{"id":23284,"date":"2022-02-01T09:00:00","date_gmt":"2022-02-01T07:00:00","guid":{"rendered":"https:\/\/blogs.autodesk.com\/villagebim?p=23284"},"modified":"2022-02-03T19:30:39","modified_gmt":"2022-02-03T17:30:39","slug":"explications-autodesk-robot-structural-analysis-lanalyse-de-flambement-generalise-calcul-des-longueurs-de-flambement","status":"publish","type":"post","link":"https:\/\/blogs.autodesk.com\/villagebim\/2022\/02\/explications-autodesk-robot-structural-analysis-lanalyse-de-flambement-generalise-calcul-des-longueurs-de-flambement.html","title":{"rendered":"[Explications] Autodesk Robot Structural Analysis – L’analyse de flambement g\u00e9n\u00e9ralis\u00e9, calcul des longueurs de flambement"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

L’analyse de flambement g\u00e9n\u00e9ralise permet de d\u00e9terminer le coefficient critique d’Euler sous diff\u00e9rents cas de charges (suivant la m\u00e9thode Eul\u00e9rienne) et sous diff\u00e9rents modes de vibrations. Ainsi, la charge sollicitant la structure multipli\u00e9e par le coefficient critique d’Euler donnera la charge limite d’Euler – ruine de la structure par compression.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

De plus, le coefficient critique d’Euler permet de d\u00e9duire tr\u00e8s facilement les longueurs de flambement th\u00e9orique des diff\u00e9rents \u00e9l\u00e9ments d\u2019un structure complexe, \u00e0 partir de la formule suivante :<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Le logiciel Autodesk Robot Structural Analysis est capable de r\u00e9aliser ce type d\u2019\u00e9tude et je vous propose \u00e0 partir d\u2019un exemple, vous montrer tous les d\u00e9tails des calculs.<\/p>\n\n\n\n

Exemple\u00a0:<\/u><\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Hypoth\u00e8ses :<\/u><\/strong><\/p>\n\n\n\n

Nous allons nous int\u00e9resser \u00e0 la barre 38 et voici les donn\u00e9es :<\/p>\n\n\n\n

  • Longueur de barre \u00e9tudi\u00e9e : 6924,64 mm<\/li>
  • Section :<\/li><\/ul>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    • Module de Young = 210000 Mpas<\/li>
    • Force compression au n\u0153ud 9 = 125689,79 N<\/li>
    • Force compression au n\u0153ud 26 = 112163,58 N<\/li><\/ul>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      • Coefficient critique d\u2019Euler<\/li><\/ul>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        Calcul manuel :<\/u><\/strong><\/p>\n\n\n\n

        \"\"<\/figure>\n\n\n\n

        R\u00e9sultats issus du logiciel Autodesk Robot Structural Analysis :<\/u><\/strong><\/p>\n\n\n\n

        \"\"<\/figure>\n\n\n\n

        Conclusion :<\/u><\/strong><\/p>\n\n\n\n

        Les r\u00e9sultats manuels corroborent les r\u00e9sultats du logiciel.<\/p>\n","protected":false},"excerpt":{"rendered":"

        L’analyse de flambement g\u00e9n\u00e9ralise permet de d\u00e9terminer le coefficient critique d’Euler sous diff\u00e9rents cas de charges (suivant la m\u00e9thode Eul\u00e9rienne) et sous diff\u00e9rents modes de vibrations. Ainsi, la charge sollicitant la structure multipli\u00e9e par le coefficient critique d’Euler donnera la charge limite d’Euler – ruine de la structure par compression. De plus, le coefficient critique […]<\/p>\n","protected":false},"author":4760,"featured_media":23303,"menu_order":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[3320,3379,36,77,3325,6],"tags":[],"class_list":["post-23284","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analyse","category-autodesk","category-education","category-simulations-analyses","category-tips-tricks","category-trucs-et-astuces","dhig-theme--light"],"acf":[],"_links":{"self":[{"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/posts\/23284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/users\/4760"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/comments?post=23284"}],"version-history":[{"count":0,"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/posts\/23284\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/media\/23303"}],"wp:attachment":[{"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/media?parent=23284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/categories?post=23284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.autodesk.com\/villagebim\/wp-json\/wp\/v2\/tags?post=23284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}