{"id":18366,"date":"2018-06-07T00:00:00","date_gmt":"2018-06-06T22:00:00","guid":{"rendered":"http:\/\/cedrat-technologies.com\/produit\/amelioration-des-actionneurs-piezo-electriques-amplifies-pour-le-controle-actif-des-vibrations\/"},"modified":"2023-07-20T11:22:17","modified_gmt":"2023-07-20T09:22:17","slug":"amelioration-des-actionneurs-piezo-electriques-amplifies-pour-le-controle-actif-des-vibrations","status":"publish","type":"product","link":"https:\/\/cedrat-technologies.com\/fr\/produit\/amelioration-des-actionneurs-piezo-electriques-amplifies-pour-le-controle-actif-des-vibrations\/","title":{"rendered":"Am\u00e9lioration des actionneurs pi\u00e9zo-\u00e9lectriques amplifi\u00e9s pour le contr\u00f4le actif des vibrations"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Les actionneurs pi\u00e9zo\u00e9lectriques amplifi\u00e9s (APA\u00ae) de CEDRAT TECHNOLOGIES sont connus pour \u00eatre compacts et particuli\u00e8rement performants dans les applications dynamiques. Les \u00e9volutions r\u00e9centes r\u00e9alis\u00e9es sur les APA\u00ae et l&rsquo;\u00e9lectronique de commande leur permettent d&rsquo;offrir un amortissement actif sup\u00e9rieur \u00e0 celui d&rsquo;une masse d&rsquo;\u00e9preuve magn\u00e9tique en termes de rapport force\/volume au-del\u00e0 de 10Hz. La capacit\u00e9 dynamique de l&rsquo;APA\u00ae a \u00e9t\u00e9 am\u00e9lior\u00e9e gr\u00e2ce \u00e0 une meilleure m\u00e9thode de pr\u00e9charge. La recherche a montr\u00e9 avec succ\u00e8s la possibilit\u00e9 d&rsquo;atteindre un niveau de force dynamique \u00e9lev\u00e9 similaire \u00e0 la force statique bloqu\u00e9e de l&rsquo;actionneur pi\u00e9zo\u00e9lectrique. Ce progr\u00e8s technique, associ\u00e9 \u00e0 un mouvement amplifi\u00e9, permet de g\u00e9n\u00e9rer une charge de masse \u00e0 haute r\u00e9sistance m\u00e9canique \u00e0 une fr\u00e9quence relativement basse. Il produit une force sup\u00e9rieure \u00e0 100N dans un volume de \u00d840x75mm dans une plage de [100-300Hz]. Cet article pr\u00e9sente les utilisations pertinentes de l&rsquo;APA\u00ae pour l&rsquo;amortissement actif dans les applications d&rsquo;usinage. Plusieurs \u00e9tudes de cas d&rsquo;usinage sont rapport\u00e9es, int\u00e9grant des actionneurs pi\u00e9zo\u00e9lectriques amplifi\u00e9s dans la t\u00eate de la broche.<br \/>\ndans la t\u00eate de la broche, \u00e0 l&rsquo;int\u00e9rieur de l&rsquo;outil de coupe ou \u00e0 c\u00f4t\u00e9 de la pince de la pi\u00e8ce \u00e0 usiner.<\/p>\n","protected":false},"featured_media":14776,"comment_status":"closed","ping_status":"open","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"yes"},"product_brand":[],"product_cat":[1383,1385,1413,1491,1497,1464],"product_tag":[],"class_list":{"0":"post-18366","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-actionneurs-lineaires","7":"product_cat-actionneurs-piezo-fr","8":"product_cat-controle-actif-de-vibration","9":"product_cat-domaine-fr","10":"product_cat-productique-machine-outil-fr","11":"product_cat-publications-fr","13":"first","14":"instock","15":"downloadable","16":"virtual","17":"purchasable","18":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/18366","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/comments?post=18366"}],"version-history":[{"count":0,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product\/18366\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media\/14776"}],"wp:attachment":[{"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/media?parent=18366"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_brand?post=18366"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_cat?post=18366"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cedrat-technologies.com\/fr\/wp-json\/wp\/v2\/product_tag?post=18366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}