Results 21 to 30 of about 818,508 (239)

Optimal Cantilever Dynamic Vibration Absorbers by Timoshenko Beam Theory [PDF]

open access: goldShock and Vibration, 2004
A double‐ended cantilever beam as a distributed parameter dynamic vibration absorber has been applied to a single‐degree‐of‐freedom system subjected to harmonic forces.In this investigation, the beam has been analyzed under the well known model of Timoshenko and the computation of best parameters is based on the Chebyshev’s optimality criterion.This is
Cavacece M., Vita L.
openaire   +8 more sources

Study on physical essence of the Timoshenko beam theory and its relation with the Euler beam theory [PDF]

open access: bronzeSCIENTIA SINICA Technologica, 2018
Compared with the Euler beam theory, the Timoshenko beam theory has the advantages in solution accuracy and in applicable aspect ratios. However, it received some criticisms in two aspects: firstly, it is energy inconsistent, and secondly, it cannot be reduced to the Euler beam theory in a mechanics way.
LuXian Li   +3 more
openaire   +3 more sources

Closed form solutions of bending Bi-directional functionally graded tapered beams using Euler and Timoshenko theories

open access: goldResults in Engineering
This study focuses on developing closed-form analytical solutions for the bending analysis of bi-directional functionally graded tapered beams, a technically challenging area with limited existing solutions.
Omar K. Omar   +2 more
doaj   +2 more sources

Dynamic Response of Slope Inertia-Based Timoshenko Beam under a Moving Load

open access: yesApplied Sciences, 2022
In this paper, the dynamic response of a simply supported beam subjected to a moving load is reinvestigated. Based on a new beam theory, slope inertia-based Timoshenko (SIBT), the governing equations of motion of the beam are derived.
Tuo Lei   +4 more
doaj   +1 more source

Natural Frequency Characteristics of the Beam with Different Cross Sections Considering the Shear Deformation Induced Rotary Inertia

open access: yesApplied Sciences, 2020
Based on the classical Timoshenko beam theory, the rotary inertia caused by shear deformation is further considered and then the equation of motion of the Timoshenko beam theory is modified.
Chunfeng Wan   +6 more
doaj   +1 more source

Analytic solutions for free vibration analysis of laminated beams in three-dimensional statement [PDF]

open access: yesEPJ Web of Conferences, 2019
In this research we consider free vibrations of laminated beams in terms of three-dimensional linear theory of elasticity. Analytic solutions for natural frequencies of laminated beams are obtained by using an asymptotic splitting method.
Golushko Sergey   +2 more
doaj   +1 more source

Calculation of Critical Load of Axially Functionally Graded and Variable Cross-Section Timoshenko Beams by Using Interpolating Matrix Method

open access: yesMathematics, 2022
In this paper, the interpolation matrix method (IMM) is proposed to solve the buckling critical load of axially functionally graded (FG) Timoshenko beams.
Renyu Ge   +4 more
doaj   +1 more source

On the valid frequency range of Timoshenko beam theory [PDF]

open access: yesJournal of Sound and Vibration, 2006
Abstract The frequency equation of Timoshenko beam theory factorises for hinged–hinged end conditions, leading to a first and second spectrum of natural frequencies; the latter is largely inaccurate and can be isolated and disregarded. For the majority of other end conditions, when the frequency equation does not factorise, one may think in terms of ...
Stephen, N.G., Puchegger, S.
openaire   +4 more sources

Nonlocal Buckling and Vibration Analysis of Triple-Walled ZnO Piezoelectric Timoshenko Nano-beam Subjected to Magneto-Electro-Thermo-Mechanical Loadings [PDF]

open access: yesMechanics of Advanced Composite Structures, 2015
In this study, using the non-local elasticity theory, the buckling and vibration analysis of triple- walled ZnO piezoelectric Timoshenko beam on elastic Pasternak foundation is analytically investigated under magneto-electro-thermo-mechanical loadings ...
Mehdi Mohammadimehr   +2 more
doaj   +1 more source

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