{"id":87418,"date":"2018-03-10T00:12:12","date_gmt":"2018-03-10T00:12:12","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/ondas-de-interaccion-producidas-por-la-difusion-acustica-de-dos-esferas-elasticas\/"},"modified":"2018-03-10T00:12:12","modified_gmt":"2018-03-10T00:12:12","slug":"ondas-de-interaccion-producidas-por-la-difusion-acustica-de-dos-esferas-elasticas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/ondas-de-interaccion-producidas-por-la-difusion-acustica-de-dos-esferas-elasticas\/","title":{"rendered":"Ondas de interaccion producidas por la difusion acustica de dos esferas elasticas"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Molero Alonso Adriana Carla <\/strong><\/h2>\n<p>Este trabajo de investigaci\u00f3n aborda el problema de la interacci\u00f3n entre dos esferas el\u00e1sticas a partir de la difusi\u00f3n ac\u00fastica(scattering en la literatura anglosajona). El estudio se ha centrado en un an\u00e1lisis te\u00f3rico que resuelve por m\u00e9todos anal\u00edticos el problema en condiciones de campo lejano y materiales el\u00e1sticos, y en ensayos experimentales con el objetivo de demostrar la existencia e importancia de \u00e9ste fen\u00f3meno.  la soluci\u00f3n es funci\u00f3n de variables referidas al material y geometria de la esfera(tama\u00f1o, constante el\u00e1sticas, densidad y velocidad de propagaci\u00f3n de capo ac\u00fastico), referidas a la posici\u00f3n de estudio del campo (distancia y posici\u00f3n angular) a trav\u00e9s de las funciones de legendre y haenkel; las referidas al campo incidente (amplitud); y las referidas al rango de ka como arugumento de las funciones esf\u00e9ricas de bessel y haenkel de primer y segundo orden y de sus derivadas hasta tercer grado.  un estudio te\u00f3rico basado en la soluci\u00f3n obtenida se aplica a esferas de acero y resinas. Concluye que para ciertos ka, normalmente bajos, kae[1-4]domina un \u00fanico modo de difusi\u00f3n, dando lugar a una distribuci\u00f3n en \u00e1ngulo simple dipolar, y a partir de un determinada ka(ka=4)n eb adelante, existe la contribuci\u00f3n de otros t\u00e9rminos, de manera que la distribuci\u00f3n en \u00e1ngulo tiende a focalizarse en el direcci\u00f3n de incidencia del campo. La raz\u00f3n entre la amplitud incidente y el m\u00e1ximo de amplitud de presi\u00f3n ac\u00fastica difundida de 2\u00c2\u00ba orden se mantiene constante en todo el entorno de la esfera para ambos materiales.  experimentalmente se ha determinado el patr\u00f3n de directividad de una esfera aislada. El resultado est\u00e1 de acuerdo con la tendencia general de los patrones de una esfera aislada, de car\u00e1cter sim\u00e9trico y unidireccional, y presencia de l\u00f3bulos secundarios de amplitud inferior.  se ha logrado aislar el campo procedente de la difusi\u00f3n de primer orden del procedente de la difusi\u00f3n de 2\u00c2\u00ba o<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Ondas de interaccion producidas por la difusion acustica de dos esferas elasticas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Ondas de interaccion producidas por la difusion acustica de dos esferas elasticas <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Molero Alonso Adriana Carla <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/11\/2000<\/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>Rafael Carb\u00f3 Fit\u00e9<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: elisa Buforn <\/li>\n<li> Montero de espinosa feijoo Francisco (vocal)<\/li>\n<li>amable Lopez pi\u00f1eiro (vocal)<\/li>\n<li>cleofe Campos pozuelo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Molero Alonso Adriana Carla Este trabajo de investigaci\u00f3n aborda el problema de la interacci\u00f3n entre dos esferas [&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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