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Topology and shape optimization of dissipative and hybrid mufflers

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Topology and shape optimization of dissipative and hybrid mufflers

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dc.contributor.author Ferrándiz-Catalá, Borja es_ES
dc.contributor.author Denia, F. D. es_ES
dc.contributor.author Martínez Casas, José es_ES
dc.contributor.author Nadal, Enrique es_ES
dc.contributor.author Ródenas, Juan José es_ES
dc.date.accessioned 2021-11-05T14:09:01Z
dc.date.available 2021-11-05T14:09:01Z
dc.date.issued 2020-07 es_ES
dc.identifier.issn 1615-147X es_ES
dc.identifier.uri http://hdl.handle.net/10251/176354
dc.description.abstract [EN] This article presents a Topology Optimization (TO) method developed for maximizing the acoustic attenuation of a perforated dissipative muffler in the targeted frequency range by optimally distributing the absorbent material within the chamber. The Finite Element Method (FEM) is applied to the wave equation formulated in terms of acoustic pressure (chamber) and velocity potential (central duct, due to the existence of thermal gradients and mean flow) in order to evaluate the acoustic performance of the noise control device in terms of Transmission Loss (TL). Sound propagation through the chamber fibrous material is modelled considering complex equivalent acoustic properties, which vary spatially not only as a function of temperature, but also as a function of the lling density, since non-homogeneous density distributions are considered. The acoustic coupling at the perforated duct is performed by introducing a coordinate-dependent equivalent impedance. The objective function to maximize is expressed as the mean TL in the targeted frequency range. The sensitivities of this function with respect to the filling density of each element in the chamber are evaluated following the standard adjoint method. The Method of Moving Asymptotes (MMA) is used to update the design variables at each iteration of the TO process, keeping the weight of absorbent material equal or lower than a given value, while maximizing attenuation. Additionally, several particular designs inferred from the topology optimization results are analyzed. For example, the sizing optimization of a number of rings is carried out simultaneously with the aforementioned TO process (density layout). A reactive chamber is added in order to evaluate the TL of a hybrid muffler and its shape optimization is also carried out simultaneously with the aforementioned TO. Results show an increase in the muffler's mean TL at target frequencies, for all cases under study, while the amount of absorbent material used is maintained or even reduced. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Structural and Multidisciplinary Optimization es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Muffler es_ES
dc.subject Acoustic attenuation es_ES
dc.subject Temperature gradient es_ES
dc.subject Topology optimization es_ES
dc.subject Transmission loss es_ES
dc.subject Absorbent material es_ES
dc.subject.classification INGENIERIA MECANICA es_ES
dc.title Topology and shape optimization of dissipative and hybrid mufflers es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s00158-020-02490-x es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/DPI2017-89816-R/ES/MODELADO PERSONALIZADO DE LA RESPUESTA DEL TEJIDO OSEO DE PACIENTES A PARTIR DE IMAGENES 3D MEDIANTE MALLADOS CARTESIANOS DE ELEMENTOS FINITOS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GENERALITAT VALENCIANA//PROMETEO%2F2016%2F007//MODELADO NUMERICO AVANZADO EN INGENIERIA MECANICA/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TRA2017-84701-R/ES/DESARROLLO DE UN MODELO INTEGRAL DE INTERACCION VEHICULO%2FVIA EN CURVA PARA LA REDUCCION DEL IMPACTO ACUSTICO DEL TRANSPORTE FERROVIARIO/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Ferrándiz-Catalá, B.; Denia, FD.; Martínez Casas, J.; Nadal, E.; Ródenas, JJ. (2020). Topology and shape optimization of dissipative and hybrid mufflers. Structural and Multidisciplinary Optimization. 62(1):269-284. https://doi.org/10.1007/s00158-020-02490-x es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s00158-020-02490-x es_ES
dc.description.upvformatpinicio 269 es_ES
dc.description.upvformatpfin 284 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 62 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\396673 es_ES
dc.contributor.funder GENERALITAT VALENCIANA es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
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dc.subject.ods 09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación es_ES


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