Results 11 to 20 of about 91,375 (296)

A General Rule for the Influence of Physical Damping on the Numerical Stability of Time Integration Analysis [PDF]

open access: yesJournal 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
doaj   +1 more source

Influence of Internal Rubber Damper on Cable External Viscous Damper Effectiveness

open access: yesEng, 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
doaj   +1 more source

A Study of the Hydrodynamic Performance of a Pitch-type Wave Energy Converter–Rotor

open access: yesEnergies, 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
doaj   +1 more source

Nonlinear Wave Evolution in Interaction with Currents and Viscoleastic Muds

open access: yesJournal 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
doaj   +1 more source

Viscous and hysteretic damping

open access: yesBulletin 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
openaire   +1 more source

IDENTIFICATION OF DAMPING: PART 1, VISCOUS DAMPING

open access: yesJournal 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
openaire   +4 more sources

A Method to Estimate Effective Viscous Damping Ratio and Restoring Force From the Dynamic Response Data of Structures

open access: yesFrontiers 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
doaj   +1 more source

Viscous damping of perforated planar micromechanical structures [PDF]

open access: yesSensors 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
openaire   +2 more sources

On the interaction of exponential non-viscous damping with symmetric nonlinearities [PDF]

open access: yes, 2008
This paper studies the interaction between non-viscous damping and nonlinearities for nonlinear oscillators with reflection symmetry. The non-viscous damping function is an exponential damping model which adds a decaying memory property to the damping ...
Adhikari   +26 more
core   +2 more sources

Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems [PDF]

open access: yes, 2017
Low mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilising multiple pendulum stages with vertical blade springs and materials with high quality factors provides attenuation ...
Barr, Bryan W.   +19 more
core   +3 more sources

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