{"id":6645,"date":"2024-06-09T12:52:10","date_gmt":"2024-06-09T10:52:10","guid":{"rendered":"https:\/\/blog.federnshop.com\/types-de-ressorts-de-compression-de-contrainte\/"},"modified":"2024-06-12T11:34:32","modified_gmt":"2024-06-12T09:34:32","slug":"types-de-ressorts-de-compression-de-contrainte","status":"publish","type":"post","link":"https:\/\/blog.federnshop.com\/fr\/types-de-ressorts-de-compression-de-contrainte\/","title":{"rendered":"Types de ressorts de compression de contrainte"},"content":{"rendered":"<p>Avant d&rsquo;interpr\u00e9ter le<a href=\"https:\/\/blog.federnshop.com\/fr\/information-ressorts-de-compression\/\" target=\"_blank\" rel=\"noopener noreferrer\"> Ressort de compression<\/a> Il convient essentiellement de clarifier si le type de contrainte pr\u00e9vu est statique, quasi-statique ou dynamique.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.federnshop.com\/fr\/types-de-ressorts-de-compression-de-contrainte\/#Contrainte_statique_ou_quasi-statique\" >Contrainte statique ou quasi-statique<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.federnshop.com\/fr\/types-de-ressorts-de-compression-de-contrainte\/#Stress_dynamique\" >Stress dynamique<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Contrainte_statique_ou_quasi-statique\"><\/span>Contrainte statique ou quasi-statique<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Charge constante de temps (au repos) ou charge variable dans le temps avec moins de 10 000 courses au total ou petites contraintes de course allant jusqu&rsquo;\u00e0 0,1 x r\u00e9sistance \u00e0 la fatigue (\u03c4kh = \u03c4k2 -\u03c4k1).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Stress_dynamique\"><\/span>Stress dynamique<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>La contrainte dynamique dans les ressorts est d\u00e9finie comme une contrainte qui change au fil du temps avec plus de 10 000 changements de charge ou des contraintes de course sup\u00e9rieures \u00e0 0,1 x r\u00e9sistance \u00e0 la fatigue (\u03c4kh) avec une contrainte de course constante et variable. Le ressort est principalement pr\u00e9tendu et expos\u00e9 \u00e0 des charges de houle p\u00e9riodiques avec une courbe sinuso\u00efdale qui se produisent de mani\u00e8re al\u00e9atoire (stochastiquement), comme c&rsquo;est le cas avec la suspension de v\u00e9hicule.<\/p>\n<p><span style=\"text-decoration: underline;\">En fonction du nombre de cycles de charge \u00ab\u00a0N\u00a0\u00bb requis sans interruption, on diff\u00e9rencie:<\/span><\/p>\n<p>1. La zone de<a title=\"Dauerfestigkeit Wikipedia\" href=\"https:\/\/blog.federnshop.com\/fr\/resistance-a-la-fatigue\/\" target=\"_blank\" rel=\"noopener noreferrer\"> R\u00e9sistance \u00e0 la fatigue<\/a> avec nombre de cycles de charge<br \/>\nN \u2265 10<sup> 7e<\/sup> pour ressorts form\u00e9s \u00e0 froid<br \/>\nN \u2265 2 x 10<sup> 6e<\/sup> pour ressorts thermoform\u00e9s<br \/>\nAvec une tension de course inf\u00e9rieure \u00e0 la r\u00e9sistance \u00e0 la fatigue.<\/p>\n<p>2. La zone de<a title=\"Zeitfestigkeit Wikipedia\" href=\"http:\/\/de.wikipedia.org\/wiki\/W%C3%B6hlerversuch\" target=\"_blank\" rel=\"noopener noreferrer\"> R\u00e9sistance \u00e0 la fatigue<\/a> avec nombre de cycles de charge<br \/>\nN&lt; dix<sup> 7e<\/sup> pour ressorts form\u00e9s \u00e0 froid<br \/>\nN&lt; 2 x 10<sup> 6e<\/sup> pour ressorts thermoform\u00e9s<br \/>\nAvec une tension de course sup\u00e9rieure \u00e0 la r\u00e9sistance \u00e0 la fatigue et inf\u00e9rieure \u00e0 la force de course dans le temps<\/p>\n<p>La contrainte de cisaillement existante est d\u00e9termin\u00e9e comme suit.<\/p>\n<p>Contrainte de cisaillement due \u00e0 la force: <span class=\"katex-eq\" data-katex-display=\"false\">\\Large \\tau=\\frac{8DF}{\\pi d^{3}}<\/span><\/p>\n<p>Contrainte de cisaillement du chemin: <span class=\"katex-eq\" data-katex-display=\"false\">\\Large \\tau=\\frac{Gds}{\\pi nD^{2}}<\/span><\/p>\n<figure id=\"attachment_6650\" aria-describedby=\"caption-attachment-6650\" style=\"width: 600px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/Formelzeichen_Druckfedern_komplett.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6650 size-full\" src=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/Druckfeder_Schwingungsschaubild_dynamisch.jpg\" alt=\"Diagramme de vibration dynamique du ressort de compression\" width=\"600\" height=\"372\" data-wp-pid=\"1762\" srcset=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/Druckfeder_Schwingungsschaubild_dynamisch.jpg 600w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Druckfeder_Schwingungsschaubild_dynamisch-300x186.jpg 300w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Druckfeder_Schwingungsschaubild_dynamisch-200x124.jpg 200w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Druckfeder_Schwingungsschaubild_dynamisch-400x248.jpg 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><figcaption id=\"caption-attachment-6650\" class=\"wp-caption-text\">Diagramme de vibration dynamique du ressort de compression<\/figcaption><\/figure>\n<p><a href=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/Formelzeichen_Druckfedern_komplett.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Description Symbole de formule Ressorts de compression [PDF]<\/a><\/p>\n<p>Pour les ressorts de compression charg\u00e9s dynamiquement, la contrainte de cisaillement corrig\u00e9e s&rsquo;applique en raison de l&rsquo;augmentation de contrainte qui en r\u00e9sulte. Avec le facteur de correction de tension k, qui d\u00e9pend du rapport d&rsquo;enroulement (rapport du diam\u00e8tre moyen \u00e0 l&rsquo;\u00e9paisseur du fil) du ressort, la tension la plus \u00e9lev\u00e9e peut \u00eatre approximativement d\u00e9termin\u00e9e.<\/p>\n<p style=\"text-align: left;\"><strong>Contrainte de cisaillement corrig\u00e9e<\/strong> :<\/p>\n<p style=\"text-align: left;\">\u03c4k1 = k \u00b7 \u03c41<u>&lt;<\/u> \u03c4ko<\/p>\n<p style=\"text-align: left;\">\u03c4k2 = k \u00b7 \u03c42<span style=\"text-decoration: underline;\">&lt;<\/span> \u03c4ko<\/p>\n<p style=\"text-align: left;\">o\u00f9 k s&rsquo;applique (selon Bergstr\u00e4sser)<\/p>\n<p style=\"text-align: left;\"><span class=\"katex-eq\" data-katex-display=\"false\">\\Large k=\\frac{\\frac{D}{d}+0,5}{\\frac{D}{d}-0,75}<\/span><\/p>\n<p>La contrainte sup\u00e9rieure admissible \u03c4ko pour chaque type de mat\u00e9riau de ressort est lue \u00e0 partir du diagramme de r\u00e9sistance \u00e0 la fatigue (diagramme Goodman) de la norme DIN EN 13906-1 (Fig.12 \u00e0 Fig.22).<\/p>\n<p>La course de travail souhait\u00e9e ne doit pas d\u00e9passer la r\u00e9sistance \u00e0 la fatigue (\u03c4kh):<\/p>\n<p style=\"text-align: left;\">\u03c4kh = \u03c4k2 &#8211; \u03c4k1<u>&lt;<\/u> \u03c4khzul<\/p>\n<p style=\"text-align: left;\">Avec le<a href=\"https:\/\/www.federnshop.com\/de\/service-und-informationen\/federberechnung-nach-din-13906.html\" target=\"_blank\" rel=\"noopener noreferrer\"> Programme de calcul de ressorts Gutekunst WinFSB<\/a> chaque ressort de compression calcul\u00e9 peut \u00e9galement \u00eatre calcul\u00e9 pour l&rsquo;application dynamique. Il ne vous reste plus qu&rsquo;\u00e0 activer les options \u00ab\u00a0permanent\u00a0\u00bb et \u00ab\u00a0grenaill\u00e9\u00a0\u00bb. Les valeurs dynamiques et le diagramme de Goodman sont alors affich\u00e9s sous la zone \u00ab\u00a0Stress\u00a0\u00bb.<\/p>\n<figure id=\"attachment_6648\" aria-describedby=\"caption-attachment-6648\" style=\"width: 300px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.federnshop.com\/de\/service_informationen\/federnberechnung_din.html\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6648 size-medium\" src=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/\/Goodman-Diagramm_Druckfeder_dauerfest-300x244.png\" alt=\"Graphique WinFSB permanent\" width=\"300\" height=\"244\" data-wp-pid=\"759\" srcset=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/Goodman-Diagramm_Druckfeder_dauerfest-300x244.png 300w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Goodman-Diagramm_Druckfeder_dauerfest-200x163.png 200w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Goodman-Diagramm_Druckfeder_dauerfest.png 589w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-6648\" class=\"wp-caption-text\">Diagramme Goodman WinFSB durable<\/figcaption><\/figure>\n<figure id=\"attachment_6649\" aria-describedby=\"caption-attachment-6649\" style=\"width: 300px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.federnshop.com\/de\/service_informationen\/federnberechnung_din.html\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-6649 size-medium\" src=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/\/Goodman-Diagramm_Druckfeder_nicht_dauerfest-300x246.png\" alt=\"Graphiques WinFSB non permanents\" width=\"300\" height=\"246\" data-wp-pid=\"760\" srcset=\"https:\/\/blog.federnshop.com\/wp-content\/uploads\/Goodman-Diagramm_Druckfeder_nicht_dauerfest-300x246.png 300w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Goodman-Diagramm_Druckfeder_nicht_dauerfest.png 600w, https:\/\/blog.federnshop.com\/wp-content\/uploads\/Goodman-Diagramm_Druckfeder_nicht_dauerfest-200x164.png 200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-6649\" class=\"wp-caption-text\">Diagramme de Goodman non permanent<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/EusjLYwYpLE\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><strong>Important! <\/strong><\/p>\n<p>La contrainte de blocage \u03c4czul doit \u00e9galement \u00eatre v\u00e9rifi\u00e9e afin de prendre en compte la superposition de contraintes due aux vibrations naturelles du corps du ressort avec des ressorts de compression charg\u00e9s dynamiquement.<\/p>\n<p>Les ressorts de compression soumis \u00e0 une contrainte dynamique doivent \u00eatre grenaill\u00e9s avant utilisation. Le grenaillage comprime les couches de surface de mani\u00e8re \u00e0 obtenir une r\u00e9sistance \u00e0 la fatigue nettement meilleure.<\/p>\n<p>Pour la r\u00e9sistance \u00e0 la fatigue d&rsquo;un ressort de compression, les ressorts normaux sont particuli\u00e8rement adapt\u00e9s aux applications moyennement dynamiques<a href=\"https:\/\/blog.federnshop.com\/fr\/proprietes-de-lacier-a-ressort\/\" target=\"_blank\" rel=\"noopener noreferrer\"> Fil d&rsquo;acier \u00e0 ressort<\/a> EN 10270-1DH et SH, ainsi que les fils de ressort de soupape EN 10270-2-VDC, -VDSiCr et -VDCrV pour les applications \u00e0 haute dynamique.<\/p>\n<p><strong>Une fois la corrosion ou le frottement \u00e0 travers<a href=\"https:\/\/blog.federnshop.com\/federendlagerungen-knickgrenzen\/\"> Mandrin ou manchon<\/a> agit sur le ressort de compression, la r\u00e9sistance \u00e0 la fatigue n&rsquo;est plus garantie! <\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><em>Information additionnelle:<\/em><\/p>\n<ul>\n<li><a href=\"https:\/\/blog.federnshop.com\/fr\/types-de-ressorts-de-traction-de-contrainte\/\">Types de ressorts de tension de contrainte<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/www.federnshop.com\/de\/service_informationen\/federnauslegung.html\" target=\"_blank\" rel=\"noopener noreferrer\">Conception de ressort<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/www.federnshop.com\/de\/service-und-informationen\/technische-beratung.html\" target=\"_blank\" rel=\"noopener noreferrer\">Conseils techniques de Gutekunst Federn<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/www.federnshop.com\/de\/federberechnung-auswahl.html\" target=\"_blank\" rel=\"noopener noreferrer\">Calcul du ressort Gutekunst WinFSB<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Avant d&rsquo;interpr\u00e9ter le Ressort de compression Il convient essentiellement de clarifier si le type de contrainte pr\u00e9vu est statique, quasi-statique ou dynamique. Contrainte statique ou quasi-statique Charge constante de temps (au repos) ou charge variable dans le temps avec moins<\/p>\n","protected":false},"author":4,"featured_media":6650,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[464,738,871,870],"tags":[1127,1471,620,1469,791,1470,792],"class_list":["post-6645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-connaissance","category-industrie-fr","category-ressorts-de-compression","category-ressorts-en-fil","tag-dauerfestigkeit-fr","tag-dauerhubfestigkeit-fr","tag-druckfedern-fr","tag-dynamische-beanspruchung-fr","tag-federnberechnung-fr","tag-statische-beanspruchung-fr","tag-winfsb-fr"],"_links":{"self":[{"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/posts\/6645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/comments?post=6645"}],"version-history":[{"count":6,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/posts\/6645\/revisions"}],"predecessor-version":[{"id":11426,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/posts\/6645\/revisions\/11426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/media\/6650"}],"wp:attachment":[{"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/media?parent=6645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/categories?post=6645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.federnshop.com\/fr\/wp-json\/wp\/v2\/tags?post=6645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}