This paper presents a procedure for shakedown analysis of train wheels on the basis of given wheel–rail contact tractions. The main topics dealt with in the paper are: comparative formulations by both static and kinematic theorems; exploitation of the geometry and material axial symmetry by finite strip, Fourier series modelling in space and consequent reduction of the analysis to decoupled problems of much smaller sizes; numerical solutions byavailable nonlinear programming algorithms of the ad hoc formulated optimization problems; comparisons of the results with those obtained from step-by-step three-dimensional finite element analyses.

Shakedown analysis of train wheels by Fourier series and nonlinear programming

BOCCIARELLI, MASSIMILIANO;COCCHETTI, GIUSEPPE;MAIER, GIULIO
2004

Abstract

This paper presents a procedure for shakedown analysis of train wheels on the basis of given wheel–rail contact tractions. The main topics dealt with in the paper are: comparative formulations by both static and kinematic theorems; exploitation of the geometry and material axial symmetry by finite strip, Fourier series modelling in space and consequent reduction of the analysis to decoupled problems of much smaller sizes; numerical solutions byavailable nonlinear programming algorithms of the ad hoc formulated optimization problems; comparisons of the results with those obtained from step-by-step three-dimensional finite element analyses.
plasticity; shakedown analysis; Finite strips; Fourier series; Train wheels
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/556126
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