Influence of a liquid on the natural frequencies of almost circular plates

Gascón Pérez, Manuel y Garcia-Fogeda Nuñez, Pablo (2014). Influence of a liquid on the natural frequencies of almost circular plates. "International Journal of Applied Mechanics", v. 6 (n. 5); pp.. ISSN 1758-826X. https://doi.org/10.1142/S1758825114500525.

Descripción

Título: Influence of a liquid on the natural frequencies of almost circular plates
Autor/es:
  • Gascón Pérez, Manuel
  • Garcia-Fogeda Nuñez, Pablo
Tipo de Documento: Artículo
Título de Revista/Publicación: International Journal of Applied Mechanics
Fecha: Octubre 2014
Volumen: 6
Materias:
Palabras Clave Informales: Elliptical plate; fluid-structure; natural frequencies; fluid influence
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Aeronaves y Vehículos Espaciales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In this work, the influence of the surrounding fluid on the dynamic characteristics of almost circular plates is investigated. First the natural frequencies and normal modes for the plates in vacuum are calculated by a perturbation procedure. The method is applied for the case of elliptical plates with a low value of eccentricity. The results are compared with other available methods for this type of plates with good agreement. Next, the effect of the fluid is considered. The normal modes of the plate in vacuum are used as a base to express the vibration mode of the coupled plate-fluid system. By applying the Hankel transformation the nondimensional added virtual mass 2 increment (NAVMI) are calculated for elliptical plates. Results of the NAVMI factors and the effect of the fluid on the natural frequencies are given and it is shown that when the eccentricity of the plate is reduced to zero (circular plate) the known results of the natural frequencies for circular plates surrounded by liquid are recovered.

Más información

ID de Registro: 35654
Identificador DC: http://oa.upm.es/35654/
Identificador OAI: oai:oa.upm.es:35654
Identificador DOI: 10.1142/S1758825114500525
URL Oficial: http://www.worldscientific.com/doi/abs/10.1142/S1758825114500525
Depositado por: Memoria Investigacion
Depositado el: 16 Jun 2015 18:34
Ultima Modificación: 16 Jun 2015 18:34
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