{"id":2617,"date":"2019-07-12T08:00:58","date_gmt":"2019-07-12T06:00:58","guid":{"rendered":"https:\/\/blogs.solidworks.com\/solidworksfrance\/?p=2617"},"modified":"2019-07-09T12:34:56","modified_gmt":"2019-07-09T10:34:56","slug":"les-outils-de-symetrie-et-faible-raideur-solidworks-simulation","status":"publish","type":"post","link":"https:\/\/blogs.solidworks.com\/solidworksfrance\/2019\/07\/les-outils-de-symetrie-et-faible-raideur-solidworks-simulation.html","title":{"rendered":"Les outils de &#8220;Sym\u00e9trie&#8221; et &#8220;faible raideur&#8221; SOLIDWORKS Simulation"},"content":{"rendered":"<h2 style=\"text-align: left;\"><span style=\"font-size: 22px; text-transform: uppercase; color: #cc1719; font-family: mulibold, sans-serif;\">Introduction <\/span><\/h2>\n<p style=\"text-align: justify;\">Bonjour \u00e0 toutes et \u00e0 tous,<\/p>\n<p style=\"text-align: justify;\">Ce billet vise \u00e0 pr\u00e9senter <strong>deux outils tr\u00e8s pratiques lors des calculs statiques de Simulation<\/strong> :<br \/>\n\u2022 La faible raideur<br \/>\n\u2022 La sym\u00e9trie<\/p>\n<p style=\"text-align: justify;\">Pour ceci, je vais partir d\u2019un cas simplissime : une colonne de diam\u00e8tre 100mm avec un chargement de 100kN sur le dessus et simplement pos\u00e9e au sol (sol glissant). En th\u00e9orie, on doit retrouver 12.74MPa dans la section.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0M6YwvRN99JoHi1p*GRhin7hgNzWws5IsE6A1qtEzZOFBbzrRfeAKc4CzV9HEOLCUxfrhq2x1KM6LsjVBlDD0F\/cylindre.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0M6YwvRN99JoHi1p*GRhin7hgNzWws5IsE6A1qtEzZOFBbzrRfeAKc4CzV9HEOLCUxfrhq2x1KM6LsjVBlDD0F\/cylindre.JPG\" alt=\"\" width=\"194\" height=\"281\" \/><\/a><\/p>\n<h2 style=\"text-align: left;\"><span style=\"font-size: 22px; text-transform: uppercase; color: #cc1719; font-family: mulibold, sans-serif;\">Mod\u00e8le 1 : un cylindre complet avec un encastrement<\/span><\/h2>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0WL8PW6VgOFNgZ9gHSgWbPIomkLvjNkV4OIMFRrxXRHdPAqIWmCyjfC85Nf6Vjl-2yc*RDCOCufy2en-*dSqxL\/encastr.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0WL8PW6VgOFNgZ9gHSgWbPIomkLvjNkV4OIMFRrxXRHdPAqIWmCyjfC85Nf6Vjl-2yc*RDCOCufy2en-*dSqxL\/encastr.JPG\" alt=\"\" width=\"163\" height=\"267\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">On retrouve des contraintes correctes, sauf sur une zone proche de l\u2019encastrement o\u00f9<strong> l\u2019\u00e9largissement du cylindre est bloqu\u00e9 par l\u2019encastrement<\/strong>. En fait, le cylindre est pos\u00e9 sur un sol glissant. Cette mod\u00e9lisation n\u2019est donc pas satisfaisante.<\/p>\n<h2 style=\"text-align: left;\"><span style=\"font-size: 22px; text-transform: uppercase; color: #cc1719; font-family: mulibold, sans-serif;\">Mod\u00e8les 2 : encastrement remplac\u00e9 par un appui plan <\/span><\/h2>\n<p style=\"text-align: justify;\">Dans ce mod\u00e8le, l\u2019encastrement est remplac\u00e9 par un \u00abAppui plan\u00bb. Il faut ajouter l\u2019option<strong> \u00abutiliser une faible raideur pour stabiliser le mod\u00e8le\u00bb<\/strong> dans les propri\u00e9t\u00e9s de l\u2019\u00e9tude.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J1VduW7BNN4hQbYy60zhAm68AXMEfXsXt56JPnAPe4SAnRRRXpFfoKc6T54RQQpGOh6bKA4fGl5Q*P5ij8am5Y6\/optioncocher.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J1VduW7BNN4hQbYy60zhAm68AXMEfXsXt56JPnAPe4SAnRRRXpFfoKc6T54RQQpGOh6bKA4fGl5Q*P5ij8am5Y6\/optioncocher.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">En effet, quand on regarde les forces de r\u00e9action au niveau de l\u2019encastrement du mod\u00e8le 1, on constate qu\u2019on retrouve bien la force de 100kN dans la direction du chargement, mais aussi qu\u2019il y a <strong>de faibles efforts parasites dans les autres directions<\/strong>.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0n4LTNNjyUWmemzrs4mnm-ML*rlwE2pn-bok2mJuEfMHU-C3yaxxkeFGaCGInfCSXChlaV51Qixu-90B3UGMgh\/forcesrsultantes.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0n4LTNNjyUWmemzrs4mnm-ML*rlwE2pn-bok2mJuEfMHU-C3yaxxkeFGaCGInfCSXChlaV51Qixu-90B3UGMgh\/forcesrsultantes.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><em>Forces de r\u00e9action dans le cas encastr\u00e9<\/em><\/p>\n<p style=\"text-align: justify;\">Avec l&#8217;appui plan, on obtient ce r\u00e9sultat ci-dessous.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J2FJFXjSDsP8QY6KoBbccyH6r-s5uMRBmyGb2AFbAL2MBsRvUWl*jDpim*EU*ms5XsQCBThWikMoyvGZsuWVFzt\/appuiplan.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J2FJFXjSDsP8QY6KoBbccyH6r-s5uMRBmyGb2AFbAL2MBsRvUWl*jDpim*EU*ms5XsQCBThWikMoyvGZsuWVFzt\/appuiplan.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">Le r\u00e9sultat est acceptable, malgr\u00e9 <strong>un l\u00e9ger mouvement de corps rigide<\/strong> (sans impact sur les contraintes).<\/p>\n<h2 style=\"text-align: left;\"><span style=\"font-size: 22px; text-transform: uppercase; color: #cc1719; font-family: mulibold, sans-serif;\">Mod\u00e8le 3 : conditions de sym\u00e9trie <\/span><\/h2>\n<p style=\"text-align: justify;\">Dans ce mod\u00e8le, je tire profit de deux sym\u00e9tries du mod\u00e8le + de ses chargements. Je ne garde qu\u2019un quart du cylindre en <strong>ajoutant des conditions de sym\u00e9trie au niveau des faces coup\u00e9es par les plans de sym\u00e9trie<\/strong>.<br \/>\n<span style=\"text-decoration: underline;\"><strong>ATTENTION<\/strong><\/span> : il faut bien penser \u00e0 diviser le chargement par 4 !<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J1m1KnY3Yp*pZ4sYaDW7gipHQri-3*ejdS-lUn6iqEiKg30PwABw*DpdDMG9LMlbc2BJLhyEhQbzx*d1A55wzOd\/conditiondesymtrie.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J1m1KnY3Yp*pZ4sYaDW7gipHQri-3*ejdS-lUn6iqEiKg30PwABw*DpdDMG9LMlbc2BJLhyEhQbzx*d1A55wzOd\/conditiondesymtrie.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><em>Condition de sym\u00e9trie (d\u00e9placements avanc\u00e9s)<\/em><\/p>\n<p style=\"text-align: justify;\">R\u00e9sultat obtenu :<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J1pHSCBb9ahWUGjWx2TDGrBYHXgfzf-jhCiWb9dC2Yokguj1FbrCQlUfSFbg0bVBhmj-8m*JlCTllBKogtlXm2V\/symetrie2.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J1pHSCBb9ahWUGjWx2TDGrBYHXgfzf-jhCiWb9dC2Yokguj1FbrCQlUfSFbg0bVBhmj-8m*JlCTllBKogtlXm2V\/symetrie2.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">On r\u00e9cup\u00e8re alors bien les bonnes contraintes, <strong>une d\u00e9form\u00e9e correcte et aucun d\u00e9placement de corps rigide parasite<\/strong>.<\/p>\n<h2 style=\"text-align: left;\"><span style=\"font-size: 22px; text-transform: uppercase; color: #cc1719; font-family: mulibold, sans-serif;\">Mod\u00e8le 4 : simplification 2d <\/span><\/h2>\n<p style=\"text-align: justify;\">L\u2019id\u00e9al quand on le peut, c\u2019est <strong>d\u2019utiliser une simplification 2D axisym\u00e9trique<\/strong> (<a title=\"SolidWorks Simulation Professional\" href=\"#token:5076780781cc8\" target=\"_blank\" rel=\"noopener noreferrer\">licence SOLIDWORKS Simulation Professional<\/a>) pour pouvoir mailler tr\u00e8s finement et obtenir un r\u00e9sultat extr\u00eamement pr\u00e9cis.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J2ePnd8fQhhdsxkQB91bnGw*bDfeP8TdRcMdoNgUPoq0xFLlBGICNjEDn6z9rqC88jmJweaqq6SMsRVSCkx1arw\/menusimplification2D.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J2ePnd8fQhhdsxkQB91bnGw*bDfeP8TdRcMdoNgUPoq0xFLlBGICNjEDn6z9rqC88jmJweaqq6SMsRVSCkx1arw\/menusimplification2D.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0A-E5gojbCrFSQjKlohhkd0luQMcBf5dHPtnm4w-72*Mc3iAnr3LYIS1BGJmQaZBkCQYTvmIhZyM3L-c6AnTj5\/menusimplification2D_bis.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J0A-E5gojbCrFSQjKlohhkd0luQMcBf5dHPtnm4w-72*Mc3iAnr3LYIS1BGJmQaZBkCQYTvmIhZyM3L-c6AnTj5\/menusimplification2D_bis.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><em>Menus pour acc\u00e9der \u00e0 la simplification 2D<\/em><\/p>\n<p style=\"text-align: justify;\">Les r\u00e9sultats obtenus sont <strong>d&#8217;une grande pr\u00e9cision<\/strong>.<\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J17fxCZa3glDbN9nd2p-wbCfe*2Rvq*opG9YoxB*hb9Opo4li9YDnt4j2r4*zpfezts4X2ZXpw*jyKJcSzL9b1Z\/axisym.JPG\" target=\"_self\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"align-center\" src=\"https:\/\/api.ning.com\/files\/6yWgYSVs-J17fxCZa3glDbN9nd2p-wbCfe*2Rvq*opG9YoxB*hb9Opo4li9YDnt4j2r4*zpfezts4X2ZXpw*jyKJcSzL9b1Z\/axisym.JPG?width=250\" alt=\"\" width=\"250\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">Cet article n\u2019a pas pour vocation de rentrer dans les d\u00e9tails de chacun de ces outils. N\u00e9anmoins, <a title=\"SolidWorks Simulation\" href=\"#token:52d51df09c363\" target=\"_blank\" rel=\"noopener noreferrer\">l\u2019aide de SOLIDWORKS<\/a> est claire. Nous sommes ensuite \u00e0 votre \u00e9coute pour toutes autres questions ou propositions de billets de blog suppl\u00e9mentaires.<\/p>\n<p style=\"text-align: justify;\">En esp\u00e9rant que cet article vous aidera dans votre travail.<\/p>\n<p style=\"text-align: justify;\">A bient\u00f4t sur <a title=\"Blog SolidWorks\" href=\"https:\/\/www.logiciel-cao.com\/blog\/entries\/list\" target=\"_blank\" rel=\"noopener noreferrer\">le Blog SOLIDWORKS<\/a> !<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Bonjour \u00e0 toutes et \u00e0 tous, Ce billet vise \u00e0 pr\u00e9senter deux outils tr\u00e8s pratiques lors des calculs statiques de Simulation : \u2022 La faible raideur \u2022 La sym\u00e9trie Pour ceci, je vais partir d\u2019un cas simplissime : une<\/p>\n... <a href=\"https:\/\/blogs.solidworks.com\/solidworksfrance\/2019\/07\/les-outils-de-symetrie-et-faible-raideur-solidworks-simulation.html\">Continued<\/a>","protected":false},"author":478,"featured_media":2619,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[601,717,20,1,620],"tags":[],"class_list":["post-2617","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-simulation","category-solidworks","category-solidworks-simulation","category-uncategorized","category-var"],"acf":[],"_links":{"self":[{"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/posts\/2617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/users\/478"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/comments?post=2617"}],"version-history":[{"count":1,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/posts\/2617\/revisions"}],"predecessor-version":[{"id":2618,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/posts\/2617\/revisions\/2618"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/media\/2619"}],"wp:attachment":[{"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/media?parent=2617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/categories?post=2617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.solidworks.com\/solidworksfrance\/wp-json\/wp\/v2\/tags?post=2617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}