Results 141 to 150 of about 1,222 (194)

A far from equilibrium state developed from pulse poling for high performance piezoelectric transducers. [PDF]

Nano Converg
Mervosh MW, Lee JH, Randall CA.
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Approaching the physical limits of specific absorption rate for synthetic antiferromagnetic nanodisks in hyperthermia applications. [PDF]

Biomater Sci
Scheibler S, Wei H, Ackers J, Helbig S, Koraltan S, Peremadathil-Pradeep R, Krupinski M, Graeser M, Suess D, Herrmann IK, Hug HJ.   +10 more
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Hysteretic damping revisited

Advances in Engineering Software, 1997
Abstract An integral-differential equation (IDE) in the time domain has been proposed for the free vibration of a single-degree-of-freedom (SDOF) system with hysteretic damping which is different from the conventional complex stiffness model as employed in the frequency domain (Chen & You, Proposal NSC 85-2211-E-019-004, National Taiwan Ocean ...
J.T. Chen, D.W. You
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Hysteretic damping in rotordynamics: An equivalent formulation

Journal of Sound and Vibration, 2010
The hysteretic damping model cannot be applied to time domain dynamic simulations: this is a well-known feature that has been discussed in the literature since the time when analog computers were widespread. The constant equivalent damping often introduced to overcome this problem is also discussed, and its limitations are stated, in particular those ...
GENTA, GIANCARLO, AMATI, NICOLA
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On a Kind of Hysteretic Damping

Journal of the Engineering Mechanics Division, 1964
Slightly nonlinear materials and structures with purely hysteretic damping, subjected to harmonic disturbances, are examined. It is shown that a load-deformation or stress-strain relation, on first loading, supplemented by a rule to obtain the curves on unloading and reloading, leads to a behavior similar to that of a linear viscoelastic material, but ...
Emilio Rosenblueth, Ismael Herrera
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Hysteretic and viscous material damping

International Journal for Numerical and Analytical Methods in Geomechanics, 1980
AbstractHysteretic and viscous material damping are compared in the context of soils. Popular assumptions about damping are shown to lead to different results for the rocking mode of surface foundations at low frequency.
Molenkamp, Frans, Smith, Ian M.
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Equivalent Viscous Damping of Bilinear Hysteretic Oscillators

Journal of Structural Engineering, 2015
AbstractAn improved formula to determine the equivalent viscous damping ratio of a single-degree-of-freedom (SDOF) bilinear oscillator is proposed in this paper, which simultaneously considers the influence of the initial period, ductility ratio, and strain hardening ratio.
Liu T., Zordan T., Zhang Q., Briseghella B.   +3 more
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Practical causal hysteretic damping

Earthquake Engineering & Structural Dynamics, 2006
AbstractA number of experiments indicate that the internal damping corresponding to the energy dissipation of many materials is essentially frequency independent. Accordingly, an analysis model that can express such characteristics (called a hysteretic damping model) in the time domain is needed.
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Random response of linear hysteretic damping

AIP Conference Proceedings, 2008
The probabilistic characterization of the response of a single-degree-of-freedom (SDOF) oscillator with linear hysteretic damping excited by ground motion described by zero mean stationary Gaussian processes is achieved by profiting from a steady-state solution of the motion equation, valid when the excitation is given by the superposition of harmonics.
Claudio Floris, Adolfo Santini, Nicola Moraci   +2 more
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Hysteretic damping of wood framed buildings

Engineering Structures, 2003
Abstract The direct-displacement seismic design of wood buildings requires knowledge of the global load–displacement behavior of the building and the variation of the global equivalent viscous damping with displacement amplitude. This paper proposes a simple numerical model for the determination of these parameters.
A. Filiatrault, H. Isoda, B. Folz
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