{"id":4362,"date":"2021-04-07T11:52:31","date_gmt":"2021-04-07T11:52:31","guid":{"rendered":"https:\/\/samotics.com\/?p=4362"},"modified":"2025-10-01T13:25:09","modified_gmt":"2025-10-01T11:25:09","slug":"case-study-steel-runout-table-cardan-shaft-coupling","status":"publish","type":"post","link":"https:\/\/samotics.com\/pt\/case-studies\/case-study-steel-runout-table-cardan-shaft-coupling","title":{"rendered":"Alerta precoce de falha no acoplamento do eixo cardan no rolo da mesa de excentricidade"},"content":{"rendered":"<div class=\"pageheader__content\">\n<p class=\"pageheader__intro text--l\">Leia como a SAM4 detectou uma falha no acoplamento do eixo cardan num rolo de mesa de runout para este fabricante de a\u00e7o.<\/p>\n<section id=\"io-key-0\" class=\"block block--text block--wysiwyg bg--primary container--m gutter--m block--inview\">\n<div class=\"block__inner\">\n<div class=\"block__content\">\n<div class=\"block__text text--styled\">\n<h2><strong>Modo de falha<\/strong><\/h2>\n<p>Folga causada por um acoplamento do veio cardan fatigado.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"io-key-0\" class=\"block block--text block--wysiwyg bg--primary bg--primary container--m gutter--m\">\n<div class=\"block__inner\">\n<div class=\"block__content\">\n<div class=\"block__text text--styled\">\n<h2><strong>Como a SAM4 ajudou<\/strong><\/h2>\n<p>O SAM4 assinalou um pico s\u00fabito na primeira inter-harm\u00f3nica de corrente em todos os pontos de funcionamento do rolo. V\u00e1rios eventos com a mesma assinatura tinham sido diagnosticados anteriormente neste e noutros rolos deste cliente, pelo que t\u00ednhamos quase a certeza de que se tratava de um acoplamento defeituoso. Notific\u00e1mos o cliente e coloc\u00e1mos o ativo em alerta vermelho. Uma semana depois, o cliente efectuou a manuten\u00e7\u00e3o, mas os valores inter-harm\u00f3nicos continuaram elevados. O cliente explicou que n\u00e3o tinha tido tempo para substituir o acoplamento durante o per\u00edodo planeado. Dois dias depois, o acoplamento foi substitu\u00eddo e a assinatura el\u00e9ctrica do rolo voltou ao normal.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"io-key-0\" class=\"block block--text block--wysiwyg bg--primary bg--primary container--m gutter--m\">\n<div class=\"block__inner\">\n<div class=\"block__content\">\n<div class=\"block__text text--styled\">\n<h2><strong>Resultado<\/strong><\/h2>\n<p>\"A SAM4 detectou antecipadamente todas as falhas nestes acoplamentos espec\u00edficos e nunca assinalou uma que n\u00e3o existisse. Consideramos as notifica\u00e7\u00f5es do Samotics como uma fonte de confian\u00e7a e agimos em conformidade.\"<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_4371\" aria-describedby=\"caption-attachment-4371\" style=\"width: 550px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-4371\" src=\"https:\/\/samotics.com\/wp-content\/uploads\/2021\/04\/210407-case-study-fig-1_1400w.png\" alt=\"\" width=\"550\" height=\"271\" title=\"\" srcset=\"https:\/\/samotics.com\/wp-content\/uploads\/2021\/04\/210407-case-study-fig-1_1400w.png 1400w, https:\/\/samotics.com\/wp-content\/uploads\/2021\/04\/210407-case-study-fig-1_1400w-300x148.png 300w, https:\/\/samotics.com\/wp-content\/uploads\/2021\/04\/210407-case-study-fig-1_1400w-1024x505.png 1024w, https:\/\/samotics.com\/wp-content\/uploads\/2021\/04\/210407-case-study-fig-1_1400w-768x379.png 768w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><figcaption id=\"caption-attachment-4371\" class=\"wp-caption-text\">Valores ao longo do tempo para o primeiro indicador inter-harm\u00f3nico de corrente. Cada cor representa um ponto de funcionamento diferente. O gr\u00e1fico mostra um pico de intensidade em todos eles (seta vermelha). As duas setas pretas indicam falhas de acoplamento anteriores neste mesmo rolo, ambas detectadas pelo SAM4 antes da falha.<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_4366\" aria-describedby=\"caption-attachment-4366\" style=\"width: 550px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-4366\" src=\"https:\/\/samotics.com\/wp-content\/uploads\/2023\/10\/210407-case-study-fig-2_1400w.jpg\" alt=\"\" width=\"550\" height=\"433\" title=\"\" srcset=\"https:\/\/samotics.com\/wp-content\/uploads\/2023\/10\/210407-case-study-fig-2_1400w.jpg 800w, https:\/\/samotics.com\/wp-content\/uploads\/2023\/10\/210407-case-study-fig-2_1400w-300x236.jpg 300w, https:\/\/samotics.com\/wp-content\/uploads\/2023\/10\/210407-case-study-fig-2_1400w-768x605.jpg 768w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><figcaption id=\"caption-attachment-4366\" class=\"wp-caption-text\">Um mapa de calor que mostra a intensidade ao longo do tempo no espetro de frequ\u00eancia atual (azul \u00e9 baixo, vermelho \u00e9 alto). O tempo desce no eixo vertical do mais antigo para o mais recente. As setas marcam as tr\u00eas detec\u00e7\u00f5es de acoplamento. Todas as tr\u00eas mostram um claro aumento do n\u00edvel de ru\u00eddo (inter-harm\u00f3nicos).<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Read how SAM4 caught a failing cardan shaft coupling in a runout table roll for this steel manufacturer. Failure mode Looseness caused by a fatigued cardan shaft coupling. How SAM4 helped SAM4 flagged a sudden spike in the first current interharmonic at all the roller\u2019s operating points. Several events with the same signature had been [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3438,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[6],"tags":[],"coauthors":[22],"class_list":["post-4362","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-studies"],"modified_by":null,"_links":{"self":[{"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/posts\/4362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/comments?post=4362"}],"version-history":[{"count":3,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/posts\/4362\/revisions"}],"predecessor-version":[{"id":4372,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/posts\/4362\/revisions\/4372"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/media\/3438"}],"wp:attachment":[{"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/media?parent=4362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/categories?post=4362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/tags?post=4362"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/samotics.com\/pt\/wp-json\/wp\/v2\/coauthors?post=4362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}