Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Ziphius cavirostris bio inspired acoustic antenna. Finite element analysis and experimental validation
Year:2016
Research Areas
  • Engineering
Information
Abstract
One way to amplify an incoming signal is to design a receiver that couples with the signal frequency. In this study a resonant system made of a belt, one part exposed to the incoming signal and the other part inserted in a protected cavity is investigated. The cavity is shaped like a tapered horn in order to obtain maximum amplification at the horn tip. A finite element model based on displacement fields for the acoustic fluid and the belt is developed. The moving surfaces are coupled in such a way that the coupled stiffness and mass matrices are symmetric. Different resulting coupling modes are analysed. A prototype is constructed in order to verify the numerical results. The experimental and numerical results agree to within 6%. The desired amplification inside the cavity is obtained and the time exposure necessary to reach a stationary wave inside the cavity is measured. The design is a simplified, bio inspired, representation of a Ziphius cavirostris lower jaw bone and its surrounding fat cavity.
International
Si
JCR
Si
Title
Applied Acoustics
ISBN
0003-682X
Impact factor JCR
1,068
Impact info
Datos JCR del año 2013
Volume
106
doi:10.1016/j.apacoust.2015.12.016
Journal number
From page
135
To page
143
Month
MAYO
Ranking
Participants
  • Autor: Viana L. Guadalupe (Universidad de La Laguna)
  • Autor: Carmelo Militello (Universidad de La Laguna)
  • Autor: Manuel Recuero Lopez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Investigación en Instrumentación y Acústica Aplicada (I2A2)
  • Departamento: Ingeniería Mecánica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)