Finite Element Formulation and Active Vibration Control Study on Beams Using Smart Constrained Layer Damping (Scld) Treatment

Balamurugan, V.; Potty, Narayanan Sambu

doi:10.1006/jsvi.2001.3804

Cited by 56 publications

(35 citation statements)

References 10 publications

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“…The equations are then converted into an equivalent set of equations in the time domain that bears a standard dynamics form without any convolution integrals. The GHM method was used successfully by Balamurugan and Narayanan [21,22] in the transient finite element analysis of Timoshenko beams possessing viscoelastic layers.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear quasi‐static finite element formulations for viscoelastic Euler–Bernoulli and Timoshenko beams

Payette

Reddy

2009

Numer Methods Biomed Eng

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SUMMARYWeak form finite element models for the nonlinear quasi-static bending and extension of initially straight viscoelastic Euler-Bernoulli and Timoshenko beams are developed using the principle of virtual work. The mechanical properties of the beams are considered to be linear viscoelastic. However, large transverse displacements, moderate rotations and small strains are allowed by retaining the von Kármán strain components of the Green-Lagrange strain tensor in the formulation. The fully discretized finite element equations are developed using the trapezoidal rule in conjunction with a two-point recurrence relation. The resulting finite element equations, therefore, necessitate data storage from the previous time step only, and not the entire deformation history. Membrane locking is eliminated from the Euler-Bernoulli formulation through the use of selective reduced Gauss-Legendre quadrature. Membrane and shear locking are both circumvented in the Timoshenko beam finite element by employing a family of high-order Lagrange polynomials. A Newton-Raphson iterative scheme is used to solve the nonlinear finite element equations.

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Section: Introductionmentioning

confidence: 99%

Nonlinear quasi‐static finite element formulations for viscoelastic Euler–Bernoulli and Timoshenko beams

Payette

Reddy

2009

Numer Methods Biomed Eng

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“…Barkanov [24] used finite element analysis software to simulate the transient response of viscoelastic materials. Balamurugan et al [25] elucidated the suppression and control of vibration using smart constrained layer damping (SCLD). Liu et al [26] proposed active CLD and piezoelectrically induced active vibrations to enhance CLD performance, thereby inhibiting the vibration of a motherboard.…”

Section: Journal Of Mechanical Design and Vibrationmentioning

confidence: 99%

Constrained-layer Damping Applied to DCJ Vibration Isolation Design

Luo¹

2017

JMDV

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A dual piezoelectric cooling jet (DCJ) is an innovative cooling device that uses piezoelectric materials to generate high-speed vibrations, thereby causing changes in the flow field to achieve heat exchange. Despite its high cooling efficiency, a DCJ transfers vibrations through its supporting base to its peripheral devices. To attenuate vibrations from DCJs, this study employed constrained-layer damping (CLD)-a technique for suppressing vibrations-to develop a base for cooling devices and to propose a C-DCJ model. ANSYS simulation of the vibrations of a DCJ and the C-DCJ suggested that, under the same vibration conditions and with the same levels of cooling efficiency, the amplitude and acceleration of the base on the C-DCJ were 30%-50% lower than that on the DCJ. Thus, the proposed C-DCJ effectively isolated vibration transfer.

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“…A SCLD with sufficiently large shear modulus (related to k) could outperform both PCLD and purely active configurations. large values of k were difficult to achieve and maintain in most viscoelastic materials, a compro mise had to be made in the choice of suitable k keeping in mind that SCLD designs were more reliable, robust and fail-safe when co mpared to purely active designs [2] .…”

Section: Literature Reviewmentioning

confidence: 99%

Vibration Control of Beam With Active Constrained Layer Damping

2015

IJAERD

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Finite Element Formulation and Active Vibration Control Study on Beams Using Smart Constrained Layer Damping (Scld) Treatment

Cited by 56 publications

References 10 publications

Nonlinear quasi‐static finite element formulations for viscoelastic Euler–Bernoulli and Timoshenko beams

Nonlinear quasi‐static finite element formulations for viscoelastic Euler–Bernoulli and Timoshenko beams

Constrained-layer Damping Applied to DCJ Vibration Isolation Design

Vibration Control of Beam With Active Constrained Layer Damping

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