{"id":29590,"date":"2004-02-04T00:00:00","date_gmt":"2004-02-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/on-the-modelling-and-dynamic-stiffness-prediction-of-rubber-isolators\/"},"modified":"2004-02-04T00:00:00","modified_gmt":"2004-02-04T00:00:00","slug":"on-the-modelling-and-dynamic-stiffness-prediction-of-rubber-isolators","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/navarra\/on-the-modelling-and-dynamic-stiffness-prediction-of-rubber-isolators\/","title":{"rendered":"On the modelling and dynamic stiffness prediction of rubber isolators"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Nere Gil-negrete Laborda <\/strong><\/h2>\n<p>El trabajo realizado en la presente tesis se centra en el comportamiento no lineal de apoyos de goma y en la propuesta de m\u00e9todos para simular componentes de dicho material sometidos a cargas din\u00e1micas. Debido a que muchos y muy diferentes sistemas utilizan elementos aislantes de caucho para mejorar su comportamiento vibroac\u00fastico, existe una gran necesidad de entender sus propiedades y predecir de forma adecuada su rigidez din\u00e1mica.  el objetivo de esta tesis es, por lo tanto, contribuir al avance de la modelizaci\u00f3n de elementos aisladores de caucho en el rango de 0 a 500hz, considerando la dependencia de las propiedades del material tanto con la frecuencia como con la amplitud de excitaci\u00f3n. Se desea proponer procedimientos de c\u00e1lculo que predigan de forma precisa su rigidez est\u00e1tica y din\u00e1mica y que puedan ser incorporados a paquetes de elementos finitos.  se resumen primero las propiedades m\u00e1s importantes del material. A continuaci\u00f3n se profundiza en los modelos existentes para la elasticidad no lineal, viscoelasticidad y fricci\u00f3n. Se comparan diferentes funciones de energ\u00eda de deformaci\u00f3n para representar las caracter\u00edsticas el\u00e1sticas de la mezcla. se sugiere el uso de la forma de yeoh, debido  a su simplicidad y a su capacidad para extrapolar resultados a modos de deformaci\u00f3n complejos. en lo que al comportamiento dependiente de la frecuencia se refiere, se comparan la viscoelasticidad cl\u00e1sica y la de orden fraccional, al a par que se estudia la utilizaci\u00f3n de modelos de fricci\u00f3n para la dependencia con la amplitud.  se presenta un modelo no-lineal que tiene en cuenta todos los efectos din\u00e1micos del material. El problema de considerar a un mismo tiempo las contribuciones el\u00e1stica, viscoel\u00e1stica y de fricci\u00f3n se solventa separ\u00e1ndolas en tres sumandos diferentes.  La respuesta viscoel\u00e1stica implica un modelo de derivadas fraccionales, mientras que la dependencia con la amplitud se considera a trav\u00e9s de ele<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>On the modelling and dynamic stiffness prediction of rubber isolators<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 On the modelling and dynamic stiffness prediction of rubber isolators <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Nere Gil-negrete Laborda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/04\/2004<\/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>Jordi Vi\u00f1olas Prat<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Mar\u00eda Bastero de eleizalde <\/li>\n<li>Javier Canales abaitua (vocal)<\/li>\n<li>leif Kari (vocal)<\/li>\n<li>Francisco Javier Fernandez nieto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Nere Gil-negrete Laborda El trabajo realizado en la presente tesis se centra en el comportamiento no lineal [&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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