Results 21 to 30 of about 91,930 (296)
Nihon Kikai Gakkai ronbunshu, 2021 When an elevator rope for a high-rise building is forcibly excited by the displacement of the building induced by wind force and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the building ...
Hiroyuki KIMURA +2 more
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Viscous Damping of Vibrations in Microtubules [PDF]
Journal of Biological Physics, 2000 Pokorný et al. have recently suggested that metabolic processes drivemicrotubules in a cell to vibrate at Megahertz frequencies, but the theorydoes not explicitly consider dissipative effects which will tend to damp outthe vibrations. To examine the effects of viscous damping on the structure,we determine viscous forces and rate of energy loss in a ...
K R, Foster, J W, Baish
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A General Rule for the Influence of Physical Damping on the Numerical Stability of Time Integration Analysis [PDF]
Journal of Applied and Computational Mechanics, 2018 The influence of physical damping on the numerical stability of time integration analysis is an open question since decades ago. In this paper, it is shown that, under specific very general conditions, physical damping can be disregarded when studying ...
Aram Soroushian
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Influence of Internal Rubber Damper on Cable External Viscous Damper Effectiveness
Eng, 2022 In practice, the internal rubber dampers are widely installed inside the cable guide pipe between the external viscous damper and the cable anchorage. In order to study the effect of the internal damper on the performance of the external viscous damper ...
Changzhao Li +5 more
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A Study of the Hydrodynamic Performance of a Pitch-type Wave Energy Converter–Rotor
Energies, 2019 The effect of hydrodynamic performance of the wave energy converter (WEC)–rotor based on linear potential flow theory due to nonlinear viscous damping was investigated.
Sunny Kumar Poguluri +2 more
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Nonlinear Wave Evolution in Interaction with Currents and Viscoleastic Muds
Journal of Marine Science and Engineering, 2021 A numerical model is extended to investigate the nonlinear dynamics of surface wave propagation over mud in the presence of currents. A phase-resolving frequency-domain model for wave-current interaction is improved to account for wave modulations due to
Elham Sharifineyestani, Navid Tahvildari
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Viscous and hysteretic damping
Bulletin of the New Zealand Society for Earthquake Engineering, 2012 Capacity design, while protecting a structure against undesirable energy dissipations, has major implications on member sizes and overall cost. Furthermore, in some situations where protected elements possess some inelastic deformation capacity, it may be unwarranted.
Chloe C. Labise +3 more
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IDENTIFICATION OF DAMPING: PART 1, VISCOUS DAMPING
Journal of Sound and Vibration, 2001 Abstract Characterization of damping forces in a vibrating structure has long been an active area of research in structural dynamics. The most common approach is to use “viscous damping” where the instantaneous generalized velocities are the only relevant state variables that affect damping forces.
Adhikari, S, Woodhouse, J
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Frontiers in Built Environment, 2019 Dynamic response of structures is a complex process that is not well-understood. Seismic design codes allow structural systems of buildings to behave inelastically during strong ground shaking.
Pedram Hesam +2 more
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Viscous damping of perforated planar micromechanical structures [PDF]
Sensors and Actuators A: Physical, 2005 The paper gives an analytical approximation to the viscous damping coefficient due to the motion of a gas between a pair of closely spaced fluctuating plates in which one of the plates contains a regular system of circular holes. These types of structures are important parts of many microelectromechanical devices realized in MEMS technology as ...
D, Homentcovschi, R N, Miles
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