{"id":1686,"date":"2026-08-05T15:57:35","date_gmt":"2026-08-05T13:57:35","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?p=1686"},"modified":"2026-08-05T16:03:47","modified_gmt":"2026-08-05T14:03:47","slug":"vibrations","status":"publish","type":"post","link":"https:\/\/www.ias.u-psud.fr\/index.php\/2026\/08\/05\/vibrations\/","title":{"rendered":"Vibrations"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1686\" class=\"elementor elementor-1686\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f4f600f e-flex e-con-boxed e-con e-parent\" data-id=\"f4f600f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-63f7b05 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"63f7b05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Vibrations<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-01b31cc e-con e-atomic-element e-flexbox-base e-8ac0341 \" data-id=\"01b31cc\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"01b31cc\">\n    \t\t<div class=\"elementor-element elementor-element-10a69e2 elementor-widget elementor-widget-text-editor\" data-id=\"10a69e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Les instruments, embarqu\u00e9s sur les satellites, sont soumis \u00e0 de fortes vibrations lors des lancements. Afin de conna\u00eetre leur comportement dynamique, l\u2019am\u00e9liorer, l\u2019optimiser au regard des sp\u00e9cifications et des contraintes, valider leurs mod\u00e8les, on a recours aux tests en vibrations.<\/p><p>L\u2019instrument est plac\u00e9 sur un banc de test qui reproduit l\u2019environnement vibratoire r\u00e9el d\u00e9fini dans un profil d\u2019essais.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-284441e e-con e-atomic-element e-flexbox-base e-284441e-0db5cfc \" data-id=\"284441e\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"284441e\">\n    \t\t<div class=\"elementor-element elementor-element-e548a20 elementor-widget elementor-widget-text-editor\" data-id=\"e548a20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>POT VIBRANT\u00a0 Mod\u00e8le : ETS MPA409 M437A GT700<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-a187e81 e-grid e-con-boxed e-con e-parent\" data-id=\"a187e81\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7069725 elementor-widget elementor-widget-image\" data-id=\"7069725\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"677\" height=\"525\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Vibrations-1.png\" class=\"attachment-large size-large wp-image-1688\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Vibrations-1.png 677w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Vibrations-1-300x233.png 300w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da9c33d elementor-widget elementor-widget-image\" data-id=\"da9c33d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"677\" height=\"879\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Vibrations-2.png\" class=\"attachment-large size-large wp-image-1689\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Vibrations-2.png 677w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Vibrations-2-231x300.png 231w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-19c73e1 e-con e-atomic-element e-flexbox-base e-d8a349a \" data-id=\"19c73e1\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"19c73e1\">\n    <div class=\"elementor-element elementor-element-a1e72ef e-con e-atomic-element e-flexbox-base e-4b314b3 \" data-id=\"a1e72ef\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"a1e72ef\">\n    \t\t<div class=\"elementor-element elementor-element-b84219e elementor-widget elementor-widget-text-editor\" data-id=\"b84219e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>SP<span class=\"ZNx93QP1XNrBdT5MI6SY\"><span class=\"expandableItem\">\u00c9<\/span><\/span>CIFICATIONS DU SYST<span class=\"kY2IgmnCmOGjharHErah N56cWZpP8cNJu1dqgCxB\"><b>\u00c8<\/b><\/span>ME :<\/strong><\/p><table><tbody><tr><td width=\"302\"><p>Sinus (cr\u00eate) (5 \u00e0 2000 Hz)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>40KN<\/p><\/td><\/tr><tr><td width=\"302\"><p>Al\u00e9atoires RMS (20 \u00e02000 Hz)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>40KN<\/p><\/td><\/tr><tr><td width=\"302\"><p>Choc (cr\u00eate)\u00a0<\/p><\/td><td width=\"302\"><p>80kN<\/p><\/td><\/tr><tr><td width=\"302\"><p>D\u00e9placement maximum (c-c)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>51 mm<\/p><\/td><\/tr><tr><td width=\"302\"><p>Vitesse maximum\u00a0\u00a0\u00a0\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>2m\/s<\/p><\/td><\/tr><tr><td width=\"302\"><p>Acc\u00e9l\u00e9ration maximum en Sinus cr\u00eate (Vertical \u00e0 vide) \u00a0\u00a0<\/p><\/td><td width=\"302\"><p>100g<\/p><\/td><\/tr><tr><td width=\"302\"><p>Diam\u00e8tre interface<\/p><\/td><td width=\"302\"><p>370 mm<\/p><\/td><\/tr><tr><td width=\"302\"><p>Grille inserts\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>\u00d8 150 mm; \u00d8 300 mm<\/p><\/td><\/tr><tr><td width=\"302\"><p>Table horizontale\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>700 x 700 mm\u00b2<\/p><\/td><\/tr><tr><td width=\"302\"><p>T\u00eate d&rsquo;expansion\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p><\/td><td width=\"302\"><p>\u00d8 600 mm<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-29d4ec5 e-con e-atomic-element e-flexbox-base e-bdec0cd \" data-id=\"29d4ec5\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"29d4ec5\">\n    \t\t<div class=\"elementor-element elementor-element-f85e8e6 elementor-widget elementor-widget-text-editor\" data-id=\"f85e8e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"rteleft\"><strong>ENVIRONNEMENT :<\/strong><\/p><ul><li class=\"rteleft\">Hall Charra class\u00e9 salle propre ISO8<\/li><li class=\"rteleft\">Isolation du syst\u00e8me de refroidissement par air de la bobine<\/li><li class=\"rteleft\">Temp\u00e9rature et hygrom\u00e9trie r\u00e9gul\u00e9es<\/li><li class=\"rteleft\">Taux de particules mesur\u00e9 quotidiennement<\/li><li class=\"rteleft\">Flux de classe ISO5 positionnable avec mesure du taux particules<\/li><\/ul><p class=\"rteleft\">\u00a0<\/p><p class=\"rteleft\"><img decoding=\"async\" src=\"https:\/\/www.ias.u-psud.fr\/sites\/default\/files\/station\/image3.png\" alt=\"\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-e5cd15f e-con e-atomic-element e-flexbox-base e-85ef756 \" data-id=\"e5cd15f\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"e5cd15f\">\n    \t\t<div class=\"elementor-element elementor-element-81b194c elementor-widget elementor-widget-text-editor\" data-id=\"81b194c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>SYST<span class=\"kY2IgmnCmOGjharHErah N56cWZpP8cNJu1dqgCxB\"><b>\u00c8<\/b><\/span>ME DE PILOTAGE :<\/strong><\/p><ul><li>Logiciel Vibpilot de la soci\u00e9t\u00e9 \u00ab\u00a0M+P\u00a0\u00bb<\/li><li>32 voies de mesure<\/li><li>Acc\u00e9l\u00e9rom\u00e8tres ICP monoaxes et triaxes<\/li><li>Rapport d&rsquo;essai et fichiers de donn\u00e9es<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-a0a96ce e-con e-atomic-element e-flexbox-base e-e7e6d7c \" data-id=\"a0a96ce\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"a0a96ce\">\n    \n<\/div>\n\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>La mission SoHO (Solar and Heliospheric Observatory &#8211; ESA\/NASA) a \u00e9t\u00e9 con\u00e7ue pour \u00e9tudier la structure interne du Soleil, le chauffage de son atmosph\u00e8re, les origines et l\u2019acc\u00e9l\u00e9ration du vent solaire.<\/p>\n","protected":false},"author":3,"featured_media":1633,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe"],"_links":{"self":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/1686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/comments?post=1686"}],"version-history":[{"count":4,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/1686\/revisions"}],"predecessor-version":[{"id":1693,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/1686\/revisions\/1693"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media\/1633"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=1686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/categories?post=1686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/tags?post=1686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}