{"id":7651,"date":"2014-05-14T00:23:14","date_gmt":"2014-05-13T22:23:14","guid":{"rendered":"http:\/\/mixmotor.eu\/?p=7651"},"modified":"2014-05-14T00:30:25","modified_gmt":"2014-05-13T22:30:25","slug":"audi-r18-e-tron-quattro-ma-rychlejsiu-dvojicku","status":"publish","type":"post","link":"https:\/\/mixmotor.eu\/en\/7651\/audi-r18-e-tron-quattro-ma-rychlejsiu-dvojicku","title":{"rendered":"Audi R18 e-tron quattro m\u00e1 r\u00fdchlej\u0161iu dvoji\u010dku"},"content":{"rendered":"

Aerodynamika ako jeden z hlavn\u00fdch faktorov efektivity v roku 2014 m\u00e1 u Audi R18 e-tron quattro naviac od konkurencie. Vedeli ste v\u0161ak, \u017ee s\u00fa dva modely?<\/p>\n

Audi R18 e-tron quattro je v triede LMP1 vytrvalostn\u00fdch pretekov naj\u0161etrnej\u0161\u00edm autom z h\u013eadiska spotreby (a \u010d\u00edm menej tankovania, t\u00fdm viac kr\u00e1t obehn\u00fa protivn\u00edkov). Dodato\u010dne v\u0161ak spotrebe hr\u00e1 do kar\u00e1t hlavne aerodynamika. Audi R18 e-tron quattro\u00a0ako ju pozn\u00e1me dnes je fin\u00e1lnym modelom pre tento rok.\u00a0Na \u0161tarte druh\u00fdch vytrvalostn\u00fdch pretekov tohto roku na trati Spa v Belgicku sa ale objavil aj druh\u00fd variant karos\u00e9rie auta. T\u00e1 kladie men\u0161\u00ed odpor obtekaj\u00facemu vzduchu v najvy\u0161\u0161\u00edch r\u00fdchlostiach, ak\u00e9 sa dosahuj\u00fa hlavne na legend\u00e1rnej trati v\u00a0Le Mans.<\/p>\n

Aerodynamick\u00fd z\u00e1klad malo auto u\u017e v lete 2012. Vtedy (a pod\u013ea v\u0161etk\u00e9ho sa to v priebehu p\u00e1r rokov nebude meni\u0165) sa vych\u00e1dzalo z dan\u00fdch “podmienok”, ktor\u00fdch sa museli v\u00fdpo\u010dt\u00e1ri aerodynamiky\u00a0dr\u017ea\u0165: koncept motora, r\u00e1zvor a n\u00e1\u010drt auta.
\nAerodynamick\u00e9 v\u00fdpo\u010dty patria k jedn\u00fdm z najzlo\u017eitej\u0161\u00edch (dokonca aj pre po\u010d\u00edta\u010de), najzd\u013ahavej\u0161\u00edch (st\u00e1le aj pre po\u010d\u00edta\u010de) a najd\u00f4le\u017eitej\u0161\u00edch pri pretek\u00e1rskych aut\u00e1ch. Computational Fluid Dynamics (CFD) je n\u00e1zov tejto v\u00fdpo\u010dtovej discipl\u00edny, po slovensky mechanika pr\u00fadenia.
\nK\u00fasok po k\u00fasku menia kon\u0161trukt\u00e9ri r\u00f4zne prvky na aute a\u00a0sp\u00e4tne\/navz\u00e1jom\u00a0porovn\u00e1vaj\u00fa v\u00fdsledn\u00e9 d\u00e1ta z meran\u00ed a v\u00fdpo\u010dtov. Ciel je jasn\u00fd,\u00a0dosiahnu\u0165 \u010do najni\u017e\u0161\u00ed deficit. (Len tak medzi re\u010dou, na Slovensku ani nie je \u0161kola, ktor\u00e1 by sa venovala takejto s\u00fa\u0165a\u017enej aerodynamike, t\u00e1 sa d\u00e1 \u0161tudova\u0165 vo Franc\u00fazsku po p\u00e1r rokoch \u0161t\u00fadia “jednoduch\u0161\u00edch” v\u00fdpo\u010dtov.)<\/p>\n

Na trati Le Mans dosahuj\u00fa Audi R18 e-tron quattro priemern\u00fa r\u00fdchlos\u0165 a\u017e 242km\/h, \u010do je vysok\u00e9 \u010d\u00edslo vzh\u013eadom na to, ko\u013eko z\u00e1krut na trati je. Pr\u00e1ve preto m\u00e1 Audi pripraven\u00e9 dve varianty karos\u00e9rii. Jedna, ktor\u00e1 kladie men\u0161\u00ed odpor vzduchu v Le Mans a druh\u00fd variant pon\u00faka potrebn\u00fd v\u00e4\u010d\u0161\u00ed odpor vzduchu na zvy\u0161n\u00fdch pomal\u0161\u00edch siedmich tratiach s\u00e9rie vytrvalostn\u00fdch pretekov WEC.<\/p>\n

Variant Le Mans<\/strong> m\u00e1 zmenen\u00fa predn\u00fa \u010das\u0165, kde odpadaj\u00fa zmenen\u00e9 okrajov\u00e9 kr\u00eddelk\u00e1,\u00a0otvory\u00a0nad kolesami a n\u00e1behy na kokpit okolo stredov\u00e9ho nosu. <\/em><\/p>\n

\"audi_motorsport-140507-2751LeMans\"<\/a>
\n\"audi_motorsport-140507-2751WEC\"<\/a><\/p>\n

 <\/p>\n

Karos\u00e9ria je pred\u013a\u017een\u00e1 a\u017e po koniec zadn\u00e9ho kr\u00eddla a to na celkov\u00fa d\u013a\u017eku 4.650mm (druh\u00fd variant je krat\u0161\u00ed)\u00a0. Plus je zmenen\u00fd tvar\u00a0zadn\u00e9ho vodorovn\u00e9ho kr\u00eddla, vr\u00e1tane jeho polohy.<\/em><\/p>\n

\"audi_motorsport-140507-2757LeMans\"<\/a>
\n\"audi_motorsport-140507-2758WEC\"<\/a><\/p>\n

 <\/p>\n

V\u00fdfukov\u00e9 r\u00fary vystupuj\u00fa za karos\u00e9riu ponad spodn\u00fd dif\u00fazor\u00a0a nie\u00a0rovno zo stredu\u00a0 zvisl\u00e9ho kr\u00eddla\u00a0vpravo a v\u013eavo.<\/em><\/p>\n

\"audi_motorsport-140507-2755LeMans\"<\/a> \"WEC<\/a>\u00a0\u00a0 \"audi_motorsport-140325-1029WEC\"<\/a><\/p>\n

Probl\u00e9m nie ja v\u0161ak za\u017eehnan\u00fd v\u00fdpo\u010dtami. Aut\u00e1 nem\u00f4\u017eu prekro\u010di\u0165 ur\u010dit\u00e9 hodnoty koeficientu odporu vzduchu\u00a0 dan\u00e9 pravidlami pretekov. Pri prejazdoch z\u00e1krutami v\u0161ak treba \u010do najvy\u0161\u0161ie koeficienty odporu vzduchu pre vytvorenie dostato\u010dn\u00e9ho pr\u00edtlaku na auto. Je to ve\u013emi zlo\u017eit\u00e1 hra s ka\u017ed\u00fdm dielom.<\/p>\n

Na trati\u00a0v\u00a0Spa jazdili paralelne obe varianty Audi R18 e-tron quattro. Le Mans verzia mala \u010d\u00edslo 3 a podarilo sa jej neprekro\u010di\u0165 povolen\u00e9 hodnoty odporu vzduchu a z\u00e1rove\u0148 sa Audi podarilo dosiahnu\u0165 dostato\u010dn\u00e9 hodnoty pr\u00edtlaku vzduchom.<\/p>\n

Autor+ vyzna\u010dovanie zmien: Vladislav Baniari; Zdroj+foto: Audi Motorsport<\/p>\n","protected":false},"excerpt":{"rendered":"

Aerodynamika ako jeden z hlavn\u00fdch faktorov efektivity v roku 2014 m\u00e1 u Audi R18 e-tron quattro naviac od konkurencie. Vedeli ste v\u0161ak, \u017ee s\u00fa dva modely?<\/p>\n","protected":false},"author":1,"featured_media":7663,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[7,9,4],"tags":[698,697,103,700,699,185,150,186,701],"class_list":["post-7651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sutaze","category-audi","category-dokumentarne","tag-aerodynamics","tag-aerodynamika","tag-audi-2","tag-cfd","tag-computation-fluid-dynamics","tag-e-tron","tag-quattro","tag-r18","tag-wec"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"en","enabled_languages":["sk","en","de"],"languages":{"sk":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/7651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/comments?post=7651"}],"version-history":[{"count":8,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/7651\/revisions"}],"predecessor-version":[{"id":7667,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/7651\/revisions\/7667"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media\/7663"}],"wp:attachment":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media?parent=7651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/categories?post=7651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/tags?post=7651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}