• 제목/요약/키워드: Chemical Propulsion

검색결과 211건 처리시간 0.023초

영국의 우주비행체용 화학추진 및 전기추진시스템 개발 (Development of Chemical and Electric Propulsion Systems for Spacecraft in UK)

  • 한조영
    • 항공우주시스템공학회지
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    • 제2권1호
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    • pp.37-45
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    • 2008
  • KARI has jointly developed COMS bipropellant propulsion system with EADS Astrium, UK. It is well known at the moment about American or even German efforts for space development and space propulsion activities. On the contrary UK's capability for space development hasn't been recognised well in Korea. The major space activities relevant to the development of chemical and electric propulsion systems in UK, in reference to our space propulsion programme are addressed in detail. In addition the collaboration in prospect between two countries is proposed.

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화학추진시스템의 달탐사위성 적용 가능성 연구 (Feasibility Study of Chemical Propulsion System for Moon Explorer)

  • 한조영;김방엽
    • 한국추진공학회지
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    • 제13권4호
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    • pp.22-29
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    • 2009
  • 달탐사위성(궤도선) 1호는 2017년 착수 2020년 발사하고, 달탐사위성(착륙선) 2호는 2021년 착수 2025년 발사를 추진하게 되어 있다. 본 연구에서는 달탐사위성에 적용 가능한 추진시스템에 대한 개념적인 타당성 검토 연구를 수행한다. 우선 단일/이원/전기 추진시스템의 활용 관련해 국내외의 사례들을 검토한다. 이후 임무해석을 통한 속도증분을 구하고, 이를 바탕으로 추진제 예산을 산출하여 달탐사위성 추진시스템으로 가능한 화학추진시스템을 고찰한다.

국내의 대표적 인공위성 화학추진시스템의 형식 및 특성 (Types and Characteristics of Chemical Propulsion Systems for Repersentative Korean Satellites)

  • 한조영
    • 한국항공우주학회지
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    • 제35권8호
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    • pp.747-752
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    • 2007
  • 국내의 위성 개발 프로그램은 정지궤도위성인 통신해양기상위성과 저궤도위성인 다목적실용위성으로 대별할 수 있다. 각 위성은 임무 요구조건을 충족하는 추진시스템을 탑재하고 있다. 통신해양기상위성에는 위성체의 지구정지궤도 진입, 자세 및 궤도 제어/조정을 위하여 요구되는 추력과 토크를 제공하는 이원추진제 추진시스템인 화학추진시스템이 탑재되어 있으며, 반면 다목적실용위성에는 궤도전이 기능이 배제된, 궤도상 자세제어가 주목적인 단일추진제 추진시스템이 장착되어 있다. 본 연구에서는 이 두 추진시스템의 차이점 및 특성을 비교 분석한다.

알루미늄 함량에 따른 추진제 노화 특성 (Propellant Aging Characteristics According to Aluminum Contents)

  • 정재윤;박정호
    • 한국추진공학회지
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    • 제24권4호
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    • pp.66-72
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    • 2020
  • 본 논문은 알루미늄 함량 변화에 따른 추진제의 후경화에 대한 영향성, 화학적 노화도에 관하여 기술하였다. 동일 경화조건에서 알루미늄 함량이 18 wt%인 추진제가 2 wt%인 추진제 대비 후경화 기간이 길어지는 것으로 확인하였다. 반면 후경화가 포함된 화학적 노화도 분석에서는 알루미늄 함량이 18 wt%인 추진제가 2 wt%인 추진제 대비 화학적 노화가 천천히 진행되는 것을 확인하였다.

First Bipropellant Propulsion System for Spacecraft in Korea

  • Han, Cho-Young;Chae, Jong-Won;Park, Eung-Sik;Baek, Myung-Jin
    • 한국추진공학회:학술대회논문집
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    • 한국추진공학회 2008년 영문 학술대회
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    • pp.307-310
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    • 2008
  • In the framework of COMS(Communication, Ocean and Meteorological Satellite) programme, the first bipropellant propulsion system for GEO satellite has been developed successfully. So far Korea has its own experience of development of a monopropellant propulsion system for LEO satellites, i.e., KOMPSAT's. Other types of propulsion systems for a satellite, such as cold gas and electric propulsion etc., are being developed somewhere in Korea, however they are not commercialised yet, apart from those two systems aforementioned. This paper mainly focused on the design of the Chemical Propulsion System(CPS) for the COMS, joint scientific and communications satellite. It includes descriptions of the general system design and a summary of the supporting analysis performed to verify suitability for space flight. Essentially it provides an overview and guide to the various engineering rationale generated in support of the COMS CPS design activities. The manufacture and subsequent testing of COMS CPS are briefly discussed. Feasibility of COMS CPS to an interplanetary mission is proposed as well.

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COMS 특별세션 (COMS BIPROPELLANT PROPULSION SYSTEM)

  • Han, Cho-Young;Park, Eung-Sik;Baek, Myung-Jin;Lee, Ho-Hyung
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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    • pp.41-44
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    • 2007
  • Korea Aerospace Research Institute (KARI) has jointly developed a bipropellant propulsion system for Communication, Ocean and Meteorological Satellite (COMS) with EADS Astrium in UK. The technology relevant to a bipropellant propulsion system is quite new one in Korea, which is transferred for the first time, with development of COMS propulsion system. It hasn't ever attempted before, and hasn't got any general idea itself as well, in Korea. The COMS Chemical Propulsion System (CPS) is designed to perform both the orbital injection function, to take the spacecraft from transfer orbit to Geostationary Earth Orbit (GEO), and all on-station propulsive functions throughout the lifetime of the satellite. All station keeping manoeuvres are performed using the CPS. The design, manufacture and testing of COMS CPS are addressed in this paper. Feasibility of COMS CPS applicable to the other advanced mission is investigated as well.

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영국산 화학추진시스템의 기술이력과 통신해양기상위성 이원추진제 추진시스템 (Technical Heritage of UK Chemical Propulsion Systems and COMS Bipropellant Propulsion System)

  • 한조영
    • 항공우주시스템공학회지
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    • 제2권1호
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    • pp.28-36
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    • 2008
  • The technology relevant to a bipropellant propulsion system is quite new one in Korea, which is being transferred for the first time, with development of COMS propulsion system. It hasn't ever attempted before, and hasn't got any general idea itself as well, in Korea. The technical heritage of UK bipropellant propulsion pertinent to COMS propulsion system is scrutinised mainly. Furthermore the strong possibility of COMS CPS for the moon explorer mission is rationalised on the basis of the history of successful predecessors.

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