Results 21 to 30 of about 641,361 (342)

BUS BAR DAMPING IS A WAY OF INCREASING THE VIBRATION RELIABILITY OF TURBOGENERATOR STATORS

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2019
: The work is devoted to the consideration of the bus bar ring damping of turbogenerator stators. The urgency of the problem of ensuring the vibrational reliability of high-power turbogenerator stators is shown.
S. N. Gavrilov, Iu. K. Petrenya
doaj   +1 more source

Performance-Based Design of Tall Timber Buildings Under Earthquake and Wind Multi-Hazard Loads: Past, Present, and Future

open access: yesFrontiers in Built Environment, 2022
The rapid growth of the urban population and associated environmental concerns are challenging city planners and developers to consider sustainable and cost-efficient building systems. Timber-based buildings, such as sustainable systems, are increasingly
S. Tesfamariam
doaj   +1 more source

Damping rates of hot Giant Dipole Resonances [PDF]

open access: yes, 1998
The damping rate of hot giant dipole resonances (GDR) is investigated. Besides Landau damping we consider collisions and density fluctuations as contributions to the damping of GDR.
Fuhrmann, U., Morawetz, K., Walke, R.
core   +2 more sources

Application of Smoothed Particle Hydrodynamics to Structural Cable Analysis

open access: yesApplied Sciences, 2020
In this study, a numerical model is proposed for the analysis of a simply supported structural cable. Smoothed particle hydrodynamics (SPH)—a mesh-free, Lagrangian method with advantages for analysis of highly deformable bodies—is utilized to model a ...
A. Ersin Dinçer, Abdullah Demir
doaj   +1 more source

Radiative damping in wave guide based FMR measured via analysis of perpendicular standing spin waves in sputtered Permalloy films

open access: yes, 2015
The damping $\alpha$ of the spinwave resonances in 75 nm, 120 nm, and 200nm -thick Permalloy films is measured via vector-network-analyzer ferromagnetic-resonance (VNA-FMR) in the out-of-plane geometry.
Nembach, Hans T.   +4 more
core   +1 more source

Thermally damped linear compressional waves in a 2D solar coronal model [PDF]

open access: yes, 2007
The high resolution observations (TRACE and SOHO) of waves in coronal structures have revealed a rapid damping of modes, sometimes their damping length being of the same order as their wavelength. The rapid damping of modes in coronal loops permits us to
Ballai, I., Marcu, A., Orza, B.
core   +1 more source

Dynamical shift condition for unequal mass black hole binaries

open access: yes, 2010
Certain numerical frameworks used for the evolution of binary black holes make use of a gamma driver, which includes a damping factor. Such simulations typically use a constant value for damping.
Bruegmann, Bernd   +2 more
core   +1 more source

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

Damping of gravitational waves by matter

open access: yes, 2017
We develop a unified description, via the Boltzmann equation, of damping of gravitational waves by matter, incorporating collisions. We identify two physically distinct damping mechanisms -- collisional and Landau damping.
Baym, Gordon   +2 more
core   +2 more sources

Thermal energies of classical and quantum damped oscillators coupled to reservoirs [PDF]

open access: yes, 2016
We consider the global thermal state of classical and quantum harmonic oscillators that interact with a reservoir. Ohmic damping of the oscillator can be exactly treated with a 1D scalar field reservoir, whereas general non-Ohmic damping is conveniently ...
Anders, J., Philbin, T. G.
core   +2 more sources

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