Results 221 to 230 of about 23,781 (259)

LARGE DEFLECTION ANALYSIS OF UNIFORMLY LOADED ANNULAR MEMBRANES

AIAA Journal, 1963
An iterative technique is employed to obtain approximate solutions to Foppl's nonlinear membrane equations. Four uniformly loaded rotationally symmetric membranes are examined: A) an annulus fixed at both edges, B) an annulus fixed at the outer edge with a rigid plug in the interior, C) an annulus fixed at the outer edge and free of tractions at the ...
Goldberg, Martin A., Pifko, Allan B.
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Harmonic properties of the annular membrane

The Journal of the Acoustical Society of America, 1979
Properties of a vibrating annular membrane are analyzed mathematically and numerically to investigate the relative harmonicity of the higher-order modes compared with the fundamental mode. The harmonicity depends on the zeros of a cross-product of Bessel functions.
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Core‐annular flow of liquid membrane emulsion

AIChE Journal, 1994
AbstractA modeling and experimental study of the core‐annular flow (CAF) was carried out with a viscous liquid membrane emulsion as the core and an aqueous solution as the annulus. A hydrodynamic model has been developed for stable CAF with a centered, nondeformable core surrounded by a turbulent aqueous annulus with or without a drag reducer.
W. S. Ho, N. N. Li
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Axisymmetric isospectral annular plates and membranes

IMA Journal of Applied Mathematics, 1992
A simpler `conditional' form of the vibrating plate equation for which all the physical parameters may be spatially varying is found when the relationship \(D(1-\nu)\)=constant is satisfied between flexural rigidity and Poisson's ratio. A method of coordinate inversion is used to find a family of inhomogeneous clamped annular plates (with axisymmetric ...
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Exact Vibration Solutions of Nonhomogeneous Circular, Annular and Sector Membranes

Advances in Applied Mathematics and Mechanics, 2012
In this paper, exact vibration frequencies of circular, annular and sector membranes with a radial power law density are presented for the first time. It is found that in general, the sequence of modes may not correspond to increasing azimuthal mode number n. The normalized frequency increases with the absolute value of the power index |n|.
Wang, Chang Yi, Wang, Chien Ming
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Positive Solutions of Annular Elastic Membrane Problems with Finite Rotations

Studies in Applied Mathematics, 1987
Following the study of axisymmetric deformations of annular membranes under a normal surface load on the basis of the Föppl‐Hencky small‐finite‐deflection theory, which has been completed in recent works, the corresponding methods are here generalized as to apply to finite‐deformation problems of the Simmonds‐Libai simplified Reissner equations of ...
Grabmüller, Hans, Pirner, Robert
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FREE VIBRATIONS OF NON-HOMOGENEOUS CIRCULAR AND ANNULAR MEMBRANES

Journal of Sound and Vibration, 2001
A non-homogeneous membrane is a membrane that has variable thickness or material density. Several recent publications deal with the axisymmetric and antisymmetric modes of transverse vibration for a composite doubly connected and solid membrane with constant or variable density. In this paper, exact solutions for both the axisymmetric and antisymmetric
M. JABAREEN, M. EISENBERGER
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Dual Membrane Annular Hellical Suppressors in Ion Chromatography

Analytical Chemistry, 1985
A dual membrane annular helical configuration is shown to be a highly efficient low dispersion suppressor for ion chromatography. The device contains one filament-filled membrane tube inserted inside another closely fitting membrane tube of the same type.
Purnendu K. Dasgupta, RQuin. Bligh, Marita A. Mercurio   +2 more
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Finite transform solution of the vibrating annular membrane

Journal of Sound and Vibration, 1967
Vibrating annular membrane problem, including load per unit area and asymmetry of load and vibration, using finite transform ...
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Forced Vibration of Damped Circular and Annular Membranes

Transactions of the Society of Rheology, 1971
The response of circular and annular membranes to sinusoidal vibration is described theoretically. In contrast to prior investigations, emphasis is placed here on the forced vibration of membranes with damping, which is accounted for by writing the membrane tension as a complex quantity.
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