{"id":142487,"date":"2022-11-29T03:28:58","date_gmt":"2022-11-29T03:28:58","guid":{"rendered":"https:\/\/harchi90.com\/indycar-to-introduce-new-attenuator-in-2023\/"},"modified":"2022-11-29T03:28:58","modified_gmt":"2022-11-29T03:28:58","slug":"indycar-to-introduce-new-attenuator-in-2023","status":"publish","type":"post","link":"https:\/\/harchi90.com\/indycar-to-introduce-new-attenuator-in-2023\/","title":{"rendered":"IndyCar to introduce new attenuator in 2023"},"content":{"rendered":"<div itemprop=\"articleBody\">\n<p>The NTT IndyCar Series has a new rear attenuator in the works that will be implemented heading into 2023.<\/p>\n<p>Together, IndyCar and its official chassis supplier Dallara have developed a redesigned unit that has been commissioned to improve crushability and further reduce the forces transmitted into the cockpit in rearward impacts.<\/p>\n<p>\u201cOur current attenuator has evolved slightly over time, so when I joined IndyCar, the original DW12 attenuator became the source of development after a few drivers complained of having headaches after backing the car into the wall on street courses,\u201d IndyCar director of aerodynamic development and veteran chassis designer Tino Belli told RACER.<\/p>\n<div id=\"attachment_313436\" class=\"wp-caption alignnone\"><noscript><img aria-describedby=\"caption-attachment-313436\" loading=\"lazy\" class=\"wp-image-313436 size-full\" src=\"https:\/\/i0.wp.com\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/New-Attenuator.jpg?resize=800%2C492&#038;ssl=1\" alt=\"\" width=\"800\" height=\"492\" srcset=\"https:\/\/i0.wp.com\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/New-Attenuator.jpg?resize=800%2C492&#038;ssl=1 800w, https:\/\/i0.wp.com\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/New-Attenuator.jpg?resize=800%2C492&#038;ssl=1?resize=150,92 150w, https:\/\/i0.wp.com\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/New-Attenuator.jpg?resize=800%2C492&#038;ssl=1?resize=300,185 300w, https:\/\/i0.wp.com\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/New-Attenuator.jpg?resize=800%2C492&#038;ssl=1?resize=768,472 768w, https:\/\/i0.wp.com\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/New-Attenuator.jpg?resize=800%2C492&#038;ssl=1?resize=480,295 480w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-recalc-dims=\"1\"\/><\/noscript><\/p>\n<p id=\"caption-attachment-313436\" class=\"wp-caption-text\">Image via IndyCar\/Dallara<\/p>\n<\/div>\n<p>\u201cSo the steps taken on the old attenuator were to change the backface, which was originally solid and all molded in.  We cut that backface out to allow it to be more tubular rather than a closed end, to aid in its crushing.  And then we thinned this section out and basically went from a core with two skins to having one skin so that on a rearward impact, the attenuator had some softness before it started really crushing and taking out a lot of energy.<\/p>\n<p>\u201cThat&#8217;s been successful in removing the street course headaches.  But we&#8217;ve wanted to make it even more progressive and the plan was to introduce a new attenuator with the 2.4 HY [engine package in 2024].  But we&#8217;ve brought it forward.\u201d<\/p>\n<p>Rather than wait for the new 2.4-liter twin-turbo hybrid V6 formula change, IndyCar will spend 2023 learning how the revised attenuator, which is made from the same composites used to form an IndyCar chassis, performs and if any additional changes are needed, it will have time to make those design adjustments prior to 2024.<\/p>\n<p>\u201cThe key thing about the new attenuator is, it&#8217;s longer and the shape has changed,\u201d Belli said.  \u201cThe ability to model these layouts in FEA (finite element analysis software) is a lot better now, and from that, you will see that we don&#8217;t have the flat top and bottom anymore.  This new profile helps the attenuator retain its shape while it&#8217;s being crushed in a rearward impact, and that allows it to crush in a much more predictable way.<\/p>\n<p>\u201cThe whole idea here, because it&#8217;s longer, is to use the extra distance to reduce the peak Gs and the average G in a rearward impact, to better slow and soften the hit.  It is also lighter.  Even though it&#8217;s longer and bigger, it&#8217;s lighter.  And all of the wing mounts are exactly the same with the same bracketry.\u201d<\/p>\n<p>Larger, stronger mounting studs will also be introduced in an effort to hold the attenuator onto the back of the transmission when a driver hits a wall at an angle from behind.  The last new item to complement the revised attenuator is a larger rain light.<\/p>\n<p>\u201cWhen it&#8217;s raining, we&#8217;re trying to make it easier for the driver to see through the aeroscreen,\u201d Belli said.  \u201cIf we can create more light, there&#8217;s more chance of them being able to see the car in front, so we&#8217;ve gone to a bigger rain light than we currently have.  And for 2024, we will probably have rain lights in the rear wing endplates as well.\u201d<\/p>\n<\/p><\/div>\n<p>    .<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The NTT IndyCar Series has a new rear attenuator in the works that will be implemented heading into 2023. Together, IndyCar and its official chassis supplier Dallara have developed a redesigned unit that has been commissioned to improve crushability and further reduce the forces transmitted into the cockpit in rearward impacts. \u201cOur current attenuator has &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/harchi90.com\/indycar-to-introduce-new-attenuator-in-2023\/\"> <span class=\"screen-reader-text\">IndyCar to introduce new attenuator in 2023<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[4],"tags":[2965],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.10 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>IndyCar to introduce new attenuator in 2023 - harchi90<\/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:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IndyCar to introduce new attenuator in 2023 - harchi90\" \/>\n<meta property=\"og:description\" content=\"The NTT IndyCar Series has a new rear attenuator in the works that will be implemented heading into 2023. Together, IndyCar and its official chassis supplier Dallara have developed a redesigned unit that has been commissioned to improve crushability and further reduce the forces transmitted into the cockpit in rearward impacts. \u201cOur current attenuator has &hellip; IndyCar to introduce new attenuator in 2023 Read More &raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5\" \/>\n<meta property=\"og:site_name\" content=\"harchi90\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-29T03:28:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/1019349744-LAT-20220911-GALSTAD-WRLS-0922-2962151.jpg?w=1000&h=576&crop=1\" \/>\n<meta name=\"author\" content=\"islamlacoste58\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/racer.com\/wp-content\/uploads\/sites\/85\/2022\/11\/1019349744-LAT-20220911-GALSTAD-WRLS-0922-2962151.jpg?w=1000&h=576&crop=1\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"islamlacoste58\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/harchi90.com\/indycar-to-introduce-new-attenuator-in-2023\/\",\"url\":\"https:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5\",\"name\":\"IndyCar to introduce new attenuator in 2023 - harchi90\",\"isPartOf\":{\"@id\":\"https:\/\/harchi90.com\/#website\"},\"datePublished\":\"2022-11-29T03:28:58+00:00\",\"dateModified\":\"2022-11-29T03:28:58+00:00\",\"author\":{\"@id\":\"https:\/\/harchi90.com\/#\/schema\/person\/0689156e87fbe869f0e5efdeef200d5b\"},\"breadcrumb\":{\"@id\":\"https:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/harchi90.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"IndyCar to introduce new attenuator in 2023\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/harchi90.com\/#website\",\"url\":\"https:\/\/harchi90.com\/\",\"name\":\"harchi90\",\"description\":\"Just another WordPress site\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/harchi90.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/harchi90.com\/#\/schema\/person\/0689156e87fbe869f0e5efdeef200d5b\",\"name\":\"islamlacoste58\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/harchi90.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/5bf7491076e3822b8e0de7b1f9364d75?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/5bf7491076e3822b8e0de7b1f9364d75?s=96&d=mm&r=g\",\"caption\":\"islamlacoste58\"},\"sameAs\":[\"http:\/\/harchi90.com\"],\"url\":\"https:\/\/harchi90.com\/author\/islamlacoste58\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"IndyCar to introduce new attenuator in 2023 - harchi90","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/news.google.com\/__i\/rss\/rd\/articles\/CBMiSWh0dHBzOi8vcmFjZXIuY29tLzIwMjIvMTEvMjgvaW5keWNhci10by1pbnRyb2R1Y2UtbmV3LWF0dGVudWF0b3ItaW4tMjAyMy_SAQA?oc=5","og_locale":"en_US","og_type":"article","og_title":"IndyCar to introduce new attenuator in 2023 - harchi90","og_description":"The NTT IndyCar Series has a new rear attenuator in the works that will be implemented heading into 2023. 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