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

Gascón Pérez, Manuel and 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.

Description

Title: Influence of a liquid on the natural frequencies of almost circular plates
Author/s:
  • Gascón Pérez, Manuel
  • Garcia-Fogeda Nuñez, Pablo
Item Type: Article
Título de Revista/Publicación: International Journal of Applied Mechanics
Date: October 2014
ISSN: 1758-826X
Volume: 6
Subjects:
Freetext Keywords: Elliptical plate; fluid-structure; natural frequencies; fluid influence
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (740kB) | Preview

Abstract

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.

More information

Item ID: 35654
DC Identifier: http://oa.upm.es/35654/
OAI Identifier: oai:oa.upm.es:35654
DOI: 10.1142/S1758825114500525
Official URL: http://www.worldscientific.com/doi/abs/10.1142/S1758825114500525
Deposited by: Memoria Investigacion
Deposited on: 16 Jun 2015 18:34
Last Modified: 16 Jun 2015 18:34
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM