Results 31 to 40 of about 126,980 (351)

Rheology of Weakly Vibrated Granular Media [PDF]

open access: yes, 2013
We probe the rheology of weakly vibrated granular flows as function of flow rate, vibration strength and pressure by performing experiments in a vertically vibrated split-bottom shear cell.
Dijksman, Joshua A.   +2 more
core   +3 more sources

Blade dynamic stress analysis of rotating bladed disks [PDF]

open access: yesApplied and Computational Mechanics, 2007
The paper deals with mathematical modelling of steady forced bladed disk vibrations and with dynamic stress calculation of the blades. The blades are considered as 1D kontinuum elastic coupled with three-dimensional elastic disk centrally clamped into ...
Kellner J., Zeman V.
doaj  

Excitation of vibrational soft modes in disordered systems using active oscillation [PDF]

open access: yes, 2016
We propose a new method to characterize the spatial distribution of particles' vibrations in solids with much lower computational costs compared to the usual normal mode analysis.
72167   +3 more
core   +2 more sources

Spintronics of a Nanoelectromechanical Shuttle [PDF]

open access: yes, 2005
We consider effects of the spin degree of freedom on the nanomechanics of a single-electron transistor (SET) containing a nanometer-sized metallic cluster suspended between two magnetic leads. It is shown that in such a nanoelectromechanical SET(NEM-SET)
A. N. Cleland   +6 more
core   +1 more source

Nonlinear vibrations of a moving rail-vehicle excited by snaking and lateral impacts of wheel sets

open access: yesComputer Assisted Methods in Engineering and Science, 2022
The paper develops a theory of physically non-linear vibrations of a rail-vehicle moving on a rectilinear and non-deformable track. The vibrations are excited by snaking and lateral impacts of the wheel sets.
Marian Klasztorny
doaj  

Time-resolved fuel injector flow characterisation based on 3D laser Doppler vibrometry [PDF]

open access: yes, 2014
In order to enable investigations of the fuel flow inside unmodified injectors, we have developed a new experimental approach to measure time-resolved vibration spectra of diesel nozzles using a three dimensional laser vibrometer.
Crua, Cyril, Heikal, Morgan R.
core   +3 more sources

On the use of the theory of dynamical systems for transient problems

open access: yes, 2013
This paper is a preliminary work to address the problem of dynamical systems with parameters varying in time. An idea to predict their behaviour is proposed.
Galvanetto, Ugo, Magri, Luca
core   +1 more source

Non-linear optics with two trapped atoms [PDF]

open access: yes, 2007
We show theoretically that two atomic dipoles in a resonator constitute a non-linear medium, whose properties can be controlled through the relative position of the atoms inside the cavity and the detuning and intensity of the driving laser.
D. F. Walls   +4 more
core   +3 more sources

Effects of POD control on a DFIG wind turbine structural system [PDF]

open access: yes, 2020
This paper investigates the effects power oscillation damping (POD) controller could have on a wind turbine structural system. Most of the published work in this area has been done using relatively simple aerodynamic and structural models of a wind ...
Baloch, Shurooque   +6 more
core   +1 more source

On the Discrete–Continuous Modeling of Rotor Systems for the Analysis of Coupled Lateral Torsional Vibrations

open access: yesInternational Journal of Rotating Machinery, 2000
In the paper, dynamic investigations of the rotor shaft systems are performed by means of the discrete-continuous mechanical models. In these models the rotor shaft segments are represented by the rotating cylindrical flexurally and torsionally ...
Tomasz Szolc
doaj   +1 more source

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