• 제목/요약/키워드: defense R&D

검색결과 863건 처리시간 0.021초

Study for Analyzing Defense Industry Technology using Datamining technique: Patent Analysis Approach (데이터마이닝을 통한 방위산업기술 분석 연구: 특허분석을 중심으로)

  • Son, Changho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제19권10호
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    • pp.101-107
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    • 2018
  • Recently, Korea's defense industry has advanced highly, and defense R&D budget is gradually increasing in defense budget. However, without objective analysis of defense industry technology, effective defense R&D activities are limited and defense budgets can be used inefficiently. Therefore, in addition to analyzing the defense industry technology quantitatively reflecting the opinions of the experts, this paper aims to analyze the defense industry technology objectively by quantitative methods, and to make efficient use of the defense budget. In addition, we propose a patent analysis method to grasp the characteristics of the defense industry technology and the vacant technology objectively and systematically by applying the big data analysis method, which is one of the keywords of the 4th industrial revolution, to the defense industry technology. The proposed method is applied to the technology of the firepower industry among several defense industrial technologies and the case analysis is conducted. In the process, the patents of 10 domestic companies related to firepower were collected through the Kipris in the defense industry companies' classification of the Korea Defense Industry Association(KDIA), and the data matrix was preprocessed to utilize IPC codes among them. And then, we Implemented association rule mining which can grasp the relation between each item in data mining technique using R program. The results of this study are suggested through interpretation of support, confidence lift index which were resulted from suggested approach. Therefore, this paper suggests that it can help the efficient use of massive national defense budget and enhance the competitiveness of defense industry technology.

Analyzing the Efficiency of Defense Basic Research Projects using DEA (자료포락분석(DEA)을 활용한 국방 기초연구개발 사업의 효율성 분석)

  • Lim, Yong-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제21권7호
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    • pp.517-524
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    • 2020
  • In line with the recent wave of the 4th Industrial Revolution, the environment for defense R&D is transforming into a center of high-tech military technology. In particular, developed countries are strengthening control of technology exports and technology transfer to protect advanced defense science and technology. For this reason, the budget demand for securing the ability to develop independently high-tech weapons and core technologies suitable for the future battlefield environment is increasing, and increasing efficiency in R&D investment has been highlighted for efficient distribution of limited budgets. This study examined the efficiency of the defense basic R&D project using the non-parametric approach, DEA. The R&D budget, R&D researcher, and R&D period were selected as the input variables, and the number of papers and patents were used as output variables. The efficiency of basic R&D projects was analyzed through CCR, BCC models, and SE. Lastly, based on the efficiency measurements, the cause of the inefficiency of R&D projects was suggested, and ways to improve efficiency were suggested. This study is expected to be used as useful information that can be applied to project performance management through efficiency analysis of basic defense R&D projects and be reflected in the project planning stage through feedback.

Research on R&D requirement planning support strategies to foster arms exports: focused on researching the evaluation model of marketability of weapon systems (방산수출을 고려한 R&D 소요기획 지원전략 연구: 무기체계 시장성 평가모델 연구를 중심으로)

  • Han, Bong-Yoon;Won, Jun-Ho
    • Journal of Technology Innovation
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    • 제20권3호
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    • pp.93-128
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    • 2012
  • Defense technology planning identifies medium-and long-term core technologies to accomplish future defense goals and suggests strategies for future R&D. In order to promote the export-oriented defense industry, planning paradigms should be shifted from technology-oriented planning that focuses on weapon systems to market- oriented R&D planning. This study aims to strategically support 'preliminary technology planning' the Defense Agency for Technology and Quality is pushing ahead with. Through market-orientation analysis models of weapon systems based on defense R&D planning, data research on previous market-oriented research, and the analyses and examples of global defence markets, it evaluates market attractiveness to UAVs and drew methods for exploring markets and enhancing competitiveness of military equipment. The market-oriented analysis model of weapon systems is considered to be a helpful reference as a relevant factor for decision making on establishing and verifying requirement planning. In particular, if a market-oriented defense R&D planning process is established institutionally, it will enable us to make export strategies tailored to different equipment from the planning phase and to support marketing strategically.

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The Process of R&B Project-Priority Ordering in Defense Technology (국방과학기술 연구개발 우선순위설정에 관한 연구)

  • Lee Jeong-Dong;Lee Choon-Joo;Jang Won-Joon;Park Hong-Suk
    • Journal of the military operations research society of Korea
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    • 제30권2호
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    • pp.122-132
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    • 2004
  • The aim of this paper is to show the process of R&D Project-Priority Ordering in the Defense Technology field. We propose specific methods (Delphi, Analytic Hierarchy Process (AHP), Scoring) to order the R&D Project-Priority. In general, to decide the priority of R&D projects most of researches depend on questionnaires which are surveyed by experts. However, it is criticized that this process cannot reflect the limitation of experience and knowledge of experts. In this process, we separate evaluators in two parts: the first is strategic experts, the second is technical experts. Evaluators can choose and evaluate the alternatives which they are familiar with, so we can obtain reliable results. Finally, based on our process of the R&D Project-Priority Ordering we formulate policy implications for managing the defense technology.

Linearly Polarized 1-kW 20/400-㎛ Yb-doped Fiber Laser with 10-GHz Linewidth (선편광된 10 GHz 선폭의 1 kW급 20/400-㎛ 이터븀 첨가 광섬유 레이저)

  • Jung, Yeji;Jung, Minwan;Lee, Kangin;Kim, Taewoo;Kim, Jae-Ihn;Lee, Yongsoo;Cho, Joonyong
    • Korean Journal of Optics and Photonics
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    • 제32권3호
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    • pp.120-125
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    • 2021
  • We have developed a linearly polarized high-power Yb-doped fiber laser in the master oscillator power amplifier (MOPA) scheme for efficient spectral beam combining. We modulated the phase of the seed laser by pseudo-random binary sequence (PRBS), with the bit length optimized to suppress stimulated Brillouin scattering (SBS), and subsequently amplified seed power in a 3-stage amplifier system. We have constructed by coiling the polarization-maintaining (PM) Yb-doped fiber, with core and cladding diameters of 20 ㎛ and 400 ㎛ respectively, to a diameter of 9-12 cm for suppression of the mode instability (MI). Finally, we obtained an output power of 1.004 kW with a slope efficiency of 83.7% in the main amplification stage. The beam quality factor M2 and the polarization extinction ratio (PER) were measured to be 1.12 and 21.5 dB respectively. Furthermore, the peak-intensity difference between the Rayleigh signal and SBS signal was observed to be 2.36 dB in the backward spectra, indicating that SBS is successfully suppressed. In addition, it can be expected that the MI does not occur because not only there is no decrease in slope efficiency, but also the beam quality for each amplified output is maintained.

Design Study of a Simulation Duct for Gas Turbine Engine Operations (가스터빈엔진을 모의하기 위한 시뮬레이션덕트 설계 연구)

  • Im, Ju Hyun;Kim, Sun Je;Kim, Myung Ho;Kim, You Il;Kim, Yeong Ryeon
    • Journal of the Korean Society of Propulsion Engineers
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    • 제23권1호
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    • pp.124-131
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    • 2019
  • A design study of gas turbine engine simulation duct was conducted to investigate the operating characteristics and control gain tunning of the Altitude Engine Test Facility(AETF). The simulation duct design involved testing variable spike nozzle and ISO standard choking nozzle to verify the measurements such as mass flow rate and thrust. The simulation duct air flow area was designed to satisfy Ma 0.4 at the aerodynamic interface plane(AIP) at engine design condition. The test conditions for verifying the AETF controls and measurement devices were deduced from 1D analysis and CFD calculation results. The spike-cone driving part was designed to withstand the applied aero-load, and satisfy the axial traversing speed of 10 mm/s at whole operation envelops.

Development Direction of Defense Weapon System for the 4th Industrial Revolution (4차 산업혁명 대응을 위한 국방 무기체계 개발 발전방향)

  • Kim, Sang-Hun;Chey, Seung-Woo;Hong, Sung-pyo
    • Journal of the Korean Society of Industry Convergence
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    • 제22권2호
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    • pp.71-79
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    • 2019
  • Since the announcement of President Klaus Schwab's fourth industrial revolution at the World Economic Forum in Davos, Switzerland in January 2016, the fourth industrial revolution has emerged as a hot topic in our society. The United States, Japan, China, and Germany, which are major advanced nations, are preparing and implementing a strategy and system for responding to the Fourth Industrial Revolution, focusing on information and communication technology (ICT) and manufacturing convergence in response to the fourth industrial revolution era. Korea is announcing the expansion of financial support for R & D investment budget and related industries for major technology related to revolution. In this paper, we analyze the defense R & D project procedure of the Defense Improvement Project, which is responsible for the development of the defense weapon system, and present the development direction of the defense weapon system in accordance with the 4th world industrial revolution trend.

A Study on the Analysis and Improvement of Defense Technology Planning in Response to the Fourth Industrial Revolution (4차 산업혁명 대응을 위한 국방기술기획 분석 및 개선방안 연구)

  • Noh, Sang-Woo;Song, Yu Ha;Choi, Jong-Min
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제19권4호
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    • pp.551-556
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    • 2018
  • With the rise of the fourth industrial revolution, the importance of establishing R&D strategies to develop ICT technologies such as Big Data, Artificial Intelligence, Robots, the Internet of Objects, and 3D Printing is increasing. In this study, we analyzed the effects of the fourth industrial revolution on society and the present state of the national defense technology planning system, and proposed improvement measures for the utilization of the fourth industrial revolution in the defense industry from the perspective of defense R&D. The current defense R&D strategy focuses on securing the core technologies of each weapon system required by the military through research and development. Under the current system, the role of fourth industrial revolution technology will be confined to some of the weapons systems required by the military. In order to overcome this limitation, we propose a technology roadmap for the future weapons systems.

An Evaluation Model Development of Technology Green Index(TGI) and It's Application to Defense R&D Projects (기술녹색도 평가모델 개발 및 적용사례)

  • Choi, Don-Oh;Lee, Hyo-Keun;Lim, Jong-Kwang;Lee, Hun-Gon
    • Journal of the Korea Institute of Military Science and Technology
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    • 제12권3호
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    • pp.299-308
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    • 2009
  • In this paper, we have developed an evaluation model of technology green index(TGI) which includes 3 evaluation factors and 13 indicators. Furthermore, as presenting the degree of relative importance among evaluation factors and indicators for all R&D evaluation stages and all green technology areas, and applying the proposed model to 5 defense projects, we have found applicability of the model to evaluation of defense R&D projects. The results of evaluation using this model can be used to monitor the performance of project life cycle and develop R&D investment strategy of green technology using portfolio analysis.

A Study on the System Requirement Development Process Improvement in Defense R&D Programs (국방 연구개발사업의 시스템 요구사항 개발 프로세스 개선)

  • Kim, Jung-Myong;Park, Young-Won
    • Journal of the Korea Institute of Military Science and Technology
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    • 제12권3호
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    • pp.290-298
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    • 2009
  • This paper proposes a novel process which can develop the system requirements in defense R&D programs. 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. And, the accuracy and quality of system requirements are essential prerequisite to leverage the systems engineering process. To produce the artifacts of systems engineering such as OCD, ORD, and the systems requirements, the system user can write out requirement document using the proposed implementation process and templates without expending heavy work loads.