Results 181 to 190 of about 600 (218)

Natural Frequencies of Railway Slab on Winkler Foundation

Applied Mechanics and Materials, 2014
Natural frequencies and natural modes represent the basic dynamic characteristics of all dynamic systems. They define the dynamic individuality of dynamic system. It is useful to know approximate relations giving the results with adequate accuracy. The analysis of plates in contact with elastic foundation is the part of structural dynamic which demands
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Methodology to Evaluate First Transition Foundation Stiffness for Columns on Winkler Foundation

Journal of Structural Engineering, 2002
A methodology is developed in this paper to evaluate the first transition foundation stiffness for columns subjected to end concentrated loads, on a Winkler foundation, where the buckling mode shape changes. The method is based on earlier work of Naidu and Rao to predict the fundamental frequency of beam columns, wherein it was assumed that the mode ...
G. Venkateswara Rao, R. Neetha
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A mixed finite element formulation for timoshenko beam on winkler foundation

Computational Mechanics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ergüven, M. E., Gedikli, A.
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A boundary integral equation formulation for thick plates on a winkler foundation

Computers & Structures, 1993
A boundary integral equation formulation for thick plates on a Winkler foundation is presented. With the aid of the Hörmander operator method, a set of differential equations to find the fundamental solutions of thick plates on a Winkler foundation is converted into a sixth-order partial differential equation with one scalar function as an unknown. The
Wang, Jianguo, Wang, Xiuxi, Huang, Maokuang   +2 more
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Unilateral plate contact with the elastic-plastic winkler-type foundation

Computers & Structures, 1991
Abstract In this work contact problems of a plate with the elastic-plastic Winkler-type foundation has been solved. An unilateral character of bonds between plate and foundation has been taken into consideration. The effect of friction forces in the contact plane has been neglected and an incremental approach has been applied.
Lewandowski, R., Świtka, R.
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Dynamic stability of a rectangular plate on non-homogeneous winkler foundation

Computers & Structures, 1997
Summary: We study the dynamic stability of a rectangular plate on non-homogeneous foundation, subjected to uniform compressive in-plane bi-axial dynamic loads and supported on completely elastically restrained boundaries. The non-homogeneous foundation consists of two regions having different stiffnesses but symmetric about the centre lines of the ...
Saha, K. N., Kar, R. C., Datta, P. K.
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Stability and dynamics of beams on winkler elastic foundations

Earthquake Engineering & Structural Dynamics, 1989
AbstractThe dynamical properties of a foundation beam on a Winkler soil have been recently discussed by using the power series method14 and the finite element method.15, 17 – 19 The first method can be applied only if the Winkler soil is linearly distributed along the whole span: on the contrary, the second method is more general, but it requires ...
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Beam on viscoelastic foundation: an extension of Winkler’s model

Archive of Applied Mechanics, 2009
Models in the field of Applied Mechanics originate less from thought experiments but rather from technical problems. So does the so-called Winkler model: elastic beam on deformable foundation. It stems from the then (1870) High Technology the railway system.
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A general solution to vibrations of beams on variable winkler elastic foundation

Computers & Structures, 1993
A general solution to vibrations of beams on a variable Winkler elastic foundation is presented. The solution to the dynamic response of the beam is obtained by considering the reaction force of the foundation as the external force acting on the beam. This is described by an integral equation that includes the displacement of the beam.
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NON-LINEAR VIBRATIONS OF A BEAM RESTING ON A TENSIONLESS WINKLER FOUNDATION

Journal of Sound and Vibration, 2000
The forced vibrations of an elastic beam resting on a non-linear tensionless Winkler foundation subjected to a concentrated dynamic load at its centre are described in this paper. The problem is a non-linear one because of the tensionless character of the foundation and the non-linear term in the foundation model.
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