• Title/Summary/Keyword: Weapon

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The Direction Presentation for Quality Improvement of Weapon System based on R&D Characteristics in Defense Field (국방분야의 연구개발 특성분석을 통한 무기체계 품질향상 방향 제시)

  • Park, Sangeun;Hong, Jaeyoung
    • Journal of Korean Institute of Industrial Engineers
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    • v.43 no.2
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    • pp.120-126
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    • 2017
  • This paper has proposed the development direction and R&D analysis approach that the diversity of defense R&D process and product should be mainly under consideration. It has shown that there is a fair possibility of the various quality assess to meet the R&D requirements in defense-based. Thus, the analysis on multiple quality elements is carried out with defense R&D characteristics. Especially, a quality management master planning based on the quality model of establishing defense R&D policy has proposed, identifying relevant quality characteristics on the R&D of weapon system and the R&D of core technology. That is, this paper is not only interested in determining an appropriate model for improving the quality of a R&D weapon system but also argued efforts in order to reap the best possible outcome and process on both the R&D of weapon system and quality of the R&D of core technology including present R&D activities.

On Enhancing Test and Evaluation Process of Weapon Systems Development using DSM-Based Risk and Safety Management (DSM기법에 의한 위험 및 안전 관리를 통해 무기체계 시험평가 프로세스의 개선에 관한 연구)

  • Sim, Sang Hyun;Lee, Jae-Chon
    • Journal of the Korea Safety Management & Science
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    • v.17 no.2
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    • pp.89-96
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    • 2015
  • The weapon systems development has some distinct characteristics in that a big size of government budget (derived from national tax) has been expended frequently and the completion of the development projects seems to take long. Thus, the impact of the potential changes in the required operational capability on the development activities can induce some type of project risks. As such, proper management of project risk has been one of crucial subjects in the weapon systems development. Although a variety of methods can be considered, an approach based on the test and evaluation (T&E) process has been selected in this paper in order to appropriately handle those potential risks. In the study of the underlying T&E process, the safety consideration (for instance, explosiveness) of weapon systems is also included. To achieve the objective of the paper, a step-by-step procedure is first presented in the analysis of the T&E process. Then, to pursue some enhancement on the process, a set of necessary and useful activities are added in terms of risk and safety management. The resultant process is further analyzed and tailored based on a design structure matrix method. The case study of a tank development is also discussed.

Mean Field Game based Reinforcement Learning for Weapon-Target Assignment (평균 필드 게임 기반의 강화학습을 통한 무기-표적 할당)

  • Shin, Min Kyu;Park, Soon-Seo;Lee, Daniel;Choi, Han-Lim
    • Journal of the Korea Institute of Military Science and Technology
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    • v.23 no.4
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    • pp.337-345
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    • 2020
  • The Weapon-Target Assignment(WTA) problem can be formulated as an optimization problem that minimize the threat of targets. Existing methods consider the trade-off between optimality and execution time to meet the various mission objectives. We propose a multi-agent reinforcement learning algorithm for WTA based on mean field game to solve the problem in real-time with nearly optimal accuracy. Mean field game is a recent method introduced to relieve the curse of dimensionality in multi-agent learning algorithm. In addition, previous reinforcement learning models for WTA generally do not consider weapon interference, which may be critical in real world operations. Therefore, we modify the reward function to discourage the crossing of weapon trajectories. The feasibility of the proposed method was verified through simulation of a WTA problem with multiple targets in realtime and the proposed algorithm can assign the weapons to all targets without crossing trajectories of weapons.

Analysis of the Upper-Air Temperature Condition for Weapon System Operating in the Korean Peninsula (한반도 지역의 고층대기에서 운용되는 무기체계를 위한 기온 조건 분석)

  • Kim, Hyun-myung;Kang, Dong-sik;Yang, Won-seok
    • Journal of the Korea Institute of Military Science and Technology
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    • v.22 no.1
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    • pp.141-149
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    • 2019
  • This study analyzed upper-air temperatures in order to make temperature conditions for weapon system operating in Korean Peninsula. One of important tasks of environmental analysis is to set-up suitable temperature conditions for successful development of weapon system. Many weapon system developers are setting air temperature conditions based on the MIL-STD-810G. However, for weapons systems that are used only in the upper-air of the Korean Peninsula, the air temperature conditions recommended by MIL-STD-810G are often not suitable. To establish the air temperature conditions for upper-air in the Korean Peninsula, the method of Percentage of Occurrence should has be built up as method of temperature analysis. Upper-air climate data of the Korea Peninsulas over the past decade is also analyzed based on this method. The study suggest upper-air temperature conditions for weapons systems that are operated only in the Korean peninsula.

System Safety Application for the Weapon System (무기체계 시스템안전 적용방안)

  • Park, Suncheol;Kim, Jinsung;Jin, Jonghoon;Yoon, Donghwan
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.44 no.4
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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.

A Study on the Method for Setting the Optimal Maintenance Concept based on RAM-C Using Modeling & Simulation (M&S를 활용한 RAM-C 기반 최적 정비 개념 설정 방안 연구)

  • Kim, Kyungrok;Lee, Kiwon;Jeong, Jun;Cha, Jonghan
    • Journal of the Korea Institute of Military Science and Technology
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    • v.25 no.5
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    • pp.530-538
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    • 2022
  • Recently, the R&D of weapon systems has been strengthened in terms of economic cost management throughout the entire life cycle from performance. This study proposes the method for setting the optimal maintenance concept based on RAM-C in weapon system acquisition stage by calculating the operation & maintenance cost as well as reliability, availability, and maintainability. First, we design a simulation model for analysis of weapon system logistic supportability. In addition, information such as weapon system Part Breakdown Structure, operation & maintenance system, cost, and etc for simulation analysis, is applied. Based on the obtained simulation results, the optimal plan is selected among alternatives designed with various maintenance concepts through normalization and weight setting. It is expected to be of technical help in the application of RAM-C in the weapon system acquisition stage.

Design for Weapon Live Test Decision Support System Using Digital Twin Architecture (디지털 트윈 아키텍처를 활용한 무기체계 성능시험 지원체계 설계)

  • Kim, Eungsu;Ryu, Kiyeol
    • Journal of the Korea Institute of Military Science and Technology
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    • v.25 no.5
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    • pp.501-512
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    • 2022
  • The purpose of the weapon live test during the phase of development is to provide essential information to decision makers that verify and validate the performance capabilities of weapons. Due to varying allocation and high variance of test resources with an increase in the weapon system's capability, the test environment can get highly complex, which can lead to a decrease in the reliability of test results. This issue can be addressed by applying a decision support system that provides various timely information collected by resources during the test process. The decision support system can be designed by applying the concept of digital twins, that are defined as digital replicas of components, systems and processes. This paper describes a design methodology of the decision support system that consists of digital models and service functions using digital twin architecture. A case study illustrates the feasibility of the proposed methodology in supporting the weapon live test process.

A study on the Improvement Direction of Design Phase Entry Criteria Review for Naval Surface Ships & Onboard Weapon Systems R&D Project (함정 및 함정탑재 무기체계 연구개발사업의 설계단계 진입조건 검토 개선 방향)

  • Kwang Yong Hwang;Dong Myung Seol;Bong Wan Choi
    • Journal of the Korean Society of Systems Engineering
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    • v.19 no.1
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    • pp.79-90
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    • 2023
  • In principle, R&D of general weapons systems are led by companies or government-funded organizations. In terms of project execution, the defense R&D planning system was reorganized to conduct SE-based project management by integrating the naval ship project execution procedure into the general weapon system R&D procedure. The development progress was confirmed according to the guide for SE application of DAPA, and a technical review meeting was proposed to enter into the each next phase in the R&D process. This paper focuses on improvement for technical review in terms of technical management based on system engineering for R&D mounted weapon systems and the naval surface ship project in preliminary design and detailed design. So, the improvement direction for reviewing the entry criteria for the R&D weapons systems of the naval ship and mounted weapons is proposed.

Design and Evaluation of a Control Stick for Weapon Systems Using RS-422 Communication and an Embedded Processor (RS-422 통신과 임베디드 프로세서를 이용한 무장 조종간의 설계 및 평가)

  • Young-Jun Lee
    • The Journal of the Korea institute of electronic communication sciences
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    • v.19 no.4
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    • pp.647-654
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    • 2024
  • In military weapon systems, control sticks for weapon operation are essential. This paper presents the design and performance evaluation of a control stick for weapon systems using RS-422 communication and an embedded processor. This control stick is ergonomically designed, considering the hand dimensions of Korean pilots and mission convenience. The circuitry and software based on RS-422 communication were designed using an embedded processor. A prototype of the control stick was manufactured and subjected to a series of tests, including basic performance tests and various environmental tests such as altitude, high temperature, low temperature, temperature shock, humidity, rain, vibration shock, and acceleration, all of which met the required standards.

A Study on the Improvement of the Doctrine, Organization and Training Affair for Weapon Systems (무기 체계 전력화 지원요소 업무 개선방안)

  • 윤현석;최석철
    • Journal of the military operations research society of Korea
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    • v.29 no.2
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    • pp.111-130
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    • 2003
  • This paper deals with the improvement of doctrine, organization, and training for Weapon systems during the defense acquisition process. We analyze the combat development element such as doctrine, organization, and training which is working in the United States of America. then we apply the ideas to our proposal for the improvement of doctrine, organization, and training for weapon systems. This paper will be contributed to the improvement of doctrine, organization, and training and the efficiency of defense acquisition program management.