Global ETD Search
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Showing 1 to 9 of 9 for “"Critical damping"”.
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The effect of support motion on structures: a study of the use of harmonic analysis
… method is made for (a) an elastic system with no damping, (b) an elastic system with ten per cent of critical damping, and (c) an elasto-plastic system with ten per cent of critical damping. The objective of this study was to find through harmonic analysis a method to predict the approximate …
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Análise dinâmica de torres e estruturas elevadas lateralmente carregadas
… is supposed to be deterministic. A viscous type damping is introduced and the general equations of the motion are obtained from the Hamilton Principle. Some considerations are done on the nature of the damping matrix, by means of specifying the percentage of critical damping, uncoupling of damped …
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Análise dinâmica linear por superposição modal de cascas finas arbitrárias pelo Método dos Elementos Finitos
… Method. The presence of a viscous type damping can be considered by means of percentages of the critical damping. An automatic computer program was developed to provide the vibratory properties and the dynamic response to several types of deterministic loadings, including temperature …
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Investigations into the mechanics of connective tissue
… A theoretical investigation was carried out into critical damping in viscoelastic oscillators, where the aim was to apply to the findings to connective tissue. The fractional Maxwell model and zener model where both solved for, where it was found that damping decreases as the material becomes more …
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Controllable, non-oscillatory damping for deformable objects
… presents a new method for the controllable damping of deformable objects. The method evolves from physically based techniques; however, it allows for non-physical, but visually plausible motion. This flexibility leads to a simple interface, with intuitive control over the behaviour of the …
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Effect of Variation of the Systemic Parameters on the Structural Response of Single Degree of Freedom Systems Subjected to Incremental Dynamic Analysis
… The systemic parameters are mass, stiffness, damping, yield strength and geometric stiffness. Each of these parameters was varied one at a time while the other values were kept constant. For each variation of parameters a set of single-record IDA curves was obtained. Five to six ground motions …
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Seismic Performance Assessment of Wood-Frame Shear Wall Structures
… considered in this study include level of critical damping, analytical modeling of damping, hysteresis model shape variations, ground motion characteristics, level of gravity loads, and floor acceleration variations. A subset of building model designs that were originally designed for the …
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Thermally activated dislocation motion including inertial effects in solid solutions
… a trapped dislocation is found to depend on the damping coefficient only for a large viscous drag. The probability that a dislocation will be trapped by a well or barrier is found to depend on the damping coefficient for a small viscous drag. This inertial effect determines how far a dislocation …
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Dynamic Testing and Modeling of a Superelevated Skewed Highway Bridge
… bandwidth method was used to estimate the damping for each mode, with values ranging from 1% to 5% of critical damping. Finite element (FE) models of the bridge were constructed in the commercial FE software Abaqus. The effects of adding and removing superelevation and skew, varying mesh …