sur le site officiel<\/a>.<\/p>\n <\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fullwidth=\u00a0\u00bboff\u00a0\u00bb specialty=\u00a0\u00bboff\u00a0\u00bb][et_pb_row][et_pb_column type=\u00a0\u00bb4_4″][et_pb_divider admin_label=\u00a0\u00bbS\u00e9parateur\u00a0\u00bb color=\u00a0\u00bb#c4c4c4″ show_divider=\u00a0\u00bbon\u00a0\u00bb divider_style=\u00a0\u00bbsolid\u00a0\u00bb divider_position=\u00a0\u00bbtop\u00a0\u00bb hide_on_mobile=\u00a0\u00bbon\u00a0\u00bb] [\/et_pb_divider][et_pb_code admin_label=\u00a0\u00bbCode\u00a0\u00bb] Guillaume, ing\u00e9nieur Calculs [\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
[et_pb_section][et_pb_row][et_pb_column type="4_4"][et_pb_post_title admin_label="Titre du poste" title="on" meta="on" author="on" date="on" categories="on" comments="off" featured_image="off" featured_placement="below" parallax_effect="on" parallax_method="on" text_orientation="left" text_color="dark" text_background="off" text_bg_color="rgba(255,255,255,0.9)" module_bg_color="rgba(255,255,255,0)" title_all_caps="off" use_border_color="off" border_color="#ffffff" border_style="solid"] [\/et_pb_post_title][\/et_pb_column][\/et_pb_row][et_pb_row][et_pb_column type="4_4"][et_pb_image admin_label="Image" src="https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-content\/uploads\/2018\/05\/syst%C3%A8me-de-serrage.jpg" show_in_lightbox="off" url_new_window="off" animation="left" sticky="off" align="left" force_fullwidth="off" always_center_on_mobile="on" use_border_color="off" border_color="#ffffff" border_style="solid"] [\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row][et_pb_column type="4_4"][et_pb_text admin_label="Texte" background_layout="light" text_orientation="left" use_border_color="off" border_color="#ffffff" border_style="solid"] Qu\u2019est-ce que la technologie Superbolt ? \u00a0 Le syst\u00e8me de serrage Superbolt consiste en un tensionneur \u00e0 vis multiples. Ce dernier est compos\u00e9 d\u2019une rondelle de pression, d\u2019un corps d\u2019\u00e9crou qui se visse sur le goujon et de Jackbolts, les vis de pression. [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row][et_pb_column type="4_4"][et_pb_image admin_label="Image" src="https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-content\/uploads\/2018\/05\/syst%C3%A8me-de-serrage2.jpg" title_text="\u00a9 By P&S Vorspannsysteme AG (Marketing P&S Vorspannsysteme AG) via Wikimedia Commons" show_in_lightbox="off" url_new_window="off" animation="left" sticky="off" align="left" force_fullwidth="off" always_center_on_mobile="on" use_border_color="off" border_color="#ffffff" border_style="solid"] [\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row][et_pb_column type="4_4"][et_pb_text admin_label="Texte" background_layout="light" text_orientation="left" use_border_color="off" border_color="#ffffff" border_style="solid"] Les tensionneurs \u00e0 vis multiples apportent plusieurs avantages potentiels par rapport aux autres m\u00e9thodes courantes de serrage : \u00a0 Serrage plus fin et r\u00e9parti entre chaque pas de vis; R\u00e9partition de la force de pr\u00e9contrainte; Augmentation de la capacit\u00e9 totale de l\u2019assemblage viss\u00e9; Force importante de serrage; Tension r\u00e9guli\u00e8re entre les goujons; Grande pr\u00e9cision du serrage; Pas d\u2019outillage lourd n\u00e9cessaire pour le serrage de l\u2019assemblage; Une pr\u00e9charge plus importante \u00e0 taille de vis \u00e9gale; Pas d\u2019op\u00e9rations difficiles de d\u00e9montage; Bien ma\u00eetris\u00e9e et selon son contexte d\u2019application, la technologie Superbolt permet d\u2019assurer un cycle de vie plus rentable, une bonne fiabilit\u00e9 du fonctionnement et des proc\u00e9dures de maintenance facilit\u00e9es. Le challenge : des applications encore \u00e9mergentes dans de nombreux secteurs A l\u2019heure actuelle, la technologie Superbolt soul\u00e8ve plusieurs points probl\u00e9matiques techniques, car peu d\u2019\u00e9tudes sont accessibles sur l\u2019impact de ce syst\u00e8me sur le serrage de diff\u00e9rents sous-ensembles. Cela est li\u00e9 au fait que son utilisation est encore au stade \u00e9mergent dans plusieurs domaines, ce qui implique de lever un certain nombre d\u2019incertitudes. L\u2019intervention d\u2019AMETRA Expression Num\u00e9rique Pour pallier cette absence de visibilit\u00e9 pour l\u2019un de ses clients, et dans le cadre de son expertise R&D, l\u2019\u00e9quipe d\u2019AMETRA Expression Num\u00e9rique a men\u00e9 une \u00e9tude ayant pour objectif d\u2019approfondir les connaissances sur le comportement au serrage d\u2019une structure par \u00e9crous tensionneurs Superbolt et d\u2019analyser par simulation num\u00e9rique les proc\u00e9dures de serrage au couple, ainsi que ses impacts sur la tenue structurelle. En comparant l\u2019ancienne solution avec le goujon de type Superbolt, nous nous sommes vite rendus compte que la proc\u00e9dure de serrage et de montage avait une grande importance du point de vue de l\u2019\u00e9volution de la pr\u00e9charge et de la \u201ctenue\u201d du Superbolt. L\u2019ordre et la mani\u00e8re dont on va serrer les vis (plus ou moins fort) vont avoir une influence sur la fa\u00e7on dont l\u2019ensemble va tenir. La m\u00e9thodologie de serrage est donc tr\u00e8s importante. Il faut serrer les Jackbolts dans un ordre particulier, et non pas dans le sens des aiguilles d\u2019une montre (les charges \u00e9tant amen\u00e9es \u00e0 se r\u00e9\u00e9quilibrer). AMETRA a donc simul\u00e9 plusieurs m\u00e9thodologies de serrage Superbolt, mod\u00e9lis\u00e9 les contacts et les frottements, et \u00e9valu\u00e9 l\u2019impact de chaque approche pour livrer des recommandations sur-mesure.\u00a0 L\u2019une des conclusions est que si la technologie apporte de nombreux avantages, le degr\u00e9 de complexit\u00e9 est encore important et n\u00e9cessite d\u2019\u201caccompagner\u201d le Superbolt d\u2019une m\u00e9thodologie qui permette de garantir la pr\u00e9charge souhait\u00e9e, \u00e0 savoir ce dont a besoin le client. Pour en savoir plus sur les m\u00e9tiers et expertises du groupe AMETRA, rendez-vous sur le site officiel. [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fullwidth=\u00a0\u00bboff\u00a0\u00bb specialty=\u00a0\u00bboff\u00a0\u00bb][et_pb_row][et_pb_column type=\u00a0\u00bb4_4″][et_pb_divider admin_label=\u00a0\u00bbS\u00e9parateur\u00a0\u00bb color=\u00a0\u00bb#c4c4c4″ show_divider=\u00a0\u00bbon\u00a0\u00bb divider_style=\u00a0\u00bbsolid\u00a0\u00bb divider_position=\u00a0\u00bbtop\u00a0\u00bb hide_on_mobile=\u00a0\u00bbon\u00a0\u00bb] [\/et_pb_divider][et_pb_code admin_label=\u00a0\u00bbCode\u00a0\u00bb] Guillaume, ing\u00e9nieur Calculs [\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[53,79,52,80,64,65,57],"tags":[],"class_list":["post-1180","post","type-post","status-publish","format-standard","hentry","category-bureau-detudes","category-cao","category-conception","category-demarche-qualite","category-expertise","category-innovation","category-recrutement"],"acf":[],"_links":{"self":[{"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/posts\/1180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/comments?post=1180"}],"version-history":[{"count":0,"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/posts\/1180\/revisions"}],"wp:attachment":[{"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/media?parent=1180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/categories?post=1180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/myagencyinside.com\/maquettes\/ametra-group\/wp-json\/wp\/v2\/tags?post=1180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}