability by tracing the changes of the weapon system's failure rate, repair rate, and the level of logistic support. Methods: In order to track the change in the operating availability, the MDT (mean down time) is modeled by adding the repair time and the ALDT (administration and logistic delay time) to the service time. Results: Using the field data of the weapon system A operated by the ROKAF, the failure rate follows a non-homogeneous Poisson process that changes with time, and it is modeled considering the changing repair rate and the logistic support time. Conclusion: The accuracy of the analytical results was verified by comparing the actual operating data with the estimated availability. The results of this study can be used to track and evaluate the availability in a realistic situation where the failure rate and maintenance rate continuously change in operating environment.

• 한국국방경영분석학회지
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• 제36권1호
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• pp.29-38
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• 2010

In Korea weapon system acquisition processes, it's required a cost estimation report obtained from a commercial cost model. The PRICE model is generally used as a cost estimation model in Korea. However, the model uses American historical R&D data and it's output cost component is different from our cost component of defense accounting system. Also, we found that estimating results show about 10% of difference when we comparing with actual costs in 44 finished weapon acquisition projects. There are some limitations in calibration to increase an accuracy of the PRICE model because it's difficult obtain good real input data, detailed cost and technical data in low level WBS. So, only 8% of the defense R&D projects are calibrated and validation of calibration results is more difficult. Therefore, we studied the standard calibration process and performed the calibration about the MCPLXS/E parameters of the PRICE model based on actual cost data. In order to obtain a good calculation result, we collected the actual material costs from the defense industry companies. Our results can be used for an reference in similar weapon system R&D and production cost estimation cases.

• 한국경영과학회지
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• 제41권3호
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• pp.23-36
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• 2016

We consider a model that minimizes the total cost incurred by assigning available weapons to existing targets in order to reduce enemy threats, which is called the weapon target assignment problem (WTAP). This study addresses the stochastic versions of WTAP, in which data, such as the probability of destroying a target, are given randomly (i.e., data are identified with certain probability distributions). For each type of random data or parameter, we provide a stochastic optimization model on the basis of the expected value or scenario enumeration. In particular, when the probabilities of destroying targets depending on weapons are stochastic, we present a stochastic programming formulation with a simple recourse. We show that the stochastic model can be transformed into a deterministic equivalent mixed integer programming model under a certain discrete probability distribution of randomness. We solve the stochastic model to obtain an optimal solution via the mixed integer programming model and compare this solution with that of the deterministic model.

• 한국통신학회논문지
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• 제37권2C호
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• pp.173-180
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• 2012

무기체계간의 상호 운용성 증대를 위하여 한국형 가변 메시지 포맷 (Korean Variable Message Format; KVMF)을 적용 시 메시지 구조의 저장 위치와, 파서의 구조, 파서코드 생성기 설계 방법을 고려하여야 한다. 특히 기존 무기체계에 KVMF를 적용하는 경우를 위하여 성능 및 유지보수성 등을 분석하여 메시지 파서를 설계하는 것이 중요하다. 본 논문에서는 KVMF 통합 데이터베이스 (KVMF Integrated Database; KVID)를 기반으로 기존 도입된 장비와 차기 도입될 장비 모두에 적용할 수 있는 실시간 동적 KVMF메시지 파서 설계 방법을 제안하고 제안한 방법을 포병대대사격지휘체계에 적용하여 메시지 변환의 정확성을 확인하도록 한다.

• 한국국방경영분석학회지
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• 제28권2호
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• pp.70-84
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• 2002

This paper deals with the attrition rate of major facility such as a particular building that is one of the most important target in the war time. In order to estimate the attrition rate, we use JAWS, WinJMEM which are programed by JTCG/ME of AMSAA and spreadsheet package which is able to assist the limitation of those programs and calculate all the procedure of this computation. This method uses the effectiveness index(El) which indicates the numerical measure of the effectiveness of a given weapon of a given target. The range error probable(REP) and the deflection error probable(DEP) in the ground plane also should be used. Those mean the measure of delivery accuracy of the weapon system. In this paper, it is improved that the El can be obtained from the regression analysis using the weight of the warhead explosive as the independent variable. It implies that we are able to obtain the El and the conditional probability of damage of the enemy weapon. After that, the single-sortie probability of damage can be computed using WinJMEM or another assistant program such as the spreadsheet package which shows the result immediately.

• 한국산학기술학회논문지
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• 제19권1호
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• pp.566-576
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• 2018

우리 군의 무기체계는 강력한 화력과 다양한 기능을 보유하고 있으며, 이에 따라 무기체계 신뢰도 예측을 통한 품질 향상의 중요성 역시 점점 커지고 있다. 현재 우리 군의 무기체계 신뢰도 예측은 무기체계를 구성하는 부품들의 신뢰도들의 단순 합계를 통해 이루어지기 때문에 정확한 신뢰도 산출이 어렵다. 따라서 군은 신뢰도 향상을 위해 다양한 연구를 수행할 필요가 있다. 최근 다양한 산업에서 축적된 데이터를 활용한 많은 연구가 시도됨에 따라, 방위산업에서도 축적되고 있지만 활용되지 않은 다크(Dark) 데이터에 관한 분석을 시도하고 있다. 특히, 방위산업의 후속군수지원 단계는 무기체계의 신뢰도 향상을 위한 후속군수지원(PLS) 데이터를 활용할 필요가 있다. 본 연구는 부품단위의 기존 신뢰도 예측 방법에 대한 현황과 문제점을 검토하고, 후속군수지원의 결함 데이터의 적용방안을 제시한다. 이로 인해 무기체계 개발 시 신뢰도 예측의 정확성과 품질 향상에 도움이 될 것으로 기대한다.

• 문화기술의 융합
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• 제10권1호
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• pp.289-295
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• 2024

본 연구는 교전급 분석모델을 활용하여 현재 보유 중인 개인화기의 명중률이 교전결과에 어떤 영향을 미치는지 확인하고 이에 따른 개선비용을 추정하기 위해 연구되었다. 현재 운용 중인 국방M&S 분석용 모델은 약 30여 가지로 확인되며 이 중 개별 무기체계 효과분석에 활용되는 지상무기효과분석모델(AWAM : Army Weapon Effectiveness Analysis Model)을 활용하여 실험하였다. 우선 모델에 대한 VV&A(Verification, Validation and Accreditation) 과정을 통해 신뢰성을 확인 후에 본 실험에 임했다. 실험대상은 각개병사가 휴대하는 최소한의 전투력을 의미하는 개인화기로 실험하였다. 또한 교전결과에 가장 영향을 미치는 요소인 명중률을 집중적으로 연구하였고 이를 향상시킬수록 적에게 피해를 많이 주는 선형적인 결과가 나왔으나 지속적으로 피해율이 상승되지는 않았으며 명중률을 20% 향상시켰을 때 피해율이 가장 크다는 것을 알 수 있었다. 수치상 20%가 향상된 명중률의 교전결과가 기존보다 약 2배 이상의 피해를 준다는 것을 알 수 있었다. 또한 '명중률이 향상된 개인화기를 개발하기 위해 어느 정도의 비용을 감당해야 할 것인가?' 라는 의문을 갖고 비용추정론의 방법 중 하나인 단순회귀분석으로 그 비용을 추정해 보았다. 본 연구를 통해 국방M&S를 활용하여 개인화기의 명중률이 교전결과에 상당한 영향이 있다는 것을 확인하였고, 명중률이 개선된 개인화기가 필요하다면 이를 위한 개선비용도 추정해보는데 의의가 있었다.

• 한국군사과학기술학회지
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• 제11권6호
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• pp.102-116
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• 2008

In the development stage of weapon system, it is important to analyze RAM(Reliability, Availability and Maintainability) characteristics. RAM simulation is one of the advanced techniques for analyzing RAM to overpass the limit of mathematical techniques. However, it is necessary to obtain correct input data for reliability and maintainability about target and support system to get highly accurate results through RAM simulation. In this study, we propose the technical method to improve the results by defining input data of simulation more correctly based on analyzing effects of RAM characteristics by major factors.

• 항공우주시스템공학회지
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• 제4권1호
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• pp.32-37
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• 2010

Guided weapon is very excellent strategy system than conventional weapons. Recently, several devices and a technology developed much developing more, inertia measuring device is one example. Inertia measuring device is device that is used to improe more accuracy of guided weapon, this device is operated by sensors of inside. Sensors of inside are parts that is very sensitive about impact or shock, heat that interact when shoot, it is main purpose that verify durability of sensor by heat delivered from outside in this study.