{"id":74999,"date":"2015-11-25T10:11:01","date_gmt":"2015-11-25T09:11:01","guid":{"rendered":"http:\/\/ivmtech.it\/?page_id=74999"},"modified":"2023-07-17T13:26:51","modified_gmt":"2023-07-17T11:26:51","slug":"vams-ubm","status":"publish","type":"page","link":"https:\/\/ivmtech.it\/fr\/prodotti\/vams-ubm\/","title":{"rendered":"VAMS-UBM"},"content":{"rendered":"<p>[vc_row][vc_column][vc_custom_heading text=&#8221;Vibration Attenuation Monitoring System for Under Ballast Mats &#8211; VAMS-UBM&#8221; font_container=&#8221;tag:h2|text_align:left|color:%23111111&#8243; use_theme_fonts=&#8221;yes&#8221; el_class=&#8221;style3&#8243; css=&#8221;.vc_custom_1455539036259{margin-bottom: 10px !important;}&#8221;][vc_row_inner css=&#8221;.vc_custom_1448360454152{margin-bottom: 0px !important;}&#8221;][vc_column_inner][vc_column_text]<img style=\"float: left; margin-right: 15px; width: 100%; max-width: 555px;\" src=\"http:\/\/ivmtech.it\/wp-content\/uploads\/2015\/11\/tappetino-strumentato-2.jpg\" alt=\"\" \/><\/p>\n<p>L\u2019exploitation d\u2019une ligne m\u00e9tro souterrain dans une agglom\u00e9ration urbaine provoque des vibrations vers l\u2019ext\u00e9rieur. Cela repr\u00e9sente un probl\u00e8me pour les r\u00e9cepteurs existants, \u00e0 partir des sites habit\u00e9s (troubles aux personnes), b\u00e2timents destin\u00e9s aux activit\u00e9s sensibles aux vibrations (ex. h\u00f4pitaux) jusqu\u2019aux b\u00e2timents pr\u00e9sentant un int\u00e9r\u00eat historique et culturel qui sont, de nature, sensibles aux vibrations (constructions traditionnelles en brique). L\u2019un des moyens le plus utilis\u00e9 pour les nouvelles lignes est l\u2019emploi de particuliers tapis anti-vibrations plac\u00e9s entre l\u2019armement (voie, traverses et ballast) et la structure de la galerie afin d\u2019amortir et \u00e9liminer les vibrations d\u00e9rangeantes. Toutefois, avec le temps ces syst\u00e8mes sont soumis \u00e0 d\u00e9t\u00e9rioration ne pouvant pas s\u2019\u00e9tablir \u00e0 l\u2019avance, surtout quand les conditions r\u00e9elles ne sont pas les m\u00eames que celles id\u00e9ales des laboratoires.<br \/>\nLe syst\u00e8me <strong>VAMS-UBM <\/strong>se compose de couples de acc\u00e9l\u00e9rom\u00e8tres \u00e0 technologie MEMS mis sur le m\u00eame axe, en haut et en bas dans les tapis anti-vibrations. Lorsqu\u2019un convoi du m\u00e9tro passe sur la zone o\u00f9 se trouvent les tapis actifs, il y aura une transmission de vibrations de haut (si\u00e8ge ferroviaire) en bas. La variation d\u2019acc\u00e9l\u00e9ration obtenue par les deux capteurs sur le m\u00eame axe, en haut et en bas, est fonction essentiellement des propri\u00e9t\u00e9s \u00e9lastiques du mat\u00e9riel. Avec le temps, si le tapis change ses propri\u00e9t\u00e9s \u00e9lastiques (la gomme tend \u00e0 durcir) \u00e0 cause de l\u2019usure, cette transmission d\u2019ondes vibratoires doit changer n\u00e9cessairement. Donc, on peut associer une d\u00e9gradation \u00e9ventuelle du syst\u00e8me \u00e0 cette variation.<\/p>\n<p>[\/vc_column_text][vc_single_image image=&#8221;75197&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][vc_column_text]<\/p>\n<p style=\"text-align: justify;\">Le syst\u00e8me fonctionne depuis 2014 sur la ligne A, Flaminio \u2013 Lepanto, du M\u00e9tro de Roma. Il permet :<\/p>\n<ul>\n<li style=\"text-align: justify;\">la surveillance dans le temps de la d\u00e9gradation des tapis anti-vibrations\u00a0;<\/li>\n<li>d\u00e9tection de signaux d\u2019anomalie li\u00e9s aux ph\u00e9nom\u00e8nes de contact roue-rail ;<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Outre la surveillance de l\u2019att\u00e9nuation des vibrations au moyen des tapis, la fonctionnalit\u00e9 du syst\u00e8me VAMS-UBM peut s\u2019\u00e9largir \u00e0 travers l\u2019installation d\u2019acc\u00e9l\u00e9rom\u00e8tres suppl\u00e9mentaires au dehors du tapis anti-vibrants pour mesurer les vibrations dans les points environnants. Par exemple, sur la ligne A Flaminio-Lepanto du m\u00e9tro de Rome il y a deux acc\u00e9l\u00e9rom\u00e8tres par zone active, sur le c\u00f4t\u00e9 et sur la vo\u00fbte de la galerie, soit pour la voie unique soit pour la voie double.<\/p>\n<p>[\/vc_column_text][vc_single_image image=&#8221;75196&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner css=&#8221;.vc_custom_1448443348973{margin-top: 15px !important;}&#8221;][vc_column_inner][vc_custom_heading text=&#8221;BRVET ITALIEN ET EUROP\u00c9EN&#8221; font_container=&#8221;tag:h2|text_align:left|color:%23111111&#8243; use_theme_fonts=&#8221;yes&#8221; el_class=&#8221;style3&#8243; css=&#8221;.vc_custom_1448443111946{margin-bottom: 10px !important;}&#8221;][vc_column_text]<\/p>\n<p style=\"text-align: justify;\"><strong>Titre:<\/strong> <em>Dispositivo attenuatore di vibrazioni e procedimento per valutare le prestazioni di detto dispositivo<\/em> (Dispositif pour att\u00e9nuer les vibrations et proc\u00e9dure pour \u00e9valuer les prestations de tel dispositif)<br \/>\n<strong>D\u00e9livrance de brevet italien:<\/strong>\u00a03 Avril 2012\u00a0 &#8211; brevet n. 0001392956<br \/>\n<strong>D\u00e9livrance de brevet europ\u00e9en:<\/strong>\u00a06 Mai 2015 &#8211; brevet n. 2218934<\/p>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner css=&#8221;.vc_custom_1688050743237{margin-right: 0px !important;margin-left: 0px !important;padding-top: 15px !important;padding-bottom: 15px !important;background-color: #ffd200 !important;}&#8221;][vc_column_inner width=&#8221;5\/6&#8243;][vc_custom_heading text=&#8221;T\u00e9l\u00e9chargez la documentation du produit VAMS-UBM&#8221; font_container=&#8221;tag:h3|font_size:18|text_align:left|color:%23111111|line_height:1&#8243; use_theme_fonts=&#8221;yes&#8221; css=&#8221;.vc_custom_1456154028522{padding-left: 30px !important;}&#8221;][\/vc_column_inner][vc_column_inner width=&#8221;1\/6&#8243; css=&#8221;.vc_custom_1448357100884{margin-top: -15px !important;}&#8221;][vc_btn title=&#8221;Plaquette&#8221; style=&#8221;outline&#8221; shape=&#8221;square&#8221; color=&#8221;black&#8221; align=&#8221;center&#8221; link=&#8221;url:http%3A%2F%2Fivmtech.it%2Fwp-content%2Fuploads%2Fbrochures%2F2015%2FBrochureVAMSUBM_ENG.pdf||&#8221;][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=&#8221;20px&#8221;][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1448019018552{margin-bottom: 0px !important;border-top-width: 1px !important;padding-top: 50px !important;padding-bottom: 50px !important;background-color: #eeeeee !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;border-top-color: #dddddd !important;border-top-style: solid !important;}&#8221; el_class=&#8221;align-right&#8221;][vc_column width=&#8221;2\/3&#8243;][vc_custom_heading text=&#8221;Vous n\u2019\u00eates pas s\u00fbr de la solution parfaite pour vos besoins ?&#8221; font_container=&#8221;tag:h3|font_size:18|text_align:left|color:%23111111&#8243; use_theme_fonts=&#8221;yes&#8221; css=&#8221;.vc_custom_1455550101582{margin-top: 10px !important;}&#8221;][\/vc_column][vc_column width=&#8221;1\/3&#8243;][thememove_button text=&#8221;CONTACTEZ-NOUS !&#8221; url=&#8221;http:\/\/ivmtech.it\/contatti\/&#8221;][\/vc_column][\/vc_row]<\/p>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_custom_heading text=&#8221;Vibration Attenuation Monitoring System for Under Ballast Mats &#8211; VAMS-UBM&#8221; font_container=&#8221;tag:h2|text_align:left|color:%23111111&#8243; use_theme_fonts=&#8221;yes&#8221; el_class=&#8221;style3&#8243; css=&#8221;.vc_custom_1455539036259{margin-bottom: 10px !important;}&#8221;][vc_row_inner css=&#8221;.vc_custom_1448360454152{margin-bottom: 0px !important;}&#8221;][vc_column_inner][vc_column_text] [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":79048,"parent":74861,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.9 - 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