Journal ArticleDOI
Study on wheel polygonization of a metro vehicle based on polygonal wear simulation
Bin Fu,Stefano Bruni,Shihui Luo +2 more
TLDR
In this paper, a long-term iterative wear model is proposed to predict the development of polygonal wear of railway wheels, and two new strategies to investigate wheel polygonization are proposed.About:
This article is published in Wear.The article was published on 2019-11-15. It has received 31 citations till now.read more
Citations
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Journal ArticleDOI
Polygonisation of railway wheels: a critical review
TL;DR: The characteristics, effects, causes, and solutions of wheel polygonisation in metro vehicles, locomotives, and high-speed trains in China are summarized and guidance is provided on further understanding the formation mechanisms, monitoring technology, and maintenance criterion of wheel Polygonisation.
Journal ArticleDOI
A long-term tracking test of high-speed train with wheel polygonal wear
TL;DR: In this article, a long-term tracking test was performed on a newly designed high-speed train with the nominal speed of 250 km/h. The wheel roughness and structural vibration were both recorded during two reprofil...
Journal ArticleDOI
Wheel/rail dynamic interaction induced by polygonal wear of locomotive wheels
TL;DR: In this article, the effect of wheel polygonal wear on railway vehicles was investigated, and the authors presented an investigation into the effects of wheel wear on the running safety of railway vehicles.
Journal ArticleDOI
On the formation mechanism of high-order polygonal wear of metro train wheels: Experiment and simulation
TL;DR: Wang et al. as discussed by the authors investigated the formation mechanism and key influencing factors of wheel high-order polygonisation, and found that the wheel polygonization is related to the first-order bending vibration of the wheelset and the P2 resonance generated on ladder sleeper tracks and steel spring floating slab tracks.
Journal ArticleDOI
Experimental Investigations on the Effects of Fatigue Crack in Urban Metro Welded Bogie Frame
TL;DR: In this article, the authors focused on finding out the factors inducing the fatigue cracks initiated from the positioning block weld toe of metro bogie frame and found that the micro cracks induced by welding at the weld toe propagate to the spring sleeve under relatively high alternating dynamic stress, which is strongly influenced by the wheel polygon, rail corrugation and train running speed.
References
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Journal ArticleDOI
Contact and Rubbing of Flat Surfaces
TL;DR: In this article, the authors compared the deduced dependence of the experimental observables on the load with the experimental evidence and concluded that the most realistic model is one in which increasing the load increases both the number and size of the contact areas.
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Out-of-round railway wheels—wheel-rail contact forces and track response derived from field tests and numerical simulations:
TL;DR: In this paper, the influence of different types of railway wheel out-of-roundness (OOR) on the vertical dynamic wheel-rail contact force and track response is investigated through extensive field tests and numerical simulations.
Journal ArticleDOI
Vehicle-Track Dynamics in the Mid-Frequency Range
TL;DR: In this paper, the authors show the development starting with the massless wheelset model and ending with sophisticated elastic multibody system models for the vehicle and track, different mathematical approaches in frequency and time domain are compared.
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Train-Track Interaction and Mechanisms of Irregular Wear on Wheel and Rail Surfaces
TL;DR: In this paper, the authors surveyed the causes and consequences of wheel/rail wear that is non-uniform in magnitude around/along the running surface and suggested remedies to relieve the problems.
Journal ArticleDOI
Out-of-round railway wheels—a study of wheel polygonalization through simulation of three-dimensional wheel–rail interaction and wear
Anders Johansson,Clas Andersson +1 more
TL;DR: In this article, an existing multibody system model for simulation of general three-dimensional train-track interaction (accounting for frequencies up to several kHz) is extended with rolling contact mechanics according to FASTSIM.