{"id":10714,"date":"2022-01-11T08:00:00","date_gmt":"2022-01-11T08:00:00","guid":{"rendered":"https:\/\/knowhow.distrelec.com\/?p=10714"},"modified":"2022-01-24T14:45:44","modified_gmt":"2022-01-24T14:45:44","slug":"hur-byggdes-den-ateranvandbara-raketen-spacex-falcon-9","status":"publish","type":"post","link":"https:\/\/knowhow.distrelec.com\/sv\/forsvar-flyg-och-marin\/hur-byggdes-den-ateranvandbara-raketen-spacex-falcon-9\/","title":{"rendered":"Hur byggdes den \u00e5teranv\u00e4ndbara raketen SpaceX Falcon 9?"},"content":{"rendered":"\n<p><em>Vad \u00e4r framtiden f\u00f6r rymdf\u00e4rder? Kommer civila att resa fritt ut i rymden och ha m\u00f6jlighet att flytta till en annan planet? Med Elon Musks planer p\u00e5 att bygga en stad p\u00e5 Mars 2050 \u00e4r allt m\u00f6jligt. Men f\u00f6r tillf\u00e4llet till\u00e5ter verkligheten m\u00e4nniskan att se, eller n\u00e5gra att ta del i, olika planeters utforskning. En av raketerna som g\u00f6r det m\u00f6jligt \u00e4r Falcon 9.<\/em><\/p>\n\n\n\n<p>SpaceX Falcon 9 \u00e4r en tv\u00e5stegsraket som delvis kan \u00e5teranv\u00e4ndas. Designad f\u00f6r att flytta utforskningen av rymden fram\u00e5t och m\u00f6jligg\u00f6ra kostnadseffektiv transport av satelliter. Dessutom kan den skicka bes\u00e4ttningsrymdfarkoster i omloppsbana. Den senaste versionen av f\u00f6rsta steget Falcon 9-raketen kan \u00e5terv\u00e4nda till jorden och flygas igen m\u00e5nga g\u00e5nger.<\/p>\n\n\n\n<h2 id=\"utvecklingen-av-spacex-falcon-9-raketen\" class=\"wp-block-heading\">Utvecklingen av SpaceX Falcon 9-raketen<\/h2>\n\n\n\n<p>SpaceX ledd av entrepren\u00f6ren och miljard\u00e4ren Elon Musk startade 2002. Den ursprungliga id\u00e9n var att revolutionera rymdfarten och utveckla rymdresor. Tillverkaren och Musk b\u00f6rjade med Falcon 1. En raket med en kapacitet p\u00e5 670 kilogram. Den var den f\u00f6rsta b\u00e4rraketen med flytande br\u00e4nsle tillverkad av ett privat f\u00f6retag som n\u00e5dde jordens omloppsbana. Efter tre misslyckade uppskjutningar landade Falcon 1 f\u00f6r femte och sista g\u00e5ngen den 14 juli 2009.<\/p>\n\n\n\n<p>Sedan b\u00f6rjade Falcon 9:s era med sin f\u00f6rsta flygning den 4 juni 2010 fr\u00e5n Cape Canaveral, Florida. Redan tv\u00e5 \u00e5r senare den 7 oktober skrev Falcon 9-raketen historia som det f\u00f6rsta \u00e5terf\u00f6rs\u00f6rjningsuppdraget till den internationella rymdstationen (ISS). Det var den f\u00f6rsta privatlanserade farkosten och var den f\u00f6rsta som erbj\u00f6d \u00e5teranv\u00e4ndbarhet. 2014 b\u00f6rjade testerna p\u00e5 den \u00e5teranv\u00e4ndbara f\u00f6rsta etappen av Falcon 9.<\/p>\n\n\n\n<p>SpaceX ledd av entrepren\u00f6ren och miljard\u00e4ren Elon Musk startade 2002. Den ursprungliga id\u00e9n var att revolutionera rymdfarten och utveckla rymdresor. Tillverkaren och Musk b\u00f6rjade med Falcon 1. En raket med en kapacitet p\u00e5 670 kilogram. Den var den f\u00f6rsta b\u00e4rraketen med flytande br\u00e4nsle tillverkad av ett privat f\u00f6retag som n\u00e5dde jordens omloppsbana. Efter tre misslyckade uppskjutningar landade Falcon 1 f\u00f6r femte och sista g\u00e5ngen den 14 juli 2009.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Falcon 9 | Overview\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/Z4TXCZG_NEY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Den 8 april 2016 landade SpaceX f\u00f6r f\u00f6rsta g\u00e5ngen en del av sin Falcon-raket p\u00e5 ett dr\u00f6narskepp. Efter det gjorde SpaceX sin f\u00f6rsta \u00e5teruppskjutning av ett tidigare fluget Falcon 9-f\u00f6rsteg den 30 mars 2017. SES-10-uppdraget det \u00e5ret var f\u00f6rsta g\u00e5ngen d\u00e5 ett grundsteg i en raket som klarar omloppsbana \u00e5teranv\u00e4ndes. Och p\u00e5 s\u00e4ttet <a href=\"https:\/\/spaceflightnow.com\/2021\/11\/13\/spacex-launch-starts-deployment-of-new-starlink-orbital-shell\/\" target=\"_blank\" rel=\"noreferrer noopener\">SpaceX skickade 53 Starlink internetsatelliter<\/a> f\u00f6r ett halv\u00e5r sedan visar att f\u00f6retaget fortfarande g\u00f6r det b\u00e4sta av \u00e5teranv\u00e4ndbarheten.<\/p>\n\n\n\n<h2 id=\"hur-fungerar-falcon-9\" class=\"wp-block-heading\">Hur fungerar Falcon 9?<\/h2>\n\n\n\n<p>Enligt <a href=\"https:\/\/spacex-info.com\/stats\/\" target=\"_blank\" rel=\"noreferrer noopener\">SpaceX statistik<\/a>, hade raketer fr\u00e5n Falcon 9-familjen skjutit upp 127 satelliter och deltagit i 135 fulla uppdrag med endast 2 misslyckanden. Detta r\u00e4knas f\u00f6r en framg\u00e5ngsfrekvens p\u00e5 98,43 %. Och den senaste Falcon Heavy 2018 har bara flugit tre uppdrag hittills men det finns fler planer f\u00f6r framtiden. <\/p>\n\n\n\n<p>Under tiden 2018 skedde den f\u00f6rsta Falcon Heavy testflygningen den 8 februari. \u00c4ven om det centrala grunsteget f\u00f6rst\u00f6rdes, \u00e5tervanns tv\u00e5 sidoboosters framg\u00e5ngsrikt och \u00e5terv\u00e4nde till Cape Canaveral. Som sagt av John M. Logsdon p\u00e5 <a href=\"https:\/\/www.britannica.com\/technology\/Falcon-launch-vehicle\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Falcon<\/em><\/a>, en Tesla Roadster, nyttolasten, &#8221;placerades i omloppsbana runt solen&#8221;. Efter alla dessa steg mot att skicka m\u00e4nniskor i omloppsbana fr\u00e5n amerikansk mark skedde det \u00e4ntligen. Falcon 9 lanserade sin <a href=\"https:\/\/www.nasa.gov\/press-release\/nasa-astronauts-launch-from-america-in-historic-test-flight-of-spacex-crew-dragon\" target=\"_blank\" rel=\"noreferrer noopener\">f\u00f6rsta privata rymdfarkost<\/a>, en Crew Dragon med astronauterna Doug Hurley och Robert Behnken 2020.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><em>Falcon 9 \u00e4r v\u00e4rldens f\u00f6rsta \u00e5teranv\u00e4ndbara raket i omloppsklass. \u00c5teranv\u00e4ndbarhet g\u00f6r det m\u00f6jligt f\u00f6r SpaceX att \u00e5teravfyra de dyraste delarna av raketen, vilket i sin tur drar ner kostnaden f\u00f6r rymdtillg\u00e4nglighet.<\/em> <\/p><cite><a href=\"https:\/\/www.spacex.com\/vehicles\/falcon-9\/\" target=\"_blank\" rel=\"noreferrer noopener\">SpaceX<\/a><\/cite><\/blockquote>\n\n\n\n<h3 id=\"matt\" class=\"wp-block-heading\">M\u00e5tt<\/h3>\n\n\n\n<p>F\u00f6r att beskriva tekniken bakom Falcon 9-raketen \u00e4r det v\u00e4rt att n\u00e4mna dess m\u00e5tt. Raketen \u00e4r n\u00e4stan 70 meter h\u00f6g, v\u00e4ger 549 054 kg och kan generera \u00f6ver 7 500 kilonewtons dragkraft vid start. Detta inneb\u00e4r att Falcon 9 kan skicka 22 800 kg i omloppsbana runt jorden samt 8 300 kg till Mars. Men de har \u00e4nnu inte gjort n\u00e5got p\u00e5 den r\u00f6da planeten. Mars \u00e4r Elon Musk och SpaceX plan att \u00e5ka till, d\u00e5 de s\u00e5 sm\u00e5ningom vill landa m\u00e4nniskor d\u00e4r.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img  loading=\"lazy\"  decoding=\"async\"  height=\"682\"  width=\"1024\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAABAAAAAKqAQMAAACehL5yAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAGtJREFUeNrtwQEBAAAAgiD\/r25IQAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAC8G1e5AAGKa6yjAAAAAElFTkSuQmCC\"  alt=\"M\u00e5tt\"  class=\"wp-image-10620 pk-lazyload\"  data-pk-sizes=\"auto\"  data-pk-src=\"https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/11\/ready-to-rcoket-to-refurnish-and-reuse-1024x682.jpg\" ><\/figure>\n\n\n\n<h3 id=\"tvastegs-raketmotorer\" class=\"wp-block-heading\">Tv\u00e5stegs raketmotorer<\/h3>\n\n\n\n<p>Falcon 9 har tv\u00e5 steg och anv\u00e4nder nio motorer arrangerade i tre rader om tre i sitt f\u00f6rsteg. Metall Octaweb-strukturen rymmer Merlin-motorerna och \u00e4r avg\u00f6rande f\u00f6r det f\u00f6rsta steget. Placeringen \u00e4r i en orientering med en i mitten och de andra \u00e5tta motorerna runt den.<\/p>\n\n\n\n<p>Det andra steget fungerar med bara en motor som anv\u00e4nder flytande syre. Den beh\u00f6ver ocks\u00e5 reketfotogen f\u00f6r drivmedlen under gasgeneratorns kraftcykel. B\u00e5da motorerna genererar tillsammans 1.7 miljoner pounds dragkraft.<\/p>\n\n\n\n<p>Merlin-motorn \u00e4r byggd internt av SpaceX och inneh\u00e5ller en kombination av raketfotogen som kallas Rocket Propellant 1 och flytande syre. Den \u00e4r otroligt kraftfull och en av de mest effektiva motorerna som n\u00e5gonsin byggts.&nbsp;<\/p>\n\n\n\n<h3 id=\"stegseparation\" class=\"wp-block-heading\">Stegseparation<\/h3>\n\n\n\n<p>Varje flerstegsraket beh\u00f6ver ett mellansteg som ibland \u00e4r sv\u00e5rt att skapa men Falcon 9 gjorde det enklare.  F\u00f6r att separera stegen anv\u00e4nder de flesta raketer ett sofistikerat pyrotekniskt system av exploderande bultar. Medan SpaceX anv\u00e4nder en helt pneumatisk<br>stegseparationsmetod.<\/p>\n\n\n\n<p>Mellansteget&nbsp;kopplar samman&nbsp;f\u00f6rsta och andra stegen. Det andra stegets motor \u00e4r inrymd i mellansteget. Detta s\u00e4krar den under flygningens inledande faser. Stegseparationen sker n\u00e4r tv\u00e5 steg kopplas bort vid r\u00e4tt tidpunkt, vilket g\u00f6r att det andra kan explodera s\u00e4kert.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img  loading=\"lazy\"  decoding=\"async\"  height=\"736\"  width=\"1024\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAABAAAAALgAQMAAAAwR5d4AAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAHJJREFUeNrtwQEBAAAAgiD\/r25IQAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA7wZy7wABOsUUCwAAAABJRU5ErkJggg==\"  alt=\"Varje flerstegsraket beh\u00f6ver ett mellansteg som ibland \u00e4r sv\u00e5rt att skapa men Falcon 9 gjorde det enklare. F\u00f6r att separera stegen anv\u00e4nder de flesta raketer ett sofistikerat pyrotekniskt system av exploderande bultar. Medan SpaceX anv\u00e4nder en helt pneumatisk stegseparationsmetod.\"  class=\"wp-image-10638 pk-lazyload\"  data-pk-sizes=\"auto\"  data-pk-src=\"https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/11\/New-Commercial-Space-Capsule-Orbiting-Planet-Earth.-3D-illustration.-1024x736.jpg\" ><\/figure>\n\n\n\n<p>Falcon 9:s historiska \u00f6gonblick intr\u00e4ffade n\u00e4r rymdfarkosten <a href=\"https:\/\/www.nasa.gov\/press-release\/nasa-astronauts-launch-from-america-in-historic-test-flight-of-spacex-crew-dragon\/\" target=\"_blank\" rel=\"noreferrer noopener\">Crew Dragon gick i omloppsbana<\/a>. En autonom kapsel med ber\u00f6ringsk\u00e4nsliga kontroller f\u00f6r passagerare att anv\u00e4nda under n\u00f6dsituationer. Crew Dragon kan ta med upp till sju personer men reser vanligtvis med fyra.<\/p>\n\n\n\n<h3 id=\"payload\" class=\"wp-block-heading\">Payload<\/h3>\n\n\n\n<p>Falcon 9:s nyttolast \u00e4r gjord av ett kolkompositmaterial som kastas ut cirka 3 minuter in i flygningen. Detta skyddar satelliter p\u00e5 v\u00e4g till omloppsbana. SpaceX forts\u00e4tter att \u00e5terst\u00e4lla k\u00e5pan f\u00f6r \u00e5teranv\u00e4ndning i framtida sessioner.<\/p>\n\n\n\n<h3 id=\"nyttolast\" class=\"wp-block-heading\">Nyttolast<\/h3>\n\n\n\n<p>Att landa \u00e4r det mest sp\u00e4nnande \u00f6gonblicket f\u00f6r raketen. Det f\u00f6rsta stegets landning av Falcon 9 har fyra landningsben av kolfiber. De \u00e4r planvikta mot flygkroppen fram till anv\u00e4ndning. Inbyggda kallgaspropellrar v\u00e4nder raketen f\u00f6r att placera den med motorerna v\u00e4nda fram\u00e5t.<\/p>\n\n\n\n<p>Landningsprocessen sker n\u00e4r raketen g\u00e5r igenom stegseparation. Det f\u00f6rsta steget b\u00f6rjar falla genom atmosf\u00e4ren med en hastighet av 4 700 kilometer i timmen. Kallgaspropellrarna n\u00e4ra toppen v\u00e4nder raketen runt s\u00e5 att den st\u00e5r uppr\u00e4tt. Motorn g\u00e5r ig\u00e5ng, tillr\u00e4ckligt f\u00f6r att bromsa fallet till 20 kilometer i timmen. Sedan f\u00e4lls benen ut och det sista steget sker. Tre av de nio Merlin-motorerna brinner en g\u00e5ng till, vilket kallas &#8221;boostback burn&#8221;.<\/p>\n\n\n\n<h3 id=\"hardvara-och-mjukvara\" class=\"wp-block-heading\">H\u00e5rdvara och mjukvara<\/h3>\n\n\n\n<p>Det f\u00f6rsta steget av raketlandningen \u00e4r helautomatiserat. M\u00e5nga komponenter svarar i realtid n\u00e4r olika f\u00f6rh\u00e5llanden uppst\u00e5r. Dessutom har farkostuppskjutningen ett autonomt flygavslutningssystem. Tack vare datorer \u00e4r det m\u00f6jligt att uppt\u00e4cka en del av riskerna. <\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-red-background-color has-background\" href=\"https:\/\/www.elfa.se\/sv\/automation\/c\/cat-L1D_379516\" target=\"_blank\" rel=\"noreferrer noopener\"><strong> Handla autonoma system<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p>Falcon 9 har <a href=\"https:\/\/www.rankred.com\/what-hardware-software-does-spacex-use-to-power-its-rockets\/\" target=\"_blank\" rel=\"noreferrer noopener\">tre dual-core x86-processorer<\/a> . Den anv\u00e4nder ett &#8221;actor-judge&#8221;-system som st\u00e4rker s\u00e4kerheten genom redundans. Varje beslut analyseras med de andra tv\u00e5 k\u00e4rnorna. Som ett resultat kan systemet \u00e5terstartas om det finns n\u00e5gra oenigheter. Om det matchar, involverar den sista processen att skicka till PowerPC-<a href=\"https:\/\/www.elfa.se\/sv\/halvledare\/inbyggda-processorer-och-styrenheter\/microcontroller-mcu\/c\/cat-L3D_525272\" target=\"_blank\" rel=\"noreferrer noopener\">mikrokontrollrar<\/a> som styr raketens motorer och n\u00e4tbeteende.<\/p>\n\n\n\n<h3 id=\"priser\" class=\"wp-block-heading\">Priser<\/h3>\n\n\n\n<p>Hur mycket kostade Falcon 9? SpaceX erbjuder konkurrenskraftiga <a href=\"https:\/\/www.spacex.com\/media\/Capabilities&amp;Services.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">priser f\u00f6r Falcon 9 s\u00e5v\u00e4l som Falcon Heavy<\/a>. Tillverkaren tillhandah\u00e5ller ocks\u00e5 bes\u00e4ttningstransporttj\u00e4nster till kommersiella kunder. Bra f\u00f6r m\u00e4nniskor som vill transportera astronauter till alternativa LEO-destinationer (Low Earth Orbit).<\/p>\n\n\n\n<h2 id=\"raketens-framtid\" class=\"wp-block-heading\">Raketens framtid<\/h2>\n\n\n\n<p>Folk undrar om Falcon 9 kommer att \u00e5ka till m\u00e5nen? H\u00f6gst sannolikt. Firefly Aerospace har valt detta rymdskepp f\u00f6r f\u00f6retagets f\u00f6rsta <a href=\"https:\/\/spaceflightnow.com\/2021\/05\/26\/firefly-selects-spacex-falcon-9-rocket-to-launch-nasa-chartered-commercial-moon-lander\/\" target=\"_blank\" rel=\"noreferrer noopener\">kommersiella m\u00e5nlandaruppdrag 2023<\/a>. Den kommer att resa med 10 NASA-sponsrade forskningsnyttolaster. <\/p>\n\n\n\n<p>I november 2019 h\u00e4vdade Elon Musk p\u00e5 Twitter att maskinen \u00e4r designad att skjutas upp tre g\u00e5nger om dagen. Detta resulterar i 1000 uppskjutningar per \u00e5r. Vidare planerar Elon Musks f\u00f6r 2050 n\u00e4r det finns planer p\u00e5 att bygga en stad p\u00e5 Mars. Men innan dess, om s\u00e5 lite som fyra \u00e5r, kommer den privata flygindustrin att starta sin f\u00f6rsta obemannade resa till Mars.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Starbase | Gateway to Mars\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/TeVbYCIFVa8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>SpaceX senaste m\u00e5l \u00e4r att fokusera p\u00e5 st\u00f6rre uppdrag som att transportera m\u00e4nniskor och nyttolaster till m\u00e5nen och Mars. Uppskjutningssystemet &#8211; Starship g\u00f6r detta m\u00f6jligt. Och <a href=\"https:\/\/www.space.com\/spacex-starship-sn20-engine-test-epic-photo\" target=\"_blank\" rel=\"noreferrer noopener\">SpaceX testskjutna Starship SN20<\/a> h\u00e4nde just den 12 november 2021.<\/p>\n","protected":false},"excerpt":{"rendered":"Vad \u00e4r framtiden f\u00f6r rymdf\u00e4rder? Kommer civila att resa fritt ut i rymden och ha m\u00f6jlighet att flytta&hellip;\n","protected":false},"author":16,"featured_media":10656,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_appearance_grid":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[239,250],"tags":[],"coauthors":[],"class_list":{"0":"post-10714","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-forsvar-flyg-och-marin","8":"category-transport-sv","9":"cs-entry","10":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hur byggdes den \u00e5teranv\u00e4ndbara raketen SpaceX Falcon 9? 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