Results 31 to 40 of about 600 (218)

Rail Joint Model Based on the Euler-Bernoulli Beam Theory

open access: yesRomanian Journal of Transport Infrastructure, 2019
In this paper, a rail joint model consisting of three Euler-Bernoulli beams connected via a Winkler foundation is proposed in order to point out the influence of the joint gap length upon the stiffness of the rail joint.
Mazilu Traian   +4 more
doaj   +1 more source

FROM WINKLER’S FOUNDATION TO POPOV’S FOUNDATION

open access: yesFacta Universitatis, Series: Mechanical Engineering, 2019
In recent years, the method of dimensionality reduction (MDR) has started to figure as a very convenient tool for dealing with a wide class of elastic contact problems. The MDR modeling framework introduces an equivalent punch profile and a one-dimensional Winkler-type elastic foundation, called henceforth Popov’s foundation.
openaire   +5 more sources

Free Vibrations of an Elastically Restrained Euler Beam Resting on a Movable Winkler Foundation

open access: yesShock and Vibration, 2019
The traditional theory of beam on elastic foundation implies a hypothesis that the elastic foundation is static with respect to the inertia reference frame, so it may not be applicable when the foundation is movable.
Qiang Zhou, Tong Wang
doaj   +1 more source

Flexural Vibration Band Gaps Characteristics in Phononic Crystal Euler Beams on Two-Parameter Foundation

open access: yesAdvances in Mechanical Engineering, 2013
The vibration band gaps in the phononic crystal (PC) Euler beam on two-parameter foundation are investigated theoretically by the combination of the transfer matrix (TM) method and Bloch theorem.
Yan Zhang, Jing He, Lin-hua Jiang
doaj   +1 more source

Local buckling of thin plate on tensionless elastic foundations under interactive uniaxial compression and shear

open access: yesTheoretical and Applied Mechanics Letters, 2018
: This paper uses a mathematical method to develop an analytical solution to the local buckling behaviour of long rectangular plates resting on tensionless elastic Winkler foundations and under combined uniform longitudinal uniaxial compressive and ...
Jianghui Dong   +3 more
doaj   +1 more source

Peridynamic Model for a Mindlin Plate Resting on a Winkler Elastic Foundation [PDF]

open access: yesJournal of Peridynamics and Nonlocal Modeling, 2020
AbstractIn this study, a peridynamic model is presented for a Mindlin plate resting on a Winkler elastic foundation. In order to achieve static and quasi-static loading conditions, direct solution of the peridynamic equations is utilised by directly assigning inertia terms to zero rather than using widely adapted adaptive dynamic relaxation approach ...
Vazic, Bozo   +2 more
openaire   +4 more sources

Investigation on indentation rolling resistance of belt conveyor based on Hertz contact theory compared with one-dimensional Winkler foundation

open access: yesAdvances in Mechanical Engineering, 2018
Based on Hertz contact theory and one-dimensional Winkler foundation combination with viscoelastic theory, the author derived theoretical formulas of indentation rolling resistance, respectively.
Lu Yan
doaj   +1 more source

Comparison of Solutions to the Bending Problems of Three-Layer Plates on the Winkler and Pasternak Foundations

open access: yesМеханика машин, механизмов и материалов, 2021
Solutions of problems on axisymmetric bending of an elastic three-layer circular plate on the Winkler and Pasternak foundations are given. The bearing layers are taken as isotropic, for which Kirchhoff’s hypotheses are fulfilled.
Anastasiya G. Kozel
doaj   +1 more source

CD31+ Cell Enrichment Enhances Therapeutic Effects of Stromal Vascular Fraction in Experimental Primary Osteoarthritis: A Preclinical Study in the Dunkin Hartley Guinea Pig Model

open access: yesAdvanced Science, EarlyView.
Both SVF and CD31+ SVF improve spontaneous osteoarthritis, but CD31+ enrichment refines the therapeutic profile rather than broadly enhancing all effects. More distinct benefits are observed in extracellular matrix remodeling, osteochondral integrity, and subchondral/trabecular bone preservation, supporting CD31+‐enriched SVF as a biologically enhanced
Sijia Zhou   +16 more
wiley   +1 more source

Soil-Structure Interaction of Cylindrical RC Tank of Variable Wall Thickness under the Constant Thermal Loading [PDF]

open access: yesArchives of Civil Engineering, 2020
An effective method for the analysis of soil-structure interaction including the behaviour of cylindrical storage tank with varying wall thickness under the action of constant thermal loading is presented.
Paweł Marek Lewiński, Michał Rak
doaj   +1 more source

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