Results 21 to 30 of about 618,709 (247)

Influence of the Cut Axial Depth on Surface Roughness at High-Speed Milling of Thin-Walled Workpieces

open access: yesНаука и техника, 2021
The paper presents the results of research on the dynamics of end milling of thin-walled work-pieces having complex geometric shapes. Since the milling process with shallow depths of cut is characterized by high intermittent cutting, the proportion of ...
A. I. Germashev   +4 more
doaj   +1 more source

A discrete model for geometrically nonlinear free and forced vibrations of stepped and continuously segmented Euler-Bernoulli AFG beams (SAFGB) carrying point masses [PDF]

open access: yes, 2022
A discrete model is applied to handle the geometrically nonlinear free and forced vibrations of beams consisting of several different segments whose mechanical characteristics vary in the length direction and contain multiple point masses located at ...
Moukhliss, Anass   +7 more
core   +1 more source

Vibration of rigid bodies in the visco-elastic Hook-Maxwell model

open access: yesVietnam Journal of Mechanics, 1979
In this paper the self-excited and forced vibrations of rigid bodies fastened to visco-elastic beam are considered. Two parameters solutions of motion equations of third order are found in the asymptotic series and their stability is investigated.
Nguyen Van Dao
doaj   +1 more source

Analysis of the associated stress distributions to the nonlinear forced vibrations of functionally graded multi-cracked beams

open access: yesDiagnostyka, 2021
Geometrically non-linear vibrations of functionally graded Euler-Bernoulli beams with multi-cracks, subjected to a harmonic distributed force, are examined in this paper using a theoretical model based on Hamilton's principle and spectral analysis.
Mohcine Chajdi   +3 more
doaj   +1 more source

Multi-frequency vortex-induced vibrations of a long tensioned beam in linear and exponential shear flows [PDF]

open access: yes, 2013
The multi-frequency vortex-induced vibrations of a cylindrical tensioned beam of aspect ratio 200, free to move in the in-line and cross-flow directions within first a linearly and then an exponentially sheared current are investigated by means of direct
Triantafyllou, Michael S.   +2 more
core   +1 more source

Forced Transverse Vibration of a Closed Double Single-Walled Carbon Nanotube System Containing a Fluid with Effect of Compressive Axial Load

open access: yesShock and Vibration, 2015
Based on the Rayleigh beam theory, the forced transverse vibrations of a closed double single-walled carbon nanotube (SWCNT) system containing a fluid with a Pasternak layer in-between are investigated.
Mehrdad Nasirshoaibi   +2 more
doaj   +1 more source

Effects of Damping and Reynolds Number on Vortex-Induced Vibrations [PDF]

open access: yes, 2007
Vortex-induced vibrations have been studied experimentally with emphasis on damping and Reynolds number effects. Our system was an elastically-mounted rigid circular cylinder, free to oscillate only transverse to the flow direction, with very low ...
Klamo, Joseph Thomas
core   +1 more source

Finite element reduced order models for nonlinear vibrations of piezoelectric layered beams with applications to NEMS [PDF]

open access: yes, 2012
This article presents a finite element reduced order model for the nonlinear vibrations of piezoelectric layered beams with application to NEMS. In this model, the geometrical nonlinearities are taken into account through a von Kármán nonlinear strain ...
O. Thomas   +5 more
core   +1 more source

The effects of kinematic condensation on internally resonant forced vibrations of shallow horizontal cables [PDF]

open access: yes, 2007
This study aims at comparing non-linear modal interactions in shallow horizontal cables with kinematically non-condensed vs. condensed modeling, under simultaneous primary external and internal resonances.
Rega, Giuseppe, Srinil, Narakorn
core   +4 more sources

Some relevant aspects of footbridge vibrations [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2002
Considering the contemporary structural inaterials that are becoming more resistant, having higher strength to weight ratio, and the fact that live load of footbridges is low, the design based on static analysis only, respecting ultimate limit states ...
Spasojević Ana   +3 more
doaj   +1 more source

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