{"id":1666,"date":"2022-11-07T10:19:50","date_gmt":"2022-11-07T09:19:50","guid":{"rendered":"https:\/\/konnekt.no\/?post_type=assignment&#038;p=1666"},"modified":"2024-06-06T08:05:16","modified_gmt":"2024-06-06T06:05:16","slug":"hjul-skinne-kontaktmekanikk","status":"publish","type":"assignment","link":"https:\/\/www.jernbanedirektoratet.no\/konnekt\/studentoppgaver\/hjul-skinne-kontaktmekanikk\/","title":{"rendered":"Hjul &#8211; skinne kontaktmekanikk"},"content":{"rendered":"<h1 class=\"wp-block-post-title\">Hjul &#8211; skinne kontaktmekanikk<\/h1>\n\n<p class=\"t2-ingress is-style-intro-content wp-block-t2-ingress\">Beregningsmodeller og vurderingsmodeller (Shakedown og Ty metoden).<\/p>\n\n\n<p>Dette dreier seg om kontaktutmattingsskader p\u00e5 skinner som oppst\u00e5r p\u00e5 grunn av h\u00f8ye kontaktspenninger mellom hjul og skinne. Denne feiltypen er et stadig \u00f8kende problem, b\u00e5de i Europa og her i Norge. At vi ser denne \u00f8kningen har sammenheng med \u00f8kende trafikkmengde og hastighet, men sannsynligvis ogs\u00e5 nye togtyper med h\u00f8yere aksellast og traksjonskrefter. Her kan det v\u00e6re aktuelt \u00e5 se p\u00e5 hvordan hjulkrefter og kontaktgeometri for norske tog og spor p\u00e5virker kontaktspenninger og skademekanisme.<\/p>\n\n\n\n<p>Du kan lese mer om <a href=\"https:\/\/uic.org\/research\/international-railway-research-board-irrb\/\" target=\"_blank\" rel=\"noreferrer noopener\">problemstillingen i denne artikkelen fra UIC<\/a>.<\/p>\n\n\n\n<p>Passer for masteroppgave.<\/p>\n\n\n\n\t\t<div class=\"t2-factbox wp-block-t2-factbox\" id=\"t2-factbox\">\n\t\t\t<div class=\"t2-factbox__content\">\n\t\t\t\t<div class=\"t2-factbox__blocks t2-factbox__inner-container\">\n\t\t\t\t\t\n\n<h3 class=\"wp-block-heading\" id=\"h-kontaktperson\">Kontaktperson<\/h3>\n\n\n\n<p><strong>Frode Teigen:<\/strong> Bane NOR, <a href=\"mailto:ft@banenor.no\">ft@banenor.no<\/a><\/p>\n\n\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\n\n<p><a href=\"https:\/\/www.jernbanekompetanse.no\/wiki\/Studentoppgaver\">Se flere oppgaver fra Bane NOR<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-lignende-oppgaver\">Lignende oppgaver<\/h2>\n\n\n<div class=\"t2-featured-content-layout alignwide alignwide wp-block-t2-featured-content-layout\">\n<div class=\"t2-featured-single-post t2-featured-content is-post-type-assignment assignment-category-miljo assignment-category-samfunnsokonomi-og-planlegging assignment-category-teknologi assignment-category-trafikkanalyse assignment-submitter-statens-vegvesen wp-block-t2-featured-single-post\"><a class=\"t2-post-link wp-block-t2-post-link\" href=\"https:\/\/www.jernbanedirektoratet.no\/konnekt\/studentoppgaver\/ny-teknologi-pa-vegen-og-klimasarbarhet\/\">\n<figure style=\"--t2-focal-point: 50% 50%;\" class=\"t2-post-featured-image has-image-ratio-16-9 wp-block-t2-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/www.jernbanedirektoratet.no\/content\/uploads\/sites\/3\/2022\/12\/microsoftteams-image-1-3401033-1920.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" srcset=\"https:\/\/www.jernbanedirektoratet.no\/content\/uploads\/sites\/3\/2022\/12\/microsoftteams-image-1-3401033-1920.jpg 1920w, https:\/\/www.jernbanedirektoratet.no\/content\/uploads\/sites\/3\/2022\/12\/microsoftteams-image-1-3401033-1920-300x169.jpg 300w, https:\/\/www.jernbanedirektoratet.no\/content\/uploads\/sites\/3\/2022\/12\/microsoftteams-image-1-3401033-1920-1024x576.jpg 1024w, https:\/\/www.jernbanedirektoratet.no\/content\/uploads\/sites\/3\/2022\/12\/microsoftteams-image-1-3401033-1920-768x432.jpg 768w, https:\/\/www.jernbanedirektoratet.no\/content\/uploads\/sites\/3\/2022\/12\/microsoftteams-image-1-3401033-1920-1536x864.jpg 1536w\" sizes=\"auto, (min-width: 1200px) 378px, (min-width: 700px) 33vw, 300px\" \/><\/figure>\n\n\n\t\t<div class=\"t2-post-link-content wp-block-t2-wrapper\">\n<h3 class=\"t2-post-title wp-block-t2-post-title\">Ny teknologi p\u00e5 vegen og klimas\u00e5rbarhet<\/h3>\n\n<\/div>\n\n<\/a>\n<\/div>\n\n<div class=\"t2-featured-single-post t2-featured-content is-post-type-assignment assignment-category-jernbane assignment-category-konstruksjon assignment-category-sikkerhet assignment-submitter-bane-nor wp-block-t2-featured-single-post\"><a class=\"t2-post-link wp-block-t2-post-link\" href=\"https:\/\/www.jernbanedirektoratet.no\/konnekt\/studentoppgaver\/redningsarbeid-i-tunneler\/\">\n<figure class=\"t2-post-featured-image has-image-ratio-16-9 wp-block-t2-post-featured-image\"><img decoding=\"async\" src=\"\" alt=\"\" loading=\"lazy\" \/><\/figure>\n\n\n\t\t<div class=\"t2-post-link-content wp-block-t2-wrapper\">\n<h3 class=\"t2-post-title wp-block-t2-post-title\">Redningsarbeid i tunneler<\/h3>\n\n<\/div>\n\n<\/a>\n<\/div>\n\n<div class=\"t2-featured-single-post t2-featured-content is-post-type-assignment assignment-category-jernbane assignment-category-konstruksjon assignment-category-vedlikehold assignment-submitter-bane-nor wp-block-t2-featured-single-post\"><a class=\"t2-post-link wp-block-t2-post-link\" href=\"https:\/\/www.jernbanedirektoratet.no\/konnekt\/studentoppgaver\/feltmalinger-og-numerisk-simulering-av-forlop-av-lufttemperatur-i-jernbanetunneler\/\">\n<figure class=\"t2-post-featured-image has-image-ratio-16-9 wp-block-t2-post-featured-image\"><img decoding=\"async\" src=\"\" alt=\"\" loading=\"lazy\" \/><\/figure>\n\n\n\t\t<div class=\"t2-post-link-content wp-block-t2-wrapper\">\n<h3 class=\"t2-post-title wp-block-t2-post-title\">Feltm\u00e5linger og numerisk simulering av forl\u00f8p av lufttemperatur i jernbanetunneler<\/h3>\n\n<\/div>\n\n<\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":14,"featured_media":1667,"template":"","meta":{"post_sublanguage":"","footnotes":""},"assignment-category":[77,86],"assignment-submitter":[93],"assignment-grade":[],"class_list":["post-1666","assignment","type-assignment","status-publish","has-post-thumbnail","hentry","assignment-category-jernbane","assignment-category-teknologi","assignment-submitter-bane-nor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.3 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hjul - skinne kontaktmekanikk - Konnekt<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jernbanedirektoratet.no\/konnekt\/studentoppgaver\/hjul-skinne-kontaktmekanikk\/\" \/>\n<meta property=\"og:locale\" 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