• 한국군사과학기술학회지
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• 제12권5호
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• pp.601-608
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• 2009

Interoperability is the key issue in NCW. However, old-fashioned weapon systems have low level interoperability. The representative example is BTCS. Therefore, we apply KVMF R1 to BTCS in order to improve interoperability and testify the effectiveness of how to apply without any changes in existing software. In this paper, we have proposed a message and software architecture design method for applying KVMF to developed weapon system. Finally, it is confirmed that the proposed method is superior to apply KVMF to existing weapon system in a point of verifying how to highly efficiently apply KVMF on existing weapon system.

• 시스템엔지니어링학술지
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• 제17권1호
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• pp.35-42
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• 2021

Recent defense R&D projects have been required as weapons systems applied with advanced technology considering exports. As a result, the complexity of the applied technology increases, and the risk of system development increases. Under these circumstances, an effectives method of performing evolutionary development for economical and timely deployment is presented. To this end, we hope that this study, which proposed the maintenance of related laws and measures for realistic and active evolutionary development, will help the R&D of the weapons systems.

• 시스템엔지니어링학술지
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• 제16권1호
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• pp.36-42
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• 2020

Due to the population of the Republic of Korea is getting less, the shortage of available troops has become a big issue. In response to this, the need for Unmanned weapon systems is rising. To operate an Unmanned weapon system near borderlines or low altitude, it is necessary to protect not only the system itself but also operational information communicated between the Unmanned system and control station, so that they should be safe using Cybersecurity measures. Besides, it is critical to protect a few core technologies applied to Unmanned weapon systems throughout the Anti-Tamper measures. As the precedent studies only focus partially, Cybersecurity or Anti-Tamper, it is acknowledged that comprehensive studies are needed to be conducted. This study is to incorporate both concepts into Korea's defense acquisition process. Specifically, we will outline the concepts and needs of Cybersecurity and Anti-Tamper, and briefly present ways to apply them simultaneously.

• 한국군사과학기술학회지
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• 제13권5호
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• pp.808-817
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• 2010

This paper proposes a novel appoach which can assess the system technical maturity for use in Defense R&D Program reviews. As the weapon systems become more complicated, the success and effectiveness of R&D outcome heavily depend on the application and tailoring of systems engineering process and methods. It is a difficult task to assess the system readiness level(SRL) of the system being developed. A system-focused approach for managing weapon systems development and making effective and efficient decisions during the development lifecycle is critical to ensure the success of the program. The proposed weighted average SRL can facilitate the system technical maturity assessment without expending heavy work load.

• 한국산학기술학회논문지
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• 제19권8호
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• pp.64-70
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• 2018

무기 체계(or 구성품) 개발은 한정된 개발기간과 비용 등의 제한으로 시험 횟수가 많지 않아, 고장관련 축적된 데이터의 규모도 적다. 그러나 운용 중 발생한 고장 및 정비내역은 많은 부분 전산 데이터로 관리하고 있기 때문에 이를 활용한 무기 체계(or 구성품)의 고장원인 분석은 가능하다. 다만 다양한 무기체계의 고장 및 정비내역 작성 규격이 각 군 별, 업체별 상이하고, 고장 원인의 구체적 내역은 비정형 텍스트 데이터로 기술되어 있기 때문에 이를 분석하는데 어려움이 있었다. 그러나 오늘날 빅데이터 처리 기술과 기계학습(Machine Learning) 알고리즘의 발전, HW연산 능력의 개선과 맞물려, 상기와 같은 비정형 데이터를 처리 할 수 있는 여러 가지 방법들이 시도 되고 있으며, 주요한 연구 분야로 활발히 연구되고 있다. 본 논문에서는 국방 무기 체계(or 구성품)의 고장/정비 관련 비정형 데이터를 기계학습 기법 중 하나인 doc2vec을 적용하여 고장사례 분석 방안에 대하여 제시한다.

• 산업경영시스템학회지
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• 제44권4호
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• pp.106-112
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• 2021

In the early 1960s, US Air Force lost missile launch bases during ICBM development by a defect in the missile design and operation plan. U.S. DoD realized the limitation of the existing accident prevention method. Therefore, the weapon development required system safety activity, and procurement projects of U.S. DoD applied MIL-STD-882(System Safety). Development projects of U.S. DoD more emphasized the importance of system safety after the space shuttle Challenger exploded in 1986. Currently, Airworthiness certification for military aircraft uses system safety to minimize accidents. The domestic defense aviation R&D projects also use the system safety for the airworthiness certification. However, non-aviation weapon R&D projects rarely applied system safety. This paper presents a system safety application method for domestic weapon R&D projects by studying the U.S. military standards/organizations and domestic defense aviation projects.

• 산업경영시스템학회지
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• 제33권3호
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• pp.55-62
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• 2010

Currently, cost estimation is very important to the government acquisition programs to support decisions about funding and to evaluate resource requirement as key decision points. Parametric cost estimating models have been used extensively to obtain appropriate cost estimates in early acquisition phase. However, they have many restrictions to ensure the cost estimating result in Korean defense environment because they are developed in the U.S.A. environment. In order to obtain a good R&D cost estimate, developing our own CERs (Cost Estimation Relationships) using historical R&D data is essential. Nevertheless, there has been little research to develop our own CERs. In this research, we established a CER development process and found some cost drivers in the historical movement weapon system R&D data. The R&D CER is developed using the PCR(Principle Component Regression) method to remove multicollinearity among data and to overcome the restriction of the insufficient number of sample. At least, this research is meaningful as a first attempt in terms of defining the CER development process and obtaining our own R&D CER based on the historical data in Korean weapon system R&D environment.

• 시스템엔지니어링학술지
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• 제3권1호
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• pp.9-15
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• 2007

An EA(Evolutionary Acquisition) strategy is based on the systems engineering. It is a preferred approach to provide operationally useful capabilities to the warfighter much more quickly than single-step to full capability strategy. Recently, DoD is trying to apply the acquisition process based on the systems engineering. In spite of these trends, efforts of domestic defense acquisition society to this strategy are insufficient. Although an EA strategy has many benefits, there are many constraints to apply it. This study analyzes these constraints and presents applications of the EA strategy to defense R&D programs.

• 한국신뢰성학회지:신뢰성응용연구
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• 제14권1호
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• pp.29-35
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• 2014

To improve the reliability of a weapon system, we perform the activities: setting the target reliability, reliability allocation, and reliability management, etc. Before starting weapon system development, the target reliability of system is set through advanced research and is allocated to its subsystems at the beginning of development. Then we manage the reliability of system and subsystems to meet the target reliability until completion of system development. In this paper, we research representative reliability allocation methods and introduce the suitable reliability allocation method followed by its application to the underwater guided weapon system. The purpose of this research is to review the proposed reliability allocation techniques and find an appropriate method for underwater weapon systems followed by the validation of its application.

• 시스템엔지니어링학술지
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• 제18권1호
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• pp.46-57
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• 2022

In this paper, we proposed the DFMEA Implementation Method for safety design of Weapon System. First, we presented the process for DFMEA. And then, the case analysis of OOO missile was performed in accordance with the process presented. After defining the system requirements of OOO missile, failure definition scoring criteria was set. In order to clarify the definition of failure, the failure was classified into safety, reliability, maintainability and others. After performing the function analysis, the relationship matrix analysis was performed to identify the failure mode according to the function without omission. After clarifying the failure classification, mode of failure, cause of failure and effect were analyzed to calculate the severity, occurrence and detection values. After the action priority was judged, the recommended action according to the failure classification was identified for the determined action priority. The results of this study can be used as a relevant basis for the design reflection and resource re-allocation of stakeholders.