Memorias de investigación
Ponencias en congresos:
Comparison of numerical models for vibro-acoustic analysis of structural panels in low modal density range engaging air layers
Año:2012
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
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.
Internacional
Si
Nombre congreso
12th European Conference on Space Structures, Materials & Environmental Testing?
Tipo de participación
960
Lugar del congreso
Noordwijk, The Netherlands
Revisores
Si
ISBN o ISSN
978-92-9092-255-1
DOI
Fecha inicio congreso
20/03/2012
Fecha fin congreso
23/03/2012
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1
Hasta la página
6
Título de las actas
Proceedings
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Vehículos Aeroespaciales