Results 71 to 80 of about 24,862 (194)

Reduction of degrees of Freedom in three-dimensional ANCF beam of 24-DOF beam element by component mode synthesis

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper describes how to reduce degrees of freedom for the absolute nodal coordinate formulation (ANCF) of three-dimensional beam made up of 24 degrees of freedom beam elements by applying the component mode synthesis. The stiffness matrix of the ANCF
Kosuke KADOKURA, Nobuyuki KOBAYASHI
doaj   +1 more source

Comparative Spectral Analysis of Flexible Structure Models: the Euler-Bernoulli Beam model, the Rayleigh Beam model, and the Timoshenko Beam Model [PDF]

open access: yes, 2017
We derive herein approximate spectra for three dierent models of transversely vibrating, beams. Each model consists of a system of partial dierential equations (PDEs) with various, boundary conditions.
Nguyen, Anhhong Rose
core   +2 more sources

The Shear Effect of Large-Diameter Piles under Different Lateral Loading Levels: The Transfer Matrix Method

open access: yesBuildings
In various analytical models, modeling the behavior of large-diameter monopiles and piles can be challenging due to these foundations with huge body sizes carrying mechanisms of lateral loads to the surrounding soils.
Jing Liu   +5 more
doaj   +1 more source

Random Vibration of Space Shuttle Weather Protection Systems

open access: yesShock and Vibration, 1995
The article deals with random vibrations of the space shuttle weather protection systems. The excitation model represents a fit to the measured experimental data. The cross-spectral density is given as a convex combination of three exponential functions.
Isaac Elishakoff   +3 more
doaj   +1 more source

Approximation techniques for parameter estimation and feedback control for distributed models of large flexible structures [PDF]

open access: yes
Approximation ideas are discussed that can be used in parameter estimation and feedback control for Euler-Bernoulli models of elastic systems. Focusing on parameter estimation problems, ways by which one can obtain convergence results for cubic spline ...
Banks, H. T., Rosen, I. G.
core   +1 more source

Nano and viscoelastic Beck's column on elastic foundation

open access: yes, 2014
Beck's type column on Winkler type foundation is the subject of the present analysis. Instead of the Bernoulli-Euler model describing the rod, two generalized models will be adopted: Eringen non-local model corresponding to nano-rods and viscoelastic ...
Atanackovic, Teodor M.   +2 more
core   +1 more source

Free vibration analysis of angle-ply laminate composite beams by mixed finite element formulation using the Gâteaux differential

open access: yesScience and Engineering of Composite Materials, 2014
Free vibration analyses of angle-ply laminated composite beams were investigated by the Gâteaux differential method in the present paper. With the use of the Gâteaux differential method, the functionals were obtained and the natural frequencies of the ...
Ozutok Atilla   +2 more
doaj   +1 more source

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