최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기한국항공우주학회지 = Journal of the Korean Society for Aeronautical & Space Sciences, v.44 no.2, 2016년, pp.139 - 155
정승민 (Department of Aerospace Engineering, Pusan National University) , 김귀순 (Department of Aerospace Engineering, Pusan National University) , 오세종 (Department of Aerospace Engineering, Pusan National University) , 최정열 (Department of Aerospace Engineering, Pusan National University)
본 논문에서는 최근의 우주발사체 기술 발전에 대한 소개가 이루질 것이다. 민간 분야에서의 우주개발 사업들의 사업 모델 및 핵심 기술에 대하여 간단한 정리하고, 핵심 기술의 발전 사항들에 대하여 좀 더 구체적으로 살펴볼 것이다. 특히 Rocketlab 사가 개발 중인 저가 고성능 경량 우주발사체 Electron 에 사용될 예정인 전기펌프 사이클 엔진에 대하여 좀 더 구체적으로 살펴보고, 이들이 로켓 과학자들에게 주는 시사점에 대하여 살펴볼 것이다.
Present paper introduces the recent advances in space launch vehicle technologies. A brief survey is given for the space development programs in civil sector with their business model and key technologies. Advances in key technologies were reviewed in detail with more emphasis on the electric pump c...
* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.
핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
핀틀 분사기의 장점은 무엇인가? | 핀틀 분사기는 한 개의 큰 원기둥이 코어를 감싸는 형태의 분무노즐이 있는 형태로 기존의 수십, 수백개의 분무노즐로 구성된 충돌, 동축형 분사기보다 구조적으로 단순하여 제작단가를 상당히 낮출 수 있는 장점이 있다. TRW사는 핀틀엔진을 연구한 논문에서 기존 인젝터를 이용한 엔진대비 제작단가를 75% 정도 줄일 수 있으며 또한 지상 시험이나 비행시험에서 한 번도 연소불안정을 일으킨 적이 없다고 보고되었다[11]. | |
NASA의 무인 달착륙선 Morpheus 프로젝트의 목표는 무엇인가? | NASA의 무인 달착륙선 Morpheus 프로젝트에서도 액체메탄을 기반으로 한 로켓엔진을 개발하고 있다. 2010년부터 시작된 이 프로젝트는 달에 500kg의 payload를 달표면상에 운반하는 것을 목표로 하고 있다. Fig. | |
케로신이 1단 추진제로 널리 선호되는 이유는 무엇인가? | 145 kg/m3로 연료탱크의 부피가 커지고 저장성이 떨어지지만 연소 생성물의 분자량이 작아 비추력이 매우 크다. 케로신(kerosene)의 경우 비추력은 액화메탄(Liquid Methane, LCH4)보다 다소 작지만 상온저장성과 비중이 0.820로 LCH4에 2배에 달한다는 장점을 가지고 있어 1단 추진제로 널리 선호된다. 비중(specific gravity) 0. |
Virgin Galactic, Retrieved June 4, 2015 from http://www.virgingalactic.com/
SpaceX, Retrieved June 4, 2015, fromhttp://www.spacex.com/
NASA, An Aerojet AJ26 rocket engine is prepared to be installed in the E-1 Test Stand at Stennis Space Center, from www.nasa.gov/
Aerojet Rocketdyne, AJ26 product overview, from http://www.rocket.com/aj26
"Orbital's Cygnus - on a SpaceX Falcon 9?".2014-11-24. Retrieved 2014-11-28. from https://www.orbitalatk.com
The Russian RD-180 engine. Retrived Sep 27, 2014 from http://www.americaspace.com/?p68279
Hyun-Ho Jung, Ye-Rim Lee, Joon-Tae Yoo, Jong-Hoon Yoon, Kyung-Ju Min, Ho-Sung Lee, "Status of Friction Stir Welding for Weight Reduction of Aerospace Vehicle", Current Industrial and Technological Trends in Aerospace, Vol. 12, No 2, Dec 2014, pp.158-165
SpaceX, December 10, 2008, Falcon9 progress update, from http://www.spacex.com/
SpaceX, Complete 100th Merlin 1D Engine, October 22, 2014 from http://www.spacex.com
LMDE, Lunar Module Descent Engine's pintle injector imaged by https://www.flickr.com/photos/jurvetson/4464220730/
TRW, Pintle Engine Heritage and Performance Characteristics, AIAA 2000-3871, Page 1 of 23, 21 of 23.
TRW, Pintle Engine Heritage and Performance Characteristics, AIAA 2000-3871, Page 3 of 22.
SpaceX, CrewDragon complete PAD abort test, May 6, 2015, form www.spacex.com
Crew dragon pad abort test, May 18, 2015 from http://www.spacex.com/mediagallery/detail/129171/5271
NASA, SpaceX Test Fire Engine Prototype for Astronaut Escape System, 2012-02-01 from www.nasa.gov/
Spacex, Dragon version2 : SpaceX's next generation manned spacecraft form www.spacex.com
SpaceX's SuperDraco engine in EOS 3D printer, pictured by Elon Musk from https://twitter.com/elonmusk
Huzel D. K, Huang. D.H, "Modern Engineering for Design of Liquid Propellant Rocket Engines", 3rd edition, Washington D.C., AIAA 1992.
Burkhardt, H., Sippel, M., Klevanski, J.,and Herbertz, A., "Comparative Study of Kerosene and Methane Propellants for Reusable Liquid Booster Stages," 38th Joint Propulsion Conference, Indianapolis, IN, USA, AIAA 2002-5235, 2002.
Applewhite J., "Propulsion Technology Development Overview", NASA, April 2011.
Illustrarion of Possible Methane Sources and Sinks, NASA/JPL-Caltech from http://www.jpl.nasa.gov
"Comparative study of ISRU-based transportation architectures for the Moon and Mars: LOX/LH2 vs. LOX/Methane" Lunar and Planetary Institute. Chicago School of Mines. Retrieved 2 June 2015.
Butler, Amy, Svitak, Amy. "AR1 vs. Raptor: New rocket program will likely pit kerosene against methane" (2014-06-09). Aviation Week & Space Technology.
Scale size comparison of SpaceX first-stage launch vehicles, created March 8, 2014 form https://en.wikipedia.org/wiki/Raptor_(rocket_engine)#/media/File:Falcon_9_v1.0,_Falcon_9_v1.1_and_SHLV_comparison.svg
2011-15 Launch state, launch vehicle standing. Retrieved July 25, 2015 from http://www.spacelaunchreport.com/
Blue Origin's BE-4 Engine from https://www.blueorigin.com/technology
Morpheus Laner in launch positionm imaged from http://mediaarchive.ksc.nasa.gov/detail.cfm?mediaid62511
Robert L. Morehead, John C. Melcher (July 28, 2014). "Combustion Stability Characteristics of the Project Morpheus Liquid Oxygen / Liquid Methane Main Engine" (PDF). Conference Paper from AIAA/ASME/ SAE/ASEE Joint Propulsion Conference; 50th; 28-30 Jul. 2014; Cleveland, OH; United States. Retrieved September 29, 2014.
Jon B. Olansen, PhD; Stephen R. Munday; Jennifer D. Mitchell; Michael Baine, PhD (May 23-25, 2012). "Morpheus: Advancing Technologies for Human Exploration" (PDF). Global Exploration Conference. GLEX-2012.05.2.4x12761.
"Hard at Work - February 2013". Project Morpheus : Blog. NASA - Project Morpheus. Retrieved February 8, 2013.
Morpheus Lander Home page "Morpheus Lander Website". NASA. Retrieved October 25, 2011.
"Equipped with New Sensors, Morpheus Preps to Tackle Landing on its Own". NASA website. NASA. Retrieved April 24, 2014.
"webpage A Visit With Morpheus by Jim Hillhouse, April 14th, 2011". AmericaSpace.
"Space Tourism: A magnifying glass on growing inequality by The Gryphon Web Editor.", retrieved Desember 1, 2014 from http://www.thegryphon.co.uk
"LauncherOne: Virgin Galactic's other project." November 10, 2009 from http://www.bbc.co.uk/blogs/thereporters/jonathanamos
Abbott, Joseph (May 8, 2013). "SpaceX's Grasshopper leaping to NM spaceport". Waco Tribune. Retrieved October 25, 2013 from http://www.wacotrib.com/news/business
Foust, Jeff (May 5, 2014). "Following up: reusability, B612, satellite servicing". The Space Review. Retrieved May 6, 2014 from http://www.thespacereview.com
Wang, Brian (March 23, 2013). "Spacex May try to "land / recover" the first stage of it next Falcon 9 v1.1 launch this summer". Next Big Future, retrieved April 6, 2013 from http://nextbigfuture.com/2013/03/spacex-may-try-to-land-recover-first.html
The Illustrated Guide to SpaceX's Reusable Rocket Launch, Popular Mechanics, Apr 13, 2015 retrieved from http://www.popularmechanics.com/space/rockets/a13927/space-reusable-falcon-9-diagram/
SpaceX resuable rocket flight plan. Retrieved Jan 7, 2015 from http://www.americaninfographic.com/
Svitak, Amy (2013-03-05). "Falcon 9 Performance: Mid-size GEO?". Aviation Week. Archived from the original on 2014-03-25, retrieved 2014-03-25.
SpaceX overview, Tom Markusic, Director, McGregor Rocket Development Facility 27 July, 2010 from http://www.spacex.com/
Comparison of orbital launch systems, form Wikipedia and free encyclopedia http://www.spacelaunchreport.com, https://en.wikipedia.org/wiki/Comparison_of_orbital_launch_systems
"Airbus Defence and Space's solution to reuse space Launchers." Airbus. Retrieved June 12, 2015 from http://airbusdefenceand space.com/reuse-launchers/
"Move over SpaceX: Airbus unveils reusable rocket that has wings and propellers and flies back to earth like a plane", retrived June 8, 2015, from http://www.dailymail.co.uk/sciencetech/article-3115080/Move-Space-X-Airbus-unveils-reusable-rocket-called-Adeline.html
"Airbus stellt Geheimkonzept vor". Retrieved July 06, 2015 from http://www.n-tv.de/wissen/Airbus-stellt-Geheimkonzept-vor-article15247526.html
"Vulcan: Innovative Next Generation Launch System will Provide Country's Most Reliable, Affordable and Accessible Launch" http://www.ulalaunch.com/ula-unveils-americas -new-rocket-vulcan.aspx
"RocketLab", Retrieved June 4, 2015 fromhttp://www.rocketlabusa.com/
"3D model of Electron. Christophe Campos", Retrieved February 24, 2015 http://mainenginestart.blogspot.kr/2015/02/elec tron-contd-6.html
"Rocket Lab is building a space launch vehicle, named Electron, at its Auckland facility." Retrieved July 29, 2014 from https://www. tvnz. co.nz/one-news/newzealand/nz-company-to-launch-ground-breakingrocket-6040782
"A 3d-printed, battery-powered rocket engine." Retrieved April 15, 2015 from http://www.popsci.com/rocket-labs-got-3d-print ed-battery-powered-rocket-engine
"RocketLab, propulsion Rutherford engine specification", from http://www.rocketlabusa.com/ about-us/propulsion/rutherford/
"World's First Battery-Powered Rocket Engine To Make Space More Accessible", retrived June 10, 2015 from http://www.gettyimages.com.au/detail/news-photo/rocketlab-ceo-peter-beck-poses-with-the-rutherford-at-the-news-photo/476477908
*원문 PDF 파일 및 링크정보가 존재하지 않을 경우 KISTI DDS 시스템에서 제공하는 원문복사서비스를 사용할 수 있습니다.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.