Determination of track irregularities and stiffness parameters with inverse transfer functions of track recording vehicles
Determination of track irregularities and stiffness parameters with inverse transfer functions of track recording vehicles
A new method for deconvolution of track recording data, obtained with versine measurements is presented. Deconvolution is done in the time domain using digital filters for the deconvolution of short wavelength irregulatrities and long wavelength track profiles. The method is also applicable for the measurement of track stiffness parameters. For demonstrating the deconvolution of track stiffness parameters, results in the form of versine measurements of a numerical simulation model for the dynamic vehicle track interaction are used as inputs. The decovoluted elasticity function of the track looks more like the dynamic wheels loads than the real track elasticity function, because the elastic track deflections due to the dynamic wheel load effects are much higher than the elastic deflections as a function of changing the track stiffness parameters.
Dokumentinformationen
Determination of track irregularities and stiffness parameters with inverse transfer functions of track recording vehicles
Die Bestimmung von Schienenunregelmäßigkeiten und Steifigkeitsparametern mit inversen Übertragungsfunktionen von Schienenmeßfahrzeugen
Herbertov Workshop on Interaction of Railway Vehicles with the Track and its Substructure, 3 ; 117-132
Vehicle System Dynamics ; 24 , Supplement
1995
16 Seiten, 14 Bilder, 3 Quellen
Aufsatz (Konferenz)
Englisch
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