On forced vibrations of composite circular membranes

    Abstract The problem of the free vibrations of circular membranes consisting of any finite number of concentric parts from different materials has been solved quite generally in our former paper [1]. The present considerations are devoted to some new questions in the field of the forced vibrations of composite circular membranes.

    • Published in: Czechoslovak Journal of Physics · 1963Authors: V VodickaAbout: Finite set[PDF]
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    CDRO MEMBRANE SYSTEMS: Circular Disc Reverse Osmosis .

    CDRO MEMBRANE SYSTEMS: Circular Disc Reverse Osmosis (CDRO) RO TECHNOLOGY Reverse Osmosis Technology with spiral wound membrane is repeatedly unsuccessful in effluent and wastewater treatment due to scaling and fouling of membranes. Membranes need vast pre-treatment solutions for the removal of suspended & biological

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    Natural Frequencies and Mode Shapes for Vibrations of ...

    vibrations of rectangular and circular membranes by using COMSOL software. In the simulation procedure, two rectangular and one circular membranes have been modeled for extracting the natural frequencies and mode shapes during vibrations. Dimensions of the first and second rectangles are 4 by 2 ft. and 4 by 3 ft. respectively.

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    Mathematical Problems in Engineering - hindawi

    This paper presents the nonlinear free vibration analysis of axisymmetric polar orthotropic circular membrane, based on the large deflection theory of membrane and the principle of virtual displacement. We have derived the governing equations of nonlinear free vibration of circular membrane and solved them by the Galerkin method and the Bessel function to obtain the generally exact formula of ...

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    Stretched homoporous composite membranes with elliptic ...

    membranes still have the UF performance, as high fluxes might be caused by defects appearing during stretching. The membranes were first tested with bovine serum albumin (BSA). The BSA retention rate was measured as 26.8% for the pristine composite membrane with circular pores. With the .

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    Free vibration of composite membranes with arbitrary shape ...

    The general equation for finding the natural frequencies of the composite membranes has been presented. As examples, numerical calculations have been carried out for composite polygonal membranes, composite elliptical membranes and composite circular membranes with eccentric circular boundaries.

    Cited by: 4
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    Resonant responses and chaotic dynamics of composite ...

    Although the continuum circular cylindrical shell model [6,7] and the membrane model [] have been given respectively, their researches only consider the ring truss antenna or three-way mesh structure.Liu et al. [] simplified the circular mesh antenna to a composite laminated circular cylindrical shell with the membranes at both ends.They studied the nonlinear oscillations of this model in the ...

    Cited by: 17
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    FUNDAMENTAL FREQUENCY OF A WAVY NON-HOMOGENEOUS CIRCULAR .

    Read "FUNDAMENTAL FREQUENCY OF A WAVY NON-HOMOGENEOUS CIRCULAR MEMBRANE, Journal of Sound and Vibration" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    • Published in: Journal of Sound and Vibration · 1999Authors: C Y WangAbout: Membrane · Structural acoustics · Equations of motion · Natural frequency · Fundame.[PDF]
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    (PDF) Transverse vibrations of composite membranes of ...

    5. NUMERICAL RESULTS The variational procedure was applied first to the case of a circular composite membrane (see Figure 2) in order to test the accuracy o f the proposed approach. The results (upper bounds) are shown in Table 1 and compared with the exact fundamental frequency coefficients obtained by Spence and Horgan [2].

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    Free vibration analysis of composite, circular annular ...

    Free vibration analysis of composite, circular annular membranes using wave propagation approach. Author links open overlay panel Arian Bahrami Amir Teimourian. Show more. ... Moreover, Laura et al. presented an exact solution for the axisymmetric vibration modes of composite, circular annular membranes.

    Cited by: 13
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    Modes and Nodes — The Well-Tempered Timpani

    Unlike one-dimensional vibrating air columns and vibrating strings, vibrating circular membranes are two-dimensional. A two-dimensional circular membrane can have many modes of vibration occurring simultaneously; symmetrical (concentric modes), asymmetrical (diametric modes), and composite modes (which are combinations of the two).

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    Membranes | Free Full-Text | Characteristics of Gas ...

    Porous, porous/gutter layer and porous/gutter layer/selective layer types of membranes were investigated for their gas transport properties in order to derive an improved description of the transport performance of thin film composite membranes (TFCM). A model describing the individual contributions of the different layers' mass transfer resistances was developed.

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    Fabrication and Characterization of Magnetic Nanoparticle ...

    FABRICATION AND CHARACTERIZATION OF MAGNETIC NANOPARTICLE COMPOSITE MEMBRANES A Thesis Presented to the Graduate School of Clemson University In Partial Fulfillment of the Requirements for the Degree Master of Science Materials Science and Engineering by Akeem Armand Cruickshank December 2014 Accepted by: Dr. M. S. Kennedy, Committee Co-Chair

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    Fundamental frequency of composite circular membranes with ...

    Fibre Science and Technology 21 (1984) 267-275 Fundamental Frequency of Composite Circular Membranes with Boundary Disturbances P. A. A. Laura,* G. S/mchez Sarmiento,t P. Verniere de Irassar,* D. Hill:~ and J. MazumdarJ/ * Institute of Applied Mechanics, 8111 Puerto Belgrano Naval Base (Argentina) t Empresa Nuclear Argentina de Centrales E16ctricas, Buenos Aires (Argentina) :~ .

    Cited by: 1
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    Nonlinear Dynamics of Composite Laminated Circular ...

    Liu, Tao, Zhang, Wei, Zhang, Yufei, and Wang, Qian. "Nonlinear Dynamics of Composite Laminated Circular Cylindrical Shell With Membranes in Thermal Environment." Proceedings of the ASME 2018 International Design Engineering Technical Conferences and .

    Author: Tao Liu, Wei Zhang, Yufei Zhang, Qian Wang
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    Nonlinear Dynamics of Composite Laminated Circular ...

    This paper is focused on the chaotic dynamics of a composite laminated circular cylindrical shell with radially pre-stretched membranes at both ends and clamped along a generatrix. Based on the two-degree-of-freedom non-autonomous nonlinear equations of this system, the method of multiple scales is employed to obtain the four-dimensional ...

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    Ajit Dhundiraj Kelkar - NASA

    membrane coupling model, and a finite element model to analyze the large deformation behavior of eight-ply quasi-isotropic circular composite plates under impact type point loads are developed. The back face spalling phenomenon in thin composite plates is explained by using the plate-membrane coupling model and the finite element model in

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    TRANSVERSE VIBRATIONS OF COMPOSITE, CIRCULAR ... - .

    Read "TRANSVERSE VIBRATIONS OF COMPOSITE, CIRCULAR ANNULAR MEMBRANES: EXACT SOLUTION, Journal of Sound and Vibration" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    • Published in: Journal of Sound and Vibration · 1998Authors: P A A Laura · C A Rossit · S La MalfaAffiliation: Universidad Nacional Del SurAbout: Membrane · Composite material · Exact solutions in general relativity
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    FUNDAMENTAL FREQUENCY OF A WAVY NON-HOMOGENEOUS CIRCULAR .

    Read "FUNDAMENTAL FREQUENCY OF A WAVY NON-HOMOGENEOUS CIRCULAR MEMBRANE, Journal of Sound and Vibration" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    • Published in: Journal of Sound and Vibration · 1999Authors: C Y WangAbout: Membrane · Structural acoustics · Equations of motion · Natural frequency · Fundame.
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    Vibration of circular membranes with linearly varying ...

    Feb 07, 2005 · Read "Vibration of circular membranes with linearly varying density along a diameter, Journal of Sound and Vibration" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    • Published in: Journal of Sound and Vibration · 2005Authors: George R BuchananAffiliation: Tennessee Technological UniversityAbout: Vibration · Distributed parameter system[PDF]
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    Free vibration analysis of composite rectangular membranes ...

    Apr 22, 2004 · Read "Free vibration analysis of composite rectangular membranes with a bent interface, Journal of Sound and Vibration" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

    • Published in: Journal of Sound and Vibration · 2004Authors: Sang Wook KangAffiliation: Hansung UniversityAbout: Finite element method · Local system · Natural frequency · Composite material · Vibra.[PDF]
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