{"id":7433,"date":"2022-05-04T09:44:14","date_gmt":"2022-05-04T07:44:14","guid":{"rendered":"https:\/\/www.bochumer-verein.de\/?p=7433"},"modified":"2023-10-11T10:01:30","modified_gmt":"2023-10-11T08:01:30","slug":"besonders-leise-unsere-gummigefederten-aluminium-hybridraeder","status":"publish","type":"post","link":"https:\/\/www.bochumer-verein.de\/en\/besonders-leise-unsere-gummigefederten-aluminium-hybridraeder\/","title":{"rendered":"Especially quiet our ultralight resilient wheel with aluminum rim"},"content":{"rendered":"<h4>Acoustic measurements could confirm that our aluminum wheels are not only equal to, but quieter than conventional steel wheels.<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7650 alignleft\" src=\"https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-300x300.jpg 300w, https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-150x150.jpg 150w, https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-100x100.jpg 100w, https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-140x140.jpg 140w, https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-500x500.jpg 500w, https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822-350x350.jpg 350w, https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/Rad-e1653465878822.jpg 682w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>In 2019 and 2021, Verkehrsgesellschaft Frankfurt commissioned FCP IBU GmbH to carry out two measurement campaigns with comparative acoustic measurements at different passing speeds.<br \/>\nConventional steel wheels and the BVV aluminum hybrid wheels were tested.<br \/>\nThe measurements showed that the resilient hybrid wheels generate a lower noise level than the steel LRV wheels.<\/p>\n<p>Aluminum has different properties than steel and therefore requires a more solid disc wheel body design.<br \/>\nThe bridge of an aluminum disc wheel body is thicker, resulting in higher stiffness and lower vibration amplitude in the acoustic range.<br \/>\nThis also results in less deformation of the disc wheel body than the steel disc wheel body.<br \/>\nAdded to this are weight savings of up to 70 kg per wheel, resulting in lower energy consumption.<\/p>\n<p><a href=\"https:\/\/www.bochumer-verein.de\/wp-content\/uploads\/2022\/05\/EN__report_DAGA.pdf\">Read the full report (in english) given at the 2022 Annual Meeting on Acoustics here. (this text is a translation of the DAGA 2022 Stuttgart manuscript)<\/a><\/p>\n<p><a href=\"https:\/\/www.daga2022.de\/\">Hinweis Manuskript (daga2022.de)<\/a>","protected":false},"excerpt":{"rendered":"<p>Acoustic measurements could confirm that our aluminum wheels are not only equal to, but quieter than conventional steel wheels. In 2019 and 2021, Verkehrsgesellschaft Frankfurt commissioned FCP IBU GmbH to&#8230;<\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-7433","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-allgemein"},"_links":{"self":[{"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/posts\/7433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/comments?post=7433"}],"version-history":[{"count":24,"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/posts\/7433\/revisions"}],"predecessor-version":[{"id":7652,"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/posts\/7433\/revisions\/7652"}],"wp:attachment":[{"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/media?parent=7433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/categories?post=7433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bochumer-verein.de\/en\/wp-json\/wp\/v2\/tags?post=7433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}