• Title/Summary/Keyword: Miniature Guided-bullet

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Recent Status on Miniature Smart-bullet Techniques (초소형 스마트탄 최근기술 동향분석)

  • Lee, Seongheon;Cho, Hanjin;Cho, Youngki;Bang, Hyochoong
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.43 no.3
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    • pp.272-281
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    • 2015
  • Miniature smart-bullet is a human-carrying guided missile designed to hit a target easily while having a miniature size. Contrary to the normal missiles, miniature smart-bullet is highly expected to enhance the military strength and survival rate of troops by its compact size readily carriable to a single soldier. In this paper, previously developed techniques, activities and patents of miniature smart-bullet, particularly its structural shape and actuators are surveyed. Furthermore, analysis of required techniques to develop a miniature smart-bullet are also discussed for upcoming conceptual design.

Study on the Flutter Prediction of the Miniature Guided-bullet Control Surface System (초소형 유도탄 구동날개 시스템의 플러터 예측에 관한 연구)

  • Lee, Seongheon;Cho, Youngki;Cho, Hanjin;Bang, Hyochoong
    • Journal of the Korea Institute of Military Science and Technology
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    • v.20 no.1
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    • pp.148-157
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    • 2017
  • Miniature guided-bullet is an advanced military technology of developing guided missile which is designed to hit a target precisely while having easily carriable miniature size. A key issue of developing such system involves size reduction of the original guided missile system, and this in turn arouses stiffness issue regarding small and thin sized control surface. In this study, procedures on how to calculate the critical flutter speed of special type of control surface with the change of its dimension or material property is arranged. During this procedure, design parameters related to critical flutter speed are abridged to help preliminary design of similar structure even faster than time-consuming, and cumbersome computer analysis.

Design for a Subminiature Solid Rocket Motor (초소형 고체 로켓 모터의 설계)

  • Lee, Sunyoung;Lee, Hyunseob;Yang, Heeseong;Khil, Taeock;Kim, Dongwook;Bang, Jaehoon;Choi, Sungho;Lee, Yongseon
    • Journal of the Korean Society of Propulsion Engineers
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    • v.24 no.6
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    • pp.45-52
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    • 2020
  • In this paper, a subminiature solid rocket motor(SSRM) was designed to develop a miniature smart-bullet and the designed propellant grain was made of thermoplastic propellant for production convenience of inner shape. The internal ballistics analysis and ground test were performed to investigate the performance of SSRM. And a numerical simulation was carried out to obtain basic data on the design of safety distance between the nozzle outlet and a gunner, the temperature distribution of exhaust gas was analyzed by comparing a numerical simulation and the results of IR camera.