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
2004-01-01
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.File | Dimensione | Formato | |
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