Abstract
Lightweight plate structures are widely used in many engineering and practical applications. The analysis and design of such structures call for efficient computational tools, since exact analytical solutions for vibrating plates are currently known only for some standard shapes in conjunction with a few basic boundary conditions. The present paper deals with the adoption of a set of eigenfunctions evaluated from a simple structure as a basis for the analysis of plates with both general shape and general boundary conditions in the Rayleigh-Ritz condensation method. General boundary conditions are introduced in the functional of the potential energy by additional terms, and both trigonometric and polynomial interpolation functions are implemented for mapping the shape of the plate in Cartesian coordinates into natural coordinates. Flexural free vibration analysis of different shaped plates is then performed: skew, trapezoid and triangular plates, plates with parabolic edges, elliptic sector and annular plates. The proposed method can also be directly applied to variable thickness plates and non-homogeneous plates, with variable density and stiffness. Purely elastic plates are considered; however the method may also be applied to the analysis of viscoelastic plates. The results are compared to those available in the literature and using standard finite element analysis.
This is a preview of subscription content, log in via an institution.
Preview
Unable to display preview. Download preview PDF.
References
Leissa A.W., “Recent research in plate vibrations: classical theory”, The Shock and Vibration Digest 9 (10), pp. 13-24, 1977.
Durvasula S., “Natural frequencies and modes of clamped skew plates”, American Institute of Aeronautics and Astronautics Journal 7, pp. 1164-1167, 1969.
Babu P.V.T., Reddy D.V., “Frequency analysis of skew orthotropic plates by the finite strip method”, Journal of Sound and Vibration 18 (4-5), pp. 465-474, 1971.
Ramakrishnan R., Kunukkasseril V., “Free vibration of annular sector plates”, Journal of Sound and Vibration 30, pp. 127-129, 1973.
Li W.Y., Cheung Y.K., Tham L.G., “Spline finite strip analysis of general plates”, Journal of Engineering Mechanics 112, pp. 43-54, 1986.
Mizusawa. T., Kajita. T., Naruoka. M., “Analysis of skew plate problems with various constraints”, Journal of Sound and Vibration 73 (4), pp. 575-584, 1980.
Geannakakes G., “Vibration analysis of arbitrarily shaped plates using beam characteristic orthogonal polynomials in the semi-analytical finite strip method”, Journal of Sound and Vibration 137 (2), pp. 283-303, 1990.
Ritz W., “Theorie der transversalschwingungen einer quadratischen Platte mit freien Rändern”, Ann. Physik 28, pp. 737-786, 1909.
Catania G., Sorrentino S., “Rayleigh-Ritz analysis of vibrating plates based on a class of eigenfunctions”. In proceedings of ASME IDETC/CIE, San Diego, USA, August 30 - September 2, 2009.
Catania G., Sorrentino S., “Discrete spectral modelling of continuous structures with fractional derivative viscoelastic behaviour”. In proceedings of ASME IDETC/CIE, Las Vegas, USA, September 4-7, 2007.
Catania G., Fasana A., Sorrentino S., “A condensation technique for the FE dynamic analysis with fractional derivative viscoelastic models”, Journal of Vibration and Control 14 (9-10), pp. 1573-1586, 2008.
Timoshenko S., Young D.H., Weaver W., Vibration problems in engineering, 4th edition, Wiley, New York, USA, 1974.
Cook R.D., Malkus D.S., Plesha M.E., Witt R.J., Concepts and applications of finite element analysis, 4th edition, Wiley, New York, USA, 2002.
Blevins R.D., Formulas for natural frequency and mode shape, Krieger, Malabar, USA, 1979-2001.
Chakraverty S., Vibration of plates, CRC Press, New York, USA, 2009.
Leissa A.W., Vibration of Plates, Nasa SP 160, U.S. Government Printing Office, Washington D.C., USA, 1969.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 Springer Science+Business Media, LLC
About this paper
Cite this paper
Catania, G., Sorrentino, S. (2011). Spectral analysis of vibrating plates with general shape. In: Proulx, T. (eds) Linking Models and Experiments, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9305-2_6
Download citation
DOI: https://doi.org/10.1007/978-1-4419-9305-2_6
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-9304-5
Online ISBN: 978-1-4419-9305-2
eBook Packages: EngineeringEngineering (R0)