Vibration and damping analysis of conical shells with constrained damping treatment

Ramesh, T.; Ganesan, N.

doi:10.1016/0168-874x(93)90003-9

Cited by 13 publications

(2 citation statements)

References 11 publications

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“…Due to increasing application of high damped and lightweight structures, significant progress has been recently achieved in the dynamic analysis of such structures [1][2][3]. However, majority analyses use a complex frequency-independent dynamic modulus to describe the rheological behaviour of viscoelastic materials [4][5][6]. But from engineering practice [7] it is widely known, that the storage and loss moduli of real viscoelastic materials are strongly dependent from the frequency and temperature.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modelling of Frequency-Dependent Dynamic Behaviour of Viscoelastic Composite Structures

Barkanov

Chate

2004

Advanced Composites Letters

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Finite element analysis of sandwich and laminated composite structures with viscoelastic layers is performed. The present implementation gives the possibility to preserve the frequency dependence for the storage and loss moduli of viscoelastic materials exactly. Moreover, the storage and loss moduli in this case are defined directly in the frequency domain by an experimental technique for each material and can be used after curve fitting procedure in the numerical analysis. Damping characteristics of viscoelastic composite structures are evaluated by the energy method, the method of complex eigenvalues, from the resonant peaks of the frequency response function and using the steady state vibrations. Numerical examples are given to demonstrate the validity and application of the approaches developed for the free vibration, frequency and transient response analyses.

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Section: Introductionmentioning

confidence: 99%

Finite Element Modelling of Frequency-Dependent Dynamic Behaviour of Viscoelastic Composite Structures

Barkanov

Chate

2004

Advanced Composites Letters

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“…EI-Raheb and Wagner (1993) extended their earlier techniques (1986) to analyze the damping of a toroidal segment of shell included in configurations enclosing an acoustic fluid. In Ramesh and Ganesan (1993) a finite element analysis of vibration and damping of conical shells with a constrained viscoelastic damping treatment was given.…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis of Viscoelastically Damped Sandwich Shells

1996

Shock and Vibration

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The simplified governing equations and corresponding boundary conditions of vibration of viscoelastically damped unsymmetrical sandwich shells are given. The asymptotic solution to the equations is then discussed. If only the first terms of the asymptotic solution of all variables are taken as an approximate solution, the result is identical with that obtained from the modal strain energy method. By taking more terms of the asymptotic solution with successive calculations and use of the Padé approximants method, accuracy of natural frequencies and modal loss factors of sandwich shells can be improved. The lowest three or four natural frequencies and modal loss factors of simply supported cylindrical sandwich shells are calculated.

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AN h–p FINITE ELEMENT VIBRATION ANALYSIS OF OPEN CONICAL SANDWICH PANELS AND CONICAL SANDWICH FRUSTA

Bardell

Langley

Dunsdon

et al. 1999

Journal of Sound and Vibration

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Vibration and damping analysis of conical shells with constrained damping treatment

Cited by 13 publications

References 11 publications

Finite Element Modelling of Frequency-Dependent Dynamic Behaviour of Viscoelastic Composite Structures

Finite Element Modelling of Frequency-Dependent Dynamic Behaviour of Viscoelastic Composite Structures

Vibration Analysis of Viscoelastically Damped Sandwich Shells

AN h–p FINITE ELEMENT VIBRATION ANALYSIS OF OPEN CONICAL SANDWICH PANELS AND CONICAL SANDWICH FRUSTA

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