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Analysis of Intertance Due to the Higher Order Mode Effects in a Sudden Area Discontinuity

Sahasrabudhe, AD and Munjal, ML and Ramu, Anantha S (1995) Analysis of Intertance Due to the Higher Order Mode Effects in a Sudden Area Discontinuity. In: Journal of Sound and Vibration, 185 (3). pp. 515-529.

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Abstract

It is well known that an area discontinuity generates evanescent higher order modes even at low frequencies within the plane wave limit.The effect of these non-planar modes can be accounted for by their inertance effect in the form of a discontinuity inductance expressed as a function of the Karal correction factor. Earlier investigators have provided approximate expressions for this factor based on the analysis of coaxial discontinuities.In this paper, a 3-D finite element analysis is used to verify the results of earlier researchers for the coaxial discontinuities and to develop a simple, accurate and comprehensive expression for the Karal correction factor as a function of radius ratio, frequency and the offset distance for a generalized discontinuity.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 22 Mar 2007
Last Modified: 19 Sep 2010 04:35
URI: http://eprints.iisc.ernet.in/id/eprint/9789

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