{"id":2033,"date":"2026-04-27T11:44:48","date_gmt":"2026-04-27T11:44:48","guid":{"rendered":"https:\/\/protasoftware.com\/fr\/wiki\/comment-detecter-les-erreurs-de-modelisation-avec-le-solveur-creux-de-protastructure\/"},"modified":"2026-04-27T11:44:48","modified_gmt":"2026-04-27T11:44:48","slug":"comment-detecter-les-erreurs-de-modelisation-avec-le-solveur-creux-de-protastructure","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/comment-detecter-les-erreurs-de-modelisation-avec-le-solveur-creux-de-protastructure\/","title":{"rendered":"Comment d\u00e9tecter les erreurs de mod\u00e9lisation avec le solveur creux de ProtaStructure"},"content":{"rendered":"<div>La pr\u00e9sence d&rsquo;\u00e9l\u00e9ments non support\u00e9s dans les mod\u00e8les d&rsquo;analyse structurelle provoque la formation de m\u00e9canismes. Les \u00e9quations d&rsquo;\u00e9quilibre ne peuvent alors plus \u00eatre r\u00e9solues.<\/div>\n<div><\/div>\n<div>Une singularit\u00e9 appara\u00eet dans la matrice de raideur de la structure. Son d\u00e9terminant devient nul et la matrice ne peut pas \u00eatre invers\u00e9e. <\/p>\n<p>Le solveur traditionnel r\u00e9sout le syst\u00e8me d&rsquo;\u00e9quations d&rsquo;\u00e9quilibre par la m\u00e9thode d&#039;\u00e9limination de Gauss-Jordan, et les donn\u00e9es sont pr\u00e9par\u00e9es en cons\u00e9quence. Il peut donc indiquer pr\u00e9cis\u00e9ment le n\u0153ud o\u00f9 se forme le m\u00e9canisme. Le programme retrouve ainsi les num\u00e9ros des n\u0153uds probl\u00e9matiques.<br \/>\n<\/div>\n<div><\/div>\n<div>\nLe solveur d&#039;\u00e9quations creuses utilise d&#039;autres algorithmes pour stocker, inverser et factoriser les donn\u00e9es de la matrice sym\u00e9trique, en grande partie nulles. Cet algorithme est plus rapide et demande moins de m\u00e9moire. En contrepartie, il ne peut pas donner l&#039;adresse exacte du n\u0153ud o\u00f9 le probl\u00e8me se produit.<br \/>\n<\/div>\n<div><\/div>\n<div>\nLorsque le n\u0153ud probl\u00e9matique n&#039;est pas d\u00e9tect\u00e9, on peut d\u00e9sactiver le &#039;solveur d&#039;\u00e9quations creuses&#039; pour identifier les n\u0153uds concern\u00e9s.<br \/>\n<\/div>\n<div><\/div>\n<div>\nLa vid\u00e9o explique comment proc\u00e9der en cas de m\u00e9canisme dans le mod\u00e8le d&#039;analyse structurelle.<\/div>\n<div><\/div>\n<div>\u200b<\/div>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>La pr\u00e9sence d&rsquo;\u00e9l\u00e9ments non support\u00e9s dans les mod\u00e8les d&rsquo;analyse structurelle provoque la formation de m\u00e9canismes. Les \u00e9quations d&rsquo;\u00e9quilibre ne peuvent alors plus \u00eatre r\u00e9solues. Une&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":{"_whitepaper_youtube_videos":"","_whitepaper_youtube_url":"","_whitepaper_youtube_thumbnail":"","footnotes":""},"categories":[53],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-2033","wiki","type-wiki","status-publish","hentry","category-protastructure-protadetails-videos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Comment d\u00e9tecter les erreurs de mod\u00e9lisation avec le solveur creux de ProtaStructure - Prota Software<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/protasoftware.com\/fr\/support\/manuels-techniques\/comment-detecter-les-erreurs-de-modelisation-avec-le-solveur-creux-de-protastructure\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prota Software\" \/>\n<meta property=\"og:description\" content=\"La pr\u00e9sence d&rsquo;\u00e9l\u00e9ments non support\u00e9s dans les mod\u00e8les d&rsquo;analyse structurelle provoque la formation de m\u00e9canismes. 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