Results 1 to 10 of about 94 (91)

Free vibration analysis of beams on a Pasternak foundation using Legendre polynomials and Rayleigh-Ritz method

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2017
A free vibration of Euler-Bernoulli and Timoshenko beams resting on a two-parameter elastic foundation of Pasternak type has been investigated. Rayleigh-Ritz method is employed to deduce the governing equation and the Legendre polynomials multiplied by ...
Ахмад Рахбар-Ранжі   +1 more
doaj   +7 more sources

Damage and plasticity evolution of reinforced concrete beams using laminated Euler-Bernoulli finite elements

open access: yesRevista IBRACON de Estruturas e Materiais, 2023
: This paper analyses the behaviour of reinforced concrete beams subjected to progressive loads. Although this topic is addressed in recent works through tri-dimensional finite elements, the present study adopts a simpler alternative, using Euler ...
Ana Paula Imai   +2 more
doaj   +1 more source

Nonlinear Dynamic Analysis of a Spatial Mobile Flexible Robot

open access: yesآموزش مهندسی ایران, 2009
Using some agent variables, the general structure of the dynamic model of a spatial mobile robot with N flexible links and N revolute joints that is a set of 5N+6 nonlinear coupled partial differential equations along with boundary conditions, has been ...
Hassan Zohoor, Mehdi Khorsandijou
doaj   +1 more source

Flexible Driving Mechanism Inspired Water Strider Robot Walking on Water Surface

open access: yesIEEE Access, 2020
The agile and efficient locomotion of water striders on water surface is attributed to the water repellency ability of their slender legs. The legs are usually treated as rigid beams, neglecting the effect of flexible deformation on its movement. Several
Jihong Yan   +3 more
doaj   +1 more source

Analytical simulation of the cantilever-type energy harvester

open access: yesAdvances in Mechanical Engineering, 2016
This article describes an analytical model of the cantilever-type energy harvester based on Euler–Bernoulli’s beam theory. Starting from the Hamiltonian form of total energy equation, the bending mode shapes and electromechanical dynamic equations are ...
Jie Mei   +4 more
doaj   +1 more source

Earthquake and Wave Analysis of Circular Cylinder considering Water-Structure-Soil Interaction

open access: yesAdvances in Civil Engineering, 2020
Offshore structures in zones of active seismicity are under a potential threat caused by the combined action of earthquakes and waves. Taking a submerged circular cylinder as the prototype and considering water-structure-soil interaction, the present ...
Piguang Wang   +3 more
doaj   +1 more source

Equilibrium and stability of beams with elastoplastic semi-rigid joints [PDF]

open access: yesArchives of Civil Engineering
The classical theory of beams admits two types of connections between structural elements: perfectly rigid and perfectly flexible. However, the engineering reality calls for a more general approach to joint modelling.
Grzegorz Dzierżanowski
doaj   +1 more source

Analysis of the transverse vibration of a multistepped FGM beam resting on a Winkler foundation in a thermal environment and carrying concentrated masses

open access: yesResults in Engineering
This paper examines a novel case study involving the free vibration of a stepped FGM beam-mass system resting on elastic foundations and subjected to a nonlinear or uniform thermal load.
Issam El Hantati   +5 more
doaj   +1 more source

Assessment of Vertical Dynamic Responses in a Cracked Bridge under a Pedestrian-Induced Load

open access: yesBuildings
Cracks, common indicators of deterioration in bridge frameworks, frequently stem from wear and rust, leading to increased local flexibility and changes in the structure’s dynamic behavior.
Bin Zhen   +3 more
doaj   +1 more source

Analytical solution for dynamic transverse vibrations of non-uniform beams on the variable foundations

open access: yesOpen Mathematics
We demonstrate an analytical solution for the dynamic transversal vibrations of non-uniform beams on variable foundations. The exact expressions of eigenvalues and eigenfunctions are derived.
Nurakhmetov Daulet
doaj   +1 more source

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