{"id":821,"date":"2022-03-03T07:57:26","date_gmt":"2022-03-03T06:57:26","guid":{"rendered":"https:\/\/spectraldynamics.eu\/?post_type=faq&p=821"},"modified":"2024-01-08T15:31:46","modified_gmt":"2024-01-08T14:31:46","slug":"why-do-i-need-a-control-system-for-my-shaker","status":"publish","type":"faq","link":"https:\/\/spectraldynamics.eu\/fr\/technical-blog\/why-do-i-need-a-control-system-for-my-shaker\/","title":{"rendered":"Pourquoi associer un syst\u00e8me de contr\u00f4le au vibrateur ?"},"content":{"rendered":"
Le syst\u00e8me de contr\u00f4le est la partie du syst\u00e8me global dont la fonction est de maintenir l'entr\u00e9e prescrite dans l'article de test test\u00e9.<\/p>\n\n\n\n
C'est le syst\u00e8me de contr\u00f4le informatique qui re\u00e7oit les signaux d'entr\u00e9e des transducteurs mont\u00e9s sur l'article \u00e0 tester et fournit le signal de sortie pour piloter le syst\u00e8me de secouage.<\/p>\n\n\n
\n<\/figure><\/div>\n\n\n
Un contr\u00f4le pr\u00e9cis n\u00e9cessite une compensation des caract\u00e9ristiques dynamiques de l'agitateur, de l'appareil et de l'article d'essai. Il est encore compliqu\u00e9 par un comportement non lin\u00e9aire d\u00fb aux actionneurs hydrauliques ou \u00e0 la dynamique structurelle variable lorsque le niveau d'excitation change.<\/p>\n\n\n\n
Si le test \u00e9tait un test sinuso\u00efdal balay\u00e9 comme indiqu\u00e9 ci-dessous\u00a0:<\/p>\n\n\n\n<\/figure>\n\n\n\n
et la r\u00e9ponse non lin\u00e9aire de la fixation du produit ont \u00e9t\u00e9 <\/p>\n\n\n\n<\/figure>\n\n\n\n
La sortie du contr\u00f4leur devrait \u00eatre comme ci-dessous pour reproduire le test requis. <\/p>\n\n\n\n<\/figure>\n\n\n\n
<\/p>","protected":false},"excerpt":{"rendered":"
Le syst\u00e8me de contr\u00f4le est la partie du syst\u00e8me global dont la fonction est de maintenir l'entr\u00e9e prescrite dans l'article de test test\u00e9.<\/p>","protected":false},"featured_media":263,"comment_status":"closed","ping_status":"closed","template":"","category_faq":[12],"acf":[],"yoast_head":"\n
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