| 词条 | Vikas (rocket engine) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
|image=Vikas engine of ISRO.JPG |image_size=250 |caption=Model of the Vikas engine |name =Vikas |country_of_origin=India |manufacturer = Godrej & Boyce and MTAR Technologies[1] |designer =ISRO |predecessor =Viking |successor = |status =Active |purpose = |type =liquid |fuel =UDMH |oxidiser =N2O4 |capacity = |cycle =Gas generator |thrust =800 kN[2] |specific_impulse_vacuum ={{convert|290|isp}}[3] |chamber_pressure =5.87 MPa,(58.5 bar) [3] |thrust_to_weight = |length ={{convert|3.70|m|abbr=on}}(Vikas-4B) |diameter = |inert mass = |launch mass = 120 in (3,000 mm) |used_in =2nd stage of PSLV and GSLV Main stage L110 of GSLV Mk.III }} The Vikas (a portmanteau from initials of VIKram Ambalal Sarabhai[4][5] ) is a family of liquid fuelled rocket engines conceptualized and designed by the Liquid Propulsion Systems Centre in the 1970s.[6][7] The design was based on the licensed version of the Viking engine with the chemical pressurisation system.[8] The early production Vikas engines used some imported French components which were later replaced by domestically produced equivalents.[9] It is used in the Polar Satellite Launch Vehicle (PSLV) and the Geosynchronous Satellite Launch Vehicle (GSLV) series of expendable launch vehicles for space launch use. Vikas engine is used to power the second stage PSLV, boosters and second stage of GSLV Mark I and II and the first stage of GSLV Mark III. The propellant loading for Vikas engine in PSLV, GSLV Mark I and II is 40 tons, while in GSLV Mark III it is 55 tons. Technical detailsThe engine uses up about 40 metric tons of UDMH as fuel and Nitrogen tetroxide (N2O4) as oxidizer with a maximum thrust of 725 kN. An upgraded version of the engine has a chamber pressure of 58.5 bar as compared to 52.5 bar in the older version and produces a thrust of 800 kN. The engine is capable of gimballing. The rocket benefited from technological cooperation from the Viking 4A engine built by CNES/SEP of France.[10][11] The primary difference being that the Vikas is rated for a longer burn time. For launches from 2018 a 6% increased thrust version of the Vikas engine was developed. It was demonstrated on 29 March 2018 in the GSAT 6A launch second stage. It will be used for the four Vikas engines first stage boosters on future missions.[12] Variants
External links
References1. ^{{cite news|title=Manna from Mars ISRO's first mission to the red planet provides a fillip to its local component suppliers.|url=http://businesstoday.intoday.in/story/india-maiden-mars-orbiter-mission-companies-role/1/200601.html|accessdate=14 February 2014|newspaper=Business Today|date=8 December 2013}} {{Rocket engines}}2. ^India's VIKAS engines and its relationship to the European Viking engines {{Webarchive|url=https://web.archive.org/web/20151222161122/http://www.b14643.de/Spacerockets_1/India/Vikas/Vikas.htm |date=2015-12-22 }} Norbert Brügge, Germany 24 December 2014 3. ^1 PSLV Launch Vehicle Information Space Flight 101 24 December 2014 4. ^{{cite news|author1=M Ramesh|title=Godrej Aerospace to make semi-cryogenic engines|url=http://www.thehindubusinessline.com/news/has-been-supplying-the-vikas-engines-for-isros-rockets/article6705014.ece|work=The Hindu Business Line|date=18 December 2014|language=en}} 5. ^{{Cite book|url=https://books.google.com/books?id=Ks1SDwAAQBAJ&pg=PT191|title=Ready To Fire: How India and I Survived the ISRO Spy Case|last=Narayanan|first=Nambi|last2=Ram|first2=Arun|date=2018|publisher=Bloomsbury Publishing|isbn=978-93-86826-27-5|page=191}} 6. ^{{cite web|url=http://www.hindu.com/2001/12/03/stories/2001120300481300.htm|title=ISRO tests Vikas engine|publisher=The Hindu|date=2001-12-03|accessdate=2012-12-11|deadurl=no|archive-url=https://web.archive.org/web/20140323164318/http://www.hindu.com/2001/12/03/stories/2001120300481300.htm|archive-date=2014-03-23|df=dmy-all}} 7. ^{{cite web|url=http://www.thaindian.com/newsportal/sci-tech/unsung-hero-of-moon-mission-is-sad-but-forgiving_100226418.html|title=Unsung hero of moon mission is sad but forgiving|author=K.S. Jayaraman|agency=IANS|publisher=Thaindian.com|date=2009-08-02|accessdate=2012-12-11|deadurl=no|archive-url=https://web.archive.org/web/20180110175535/http://www.thaindian.com/newsportal/sci-tech/unsung-hero-of-moon-mission-is-sad-but-forgiving_100226418.html|archive-date=2018-01-10|df=dmy-all}} 8. ^{{cite book|last1=Sutton|first1=George Paul|title=History of Liquid Propellant Rocket Engines|date=2006|publisher=AIAA|isbn=9781563476495|page=799|url=https://books.google.com/books?id=s1C9Oo2I4VYC&pg=PA799|language=en}} 9. ^{{cite book|last1=Sutton|first1=George Paul|title=History of Liquid Propellant Rocket Engines|date=2006|publisher=AIAA|isbn=9781563476495|page=882|url=https://books.google.com/books?id=s1C9Oo2I4VYC&pg=PA882|language=en}} 10. ^{{cite news|title=PSLV launches with IRNSS-1D to open India’s 2015 campaign|url=http://www.nasaspaceflight.com/2015/03/pslv-launch-irnss-1d-indias-2015-campaign/|agency=NASA|publisher=NASA SpaceFlight|date=28 March 2015}} 11. ^{{cite news|title=India Successfully Launches Their Largest Rocket To Date|url=http://www.asianscientist.com/2014/12/topnews/india-successfully-launches-largest-rocket-date/|publisher=The Asian Scientist|date=24 December 2014}} 12. ^{{cite news |url=https://spaceflightnow.com/2018/03/29/india-tests-upgraded-engine-tech-in-successful-communications-satellite-launch/ |title=India tests upgraded engine tech in successful communications satellite launch |last=Clark |first=Stephen |publisher=Spaceflight Now |date=29 March 2018 |accessdate=30 March 2018}} 13. ^{{Cite web|url = http://www.b14643.de/Spacerockets_1/India/Vikas/Vikas.htm|title = India's VIKAS engines and its relationship to the European Viking engines|date = |accessdate = 11 December 2015|website = B14643 Internet Presentation to Space Launch Vehicles|publisher = Norbert Brügge|last = Brügge|first = Norbert|archive-url = https://web.archive.org/web/20151222161122/http://www.b14643.de/Spacerockets_1/India/Vikas/Vikas.htm|archive-date = 22 December 2015|dead-url = yes|df = dmy-all}} 3 : Rocket engines of India|Rocket engines using hypergolic propellant|Rocket engines using the gas-generator cycle |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 随便看 |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。