Results 11 to 20 of about 344,449 (301)

Free vibrations of circular curved beams

open access: yesMATEC Web of Conferences, 2018
The study of free vibrations of curved beams has relevance in engineering applications like modeling turbo machinery blades, propellers, arch design, etc.
Baxy Ajinkya, Sarkar Abhijit
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
Bourguet, Rémi   +2 more
core   +2 more sources

Free vibrations of non-uniform CNT/fiber/polymer nanocomposite beams

open access: yesCurved and Layered Structures, 2017
In this paper, free vibrations of non-uniform multi-scale nanocomposite beams reinforced by carbon nanotubes (CNTs) are studied. Mori-Tanaka (MT) technique is employed to estimate the effective mechanical properties of three-phase CNT/fiber/polymer ...
Seidi J., Kamarian S.
doaj   +1 more source

Free vibration analysis of functionally graded rectangular nanoplates considering spatial variation of the nonlocal parameter

open access: yesArchives of Mechanics, 2017
We present a new nonlocal elasticity-based analysis method for free vibrations of functionally graded rectangular nanoplates. The introduced method allows taking into account spatial variation of the nonlocal parameter.
A. Alipour Ghassabi   +2 more
doaj   +1 more source

The low-lying quadrupole collective excitations of Ru and Pd isotopes [PDF]

open access: yes, 1999
Quadrupole excitations of even-even Ru and Pd isotopes are described within microscopic approach based on the general collective Bohr model which includes the effect of coupling with the pairing vibrations.
Baranger   +38 more
core   +2 more sources

Delamination identification using machine learning methods and Haar wavelets

open access: yesComputer Assisted Methods in Engineering and Science, 2017
The present paper focuses on the identification of delamination size and location in homogeneous and composite laminates. The modal analysis methods are employed to calculate the data patterns.
Ljubov Feklistova, Helle Hein
doaj   +1 more source

Lock-in of the vortex-induced vibrations of a long tensioned beam in shear flow [PDF]

open access: yes, 2011
The occurrence of lock-in, defined as the local synchronization between the vortex shedding frequency and the cross-flow structural vibration frequency, is investigated in the case of a tensioned beam of length to diameter ratio 200, free to move in both
Bourguet, Rémi   +2 more
core   +1 more source

Low Frequency Sloshing Analysis of Cylindrical Containers with Flat and Conical Baffles

open access: yesInternational Journal of Applied Mechanics and Engineering, 2017
This paper presents an analysis of low-frequency liquid vibrations in rigid partially filled containers with baffles. The liquid is supposed to be an ideal and incompressible one and its flow is irrotational.
V. Gnitko, Y. Naumemko, E. Strelnikova
doaj   +1 more source

Fluctuations of pipelines of gas-containing liquids under changing bearing conditions

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2022
The authors deal with the vibration of the pipeline that occurs during the transportation of a gas-containing liquid due to the uneven distribution of gas accumulation along the length of the pipeline, which produces pulsating movements of the center of ...
Yevgeny V. Leontiev, Vladimir I. Travush
doaj   +1 more source

Natural Frequencies of Rectangular Laminated Plates—Introduction to Optimal Design in Aeroelastic Problems

open access: yesAerospace, 2018
Free vibration (or eigenvalue analysis) is a prerequisite for aeroelastic analysis. For divergence analysis, slope influence coefficients (rotation at point i due to unit load at point j) are calculated using free vibration mode shapes and corresponding ...
Aleksander Muc
doaj   +1 more source

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