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Evaluation of Kinematic Formulations for Viscoelastically Damped Sandwich Beam Modeling
Journal of Sandwich Structures & Materials, 2006For efficiently simulating static and dynamic behaviors of sandwich structures, an accurate kinematic model is essential. This study presents analytical and numerical evaluations of kinematics and theories proposed in the literature. Several types of assumed displacement fields are considered.
Heng Hu +3 more
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Modelling of Viscoelastically Damped Sandwich Beams: A Comparative Study
2005The aim of this paper is to evaluate classical models for sandwich beams. These models are compared in the static and the dynamic fields. In all cases the Finite-Element-based solution is considered as reference.
H. Hu +3 more
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Model accuracy impacts for active damping of a viscoelastic beam
IFAC Proceedings Volumes, 2014Abstract This study concerns the effect of model accuracy on closed loop performance for active damping of vibrations. The system, a viscoelastic cantilever beam, is represented by Euler-Bernoulli beam equations. Standard LQG is used for control design, requiring finite order models. Two such models are produced, one based on truncated modal analysis,
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Free damped vibrations of a viscoelastic oscillator based on Rabotnov’s model
Mechanics of Time-Dependent Materials, 2008Free damped vibrations of a linear viscoelastic oscillator based on Rabotnov’s model involving one fractional parameter and several relaxation (retardation) times are investigated. The analytical solution is obtained in the form of two terms, one of which governs the drift of the system’s equilibrium position and is defined by the quasi-static ...
Yury A. Rossikhin, Marina V. Shitikova
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Acta Mathematica Scientia, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Yanhong, Zhu, Changjiang
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Yanhong, Zhu, Changjiang
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Dynamic model of a viscoelastic vibration-damping material
Building and ReconstructionThe paper proposes a local phenomenological model for the dynamic behavior of a viscoelastic vibration-damping material based on a microcellular polyurethane elastomer. The study is motivated by the need to specify frequency-dependent dynamic material properties in calculations of vibration isolation systems for buildings ...
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Impact of viscoelastic damping properties on vibration response of scale models
The Journal of the Acoustical Society of America, 2019There are many industries that utilized scale models to test the behavior of systems before building full-size structures, such as aircraft, spacecraft, and marine vehicle design. While vibration and acoustic response may not be the only quantities of interest when testing scale models, scale models can be utilized to predict full-scale acoustic ...
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Experimental Validation of Non-Conventional Viscoelastic Models via Equivalent Damping Estimates
Volume 11: Mechanical Systems and Control, 2008Non-conventional rheological models based on non-integer order differential operators can be used to describe the viscoelastic behavior of materials, especially of polymers. These models are usually selected and then validated by means of creep and relaxation tests.
CATANIA, GIUSEPPE, SORRENTINO, SILVIO
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