{"id":16044,"date":"2018-03-09T09:03:28","date_gmt":"2018-03-09T09:03:28","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/control-activo-del-ruido-radiado-por-estructuras-bidimensionales\/"},"modified":"2018-03-09T09:03:28","modified_gmt":"2018-03-09T09:03:28","slug":"control-activo-del-ruido-radiado-por-estructuras-bidimensionales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/control-activo-del-ruido-radiado-por-estructuras-bidimensionales\/","title":{"rendered":"Control activo del ruido radiado por estructuras bidimensionales"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Cuesta Ru\u00edz <\/strong><\/h2>\n<p>El objetivo fundamental de la tesis es el dise\u00f1o y validaci\u00f3n experimental de un sistema de control activo ac\u00fastico estructural (caae), para reducir el ruido de baja frecuencia radiado por una placa delgada en condiciones de contorno simple. Gran parte de la investigaci\u00f3n se dedica al estudio y comparaci\u00f3n experimental de las prestaciones de control que ofrecen diferentes sensores de error, ac\u00fasticos y estructurales puntuales y distribuidos. el trabajo contribuye con el dise\u00f1o te\u00f3rico e implementaci\u00f3n pr\u00e1ctica de un sensor modal, dise\u00f1ado para medir el desplazamiento vol\u00famico de la placa considerada, en un margen de baja frecuencia. Dicho sensor est\u00e1 formado por dos tiras de pvdf en cruz, cuyas geometr\u00edas son proporcionales a las formas propias de la placa, estimadas con la modelizaci\u00f3n de la respuesta estructural del prototipo. La respuesta en frecuencias de dicho sensor, una vez adherido a la estructura, confirma la validez del planteamiento te\u00f3rico realizado para su dise\u00f1o. El prototipo caae optimizado consta de unos componentes ac\u00fasticos-estructurales y electr\u00f3nicos, para reducir la radiaci\u00f3n de campo lejano. Con una fuente primaria de fuerza (vibrador) se excita la placa en resonancia y en vibraci\u00f3n forzada. La se\u00f1al de referencia utilizada para informar al controlador de las caracter\u00edsticas de la vibraci\u00f3n primaria es la propia se\u00f1al de excitaci\u00f3n. Se utiliza la salida de cada uno de los sensores de error citados como funci\u00f3n de coste a minimizar. uno o dos actuadores piezoel\u00e9ctricos dobles, posicionados sim\u00e9tricamente sobre la placa, ejercen la vibraci\u00f3n secundaria para contrarresta la inicial, con el fin de reducir la radiaci\u00f3n ac\u00fastica. El controlador, por medio de algoritmos y filtros de control, procesa las se\u00f1ales de entrada (referencia y error) y genera la se\u00f1al que alimenta las fuentes secundarias. El control caae implementado es satisfactorio en todos los casos analizados y revela que el sens<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Control activo del ruido radiado por estructuras bidimensionales<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Control activo del ruido radiado por estructuras bidimensionales <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Cuesta Ru\u00edz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/03\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Pedro Cobo Parra<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: agust\u00edn Ud\u00edas vallina <\/li>\n<li>Jaime Pfretzschner (vocal)<\/li>\n<li>Carlos Ranz guerra (vocal)<\/li>\n<li> De castro mu\u00f1oz de lucas Manuel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Cuesta Ru\u00edz El objetivo fundamental de la tesis es el dise\u00f1o y validaci\u00f3n experimental de un [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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-4)","background-image":"","background-repeat":"repeat","background-position":"center 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