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The influence of wheelset flexibility on polygonal wear of locomotive wheels

Published on May 1, 2019in Wear 2.95
· DOI :10.1016/j.wear.2019.05.032
Bo Peng (University of Huddersfield), Simon Iwnicki21
Estimated H-index: 21
(University of Huddersfield)
+ 2 AuthorsYunshi Zhao4
Estimated H-index: 4
(University of Huddersfield)
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Abstract
Abstract This paper reports on fundamental research to investigate the influence of wheelset flexibility on the development of wheel polygonization of a locomotive. After preparing a flexible wheelset model by importing a FE (Finite Element) model into the MBS (Multi-Body System) environment, the investigation work proceeded in 3 steps. Firstly, FRF (Frequency Response Function) of the contact responses against the track irregularity is analysed for a free wheelset and an on-track wheelset, with consideration of rotation effect. Secondly, the influence of the wheelset flexibility on the contact responses excited by white noise is investigated for straight and curved tracks. The final step is to check the influence of the wheelset flexibility on the development of wheel polygonization based on a developed prediction program for railway wheel polygonization. 6 scenarios are investigated with comparison between rigid and flexible wheelsets. Results show that, the wheelset flexibility cannot dominate the railway wheel polygonization in a general sense, unless some prerequisites are fulfilled to provide a suitable environment for the wheelset flexibility to be effectively and continually excited to fluctuate the contact responses, and thereby initiate wheel polygonization. The torsional mode of the wheelset can be effectively excited by stick-slip vibration due to saturated contact adhesion that can occur on track with small curve radii or by large traction torque. In this case, the developed wheel polygonization order will be exactly determined by the wheelset torsional modal frequency and the vehicle speed.
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Published on Jun 3, 2018in Vehicle System Dynamics 2.61
Gongquan Tao3
Estimated H-index: 3
(Southwest Jiaotong University),
Linfeng Wang2
Estimated H-index: 2
+ 2 AuthorsXuesong Jin12
Estimated H-index: 12
(Southwest Jiaotong University)
ABSTRACTExperiments were conducted at field sites to investigate the mechanism of the polygonal wear of electric locomotive wheels. The polygonal wear rule of electric locomotive wheels was obtained. Moreover, two on-track tests have been carried out to investigate the vibration characteristics of the electric locomotive's key components. The measurement results of wheels out-of-round show that most electric locomotive wheels exhibit polygonal wear. The main centre wavelength in the 1/3 octave b...
Published on Aug 1, 2017in Journal of Zhejiang University Science
Yue Wu1
Estimated H-index: 1
(Southwest Jiaotong University),
Xing Du2
Estimated H-index: 2
(Southwest Jiaotong University)
+ 2 AuthorsXuesong Jin12
Estimated H-index: 12
(Southwest Jiaotong University)
This paper presents a detailed investigation, via field experiment, into the mechanism of high-order polygonal wear of wheels of a new type of high-speed train. The investigation was carried out during the performance acceptance test of the train and its initial commercial operation. The investigation covered the performance acceptance test of 150 000 km and the commercial operation of about 150 000 km. In the performance acceptance test of the first stage of about 70 000 km, at 200–250 km/h wit...
Published on Jan 1, 2016
Liu Wei1
Estimated H-index: 1
(Southwest Jiaotong University),
Llingxiao Zong1
Estimated H-index: 1
(Southwest Jiaotong University)
+ 1 AuthorsXiaomin He1
Estimated H-index: 1
(Southwest Jiaotong University)
The reasons for wear of a wheel to create a polygon-shaped wheel on metro trains are analysed in this paper. Analysis of wear data leads to the conclusion that it is mainly structural vibration of the wheelset that causes the wear that creates polygon-shaped wheels. After analysing the characteristics of the structure and vibration of the vehicle, a model that considers wheelset flexibility is established. We then analyse the effects of flexible deformation of the wheelset on vertical force, cre...
Published on Oct 1, 2015in Journal of Sound and Vibration 3.12
A. Guiral3
Estimated H-index: 3
(Centro de Estudios e Investigaciones Técnicas de Gipuzkoa),
A. Alonso5
Estimated H-index: 5
(Centro de Estudios e Investigaciones Técnicas de Gipuzkoa),
J. G. Giménez8
Estimated H-index: 8
(University of Navarra)
Abstract Vehicle–track interaction in the mid- and high-frequency range has become an important issue for rolling-stock manufacturers, railway operators and administrations. Previous modelling approaches have been focused on the development of flexible wheelset–track systems based on the assumption that the unsprung masses are decoupled from the high-frequency dynamic behaviour of carbody and bogies. In this respect, the available flexible wheelset models account for gyroscopic and inertial effe...
Published on Jan 1, 2013in Journal of Mechanical Engineering
Wei Li1
Estimated H-index: 1
The polygonal wear mechanism of metro train wheels is investigated.An investigation is carried out through a detailed field measurement and a numerical analysis.Based on characteristics of the wheel polygonal wear measured from the sites,a series of measurements on the dynamical characteristics of the track and vehicle components are designed and implemented.The modal results of a wheelset are calculated by using the finite element method,and they approximately tally with the measurement results...
Published on Dec 1, 2012in Vehicle System Dynamics 2.61
Xuesong Jin12
Estimated H-index: 12
(Southwest Jiaotong University),
Lei Wu1
Estimated H-index: 1
(Southwest Jiaotong University)
+ 2 AuthorsLiang Ling8
Estimated H-index: 8
(Southwest Jiaotong University)
This paper presents a detailed investigation conducted into the mechanism of the polygonal wear of metro train wheels through extensive experiments conducted at the sites. The purpose of the experimental investigation is to determine from where the resonant frequency that causes the polygonal wear of the metro train wheels originates. The experiments include the model tests of a vehicle and its parts and the tracks, the dynamic behaviour test of the vehicle in operation and the observation test ...
Published on Oct 1, 2011in Journal of Sound and Vibration 3.12
Peter Torstensson7
Estimated H-index: 7
(Chalmers University of Technology),
Jens B. Nielsen84
Estimated H-index: 84
(Chalmers University of Technology),
Luis Baeza12
Estimated H-index: 12
(Polytechnic University of Valencia)
Vertical dynamic train-track interaction at high vehicle speeds is investigated in a frequency range from about 20 Hz to 2.5 kHz. The inertial effects due to wheel rotation are accounted for in the vehicle model by implementing a structural dynamics model of a rotating wheelset. Calculated wheel-rail contact forces using the flexible, rotating wheelset model are compared with contact forces based on rigid, non-rotating models. For a validation of the train-track interaction model, calculated con...
Published on Jul 1, 2008in Vehicle System Dynamics 2.61
Luis Baeza12
Estimated H-index: 12
(Polytechnic University of Valencia),
Juan Fayos4
Estimated H-index: 4
(Instituto de Biomecánica de Valencia)
+ 1 AuthorsRicardo Insa4
Estimated H-index: 4
(Polytechnic University of Valencia)
Some railway problems, such as the corrugation of rails or the impact caused by a wheelflat, are associated with a vehicle-track coupled dynamic phenomenon. Models for the analysis of these problems must account for the structural vibrations of the track components (rails and sleepers), but the most adequate approach for the wheelset has not been sufficiently investigated until present. The wheelset can be considered as an undeformable solid, as an elastic structure where the rotation effects ar...
Published on Aug 1, 2005in Vehicle System Dynamics 2.61
Anders Johansson12
Estimated H-index: 12
(Chalmers University of Technology),
Clas Andersson6
Estimated H-index: 6
(Chalmers University of Technology)
The objective of this study is to develop a tool for investigation of wheel tread polygonalization with radial irregularities including 1 to 20 wavelengths around the circumference of the wheel. Therefore, 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. Furthermore, the model is also modified to allow for general wheel–rail profile...
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