Comparison of numerical models for vibro-acoustic analysis of structural panels in low modal density range engaging air layers

Chimeno Manguan, Marcos; Martínez-Calvo, B.; Roibás-Millán, E.; Fajardo Sanz, Pablo; Simon, F. y López Díez, Jesús (2012). Comparison of numerical models for vibro-acoustic analysis of structural panels in low modal density range engaging air layers. En: "12th European Conference on Space Structures, Materials & Environmental Testing", 20/03/2012 - 23/03/2012, Noordwijk, The Netherlands. ISBN 978-92-9092-255-1. pp. 1-6.

Descripción

Título: Comparison of numerical models for vibro-acoustic analysis of structural panels in low modal density range engaging air layers
Autor/es:
  • Chimeno Manguan, Marcos
  • Martínez-Calvo, B.
  • Roibás-Millán, E.
  • Fajardo Sanz, Pablo
  • Simon, F.
  • López Díez, Jesús
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 12th European Conference on Space Structures, Materials & Environmental Testing
Fechas del Evento: 20/03/2012 - 23/03/2012
Lugar del Evento: Noordwijk, The Netherlands
Título del Libro: Proceedings
Fecha: 20 Marzo 2012
ISBN: 978-92-9092-255-1
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Vehículos Aeroespaciales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (304kB) | Vista Previa

Resumen

During launch, satellite and their equipment are subjected to loads of random nature and with a wide frequency range. Their vibro-acoustic response is an important issue to be analysed, for example for folded solar arrays and antennas. The main issue at low modal density is the modelling combinations engaging air layers, structures and external fluid. Depending on the modal density different methodologies, as FEM, BEM and SEA should be considered. This work focuses on the analysis of different combinations of the methodologies previously stated used in order to characterise the vibro-acoustic response of two rectangular sandwich structure panels isolated and engaging an air layer between them under a diffuse acoustic field. Focusing on the modelling of air layers, different models are proposed. To illustrate the phenomenology described and studied, experimental results from an acoustic test on an ARA-MKIII solar array in folded configuration are presented along with numerical results.

Más información

ID de Registro: 22916
Identificador DC: http://oa.upm.es/22916/
Identificador OAI: oai:oa.upm.es:22916
URL Oficial: http://www.congrexprojects.com/2012-events/12a06/introduction
Depositado por: Memoria Investigacion
Depositado el: 03 Abr 2014 18:04
Ultima Modificación: 21 Abr 2016 20:52
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM