Investigation on adhesion characteristic of wheel/rail under the magnetic field condition

Wang, WJ; Hf, Zhang; Liu, QY; Zhu, Mankang; Jin, XS

doi:10.1177/1350650115606480

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…The calculation results and geometric characteristics of the wheel-rail tribosystem are displayed on the screen and saved to a file for further use [7][8][9][10]. The geometric parameters of the wheelset positions in the rail track are given in Table 1.…”

Section: Resultsmentioning

confidence: 99%

Building an information model in wheel-rail tribosystem control tasks

2021

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The issues of filling the information model with data on the state of the wheel-rail tribosystem are considered. The “Program for modeling the transverse position of a wheelset in a track” is used, and the main modules of the program are described. The geometrical parameters of the contact of the wheel profile with the rail profile are obtained. The values of the nominal contact of the wheel with the rail for the extreme and intermediate positions of the wheel pair in the rail track are calculated. The displacement of the wheelset in the rail track, its slope, and the width of the contact of the wheel with the rail, the gap between the wheel crest and the inner face of the rail are determined. The obtained data are compared with the results of the experiment.

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Section: Resultsmentioning

confidence: 99%

Building an information model in wheel-rail tribosystem control tasks

2021

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“…В работе [8] представлен стенд с источниками магнитного поля, расположенными на ободе колеса и воздействующими на контакт пар трения. Отметим, что такое расположение источников магнитного поля относительно зоны трения не является рациональным с точки зрения организации магнитной цепи.…”

Section: теоретический анализ проблемы и методы исследованияunclassified

Device for Researches of Magnetic Field Impact Upon “Wheel-Rail” Friction Pair Characteristics

Antipin

Воробьев²,

Maslov

et al. 2020

Bulletin of Bryansk State Technical University

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The paper is dedicated to the circuit diagram substantiation of the specialized roller bench for researches of the magnetic field impact upon wheel adhesion with a rail. On the basis of the analysis of the experimental plants available at present for the study of the contact interaction of wheels with rails it is defined that two-roller benches are the most efficient for the investigation of different outer factors impact upon wheel adhesion with a rail. Taking into account mentioned above there is offered an original design of the two-roller bench equipped with the device for friction area magnetization. Two cylinders with parallel axes are theoretically a friction pair. Taking into account the presence of a non-concurrency arisen at roller manufacturing and mounting a point contact is realized in the bench. A bench formation is carried out according to a modular approach with the installation of rotary magnetic conductors. For the support of the largest magnetization of a friction area in longitudinal and transverse directions and for the decrease of stray flux in the bench there is realized a series connection of roller friction area with the sources of a magnetizing force. For the substantiation of rotary magnetic conductor position choice regarding a friction area of bench rollers there is carried out an analysis of magnetic field distribution in the friction area depending on the location of magnetic conductors. On the basis of the investigation results it is defined that a change of magnetic conductor position changes the orientation of a magnetic field vector, at that a roller friction area is magnetized in transverse and longitudinal directions. In view of this the bench design offered allows investigating the impact of longitudinal and cross magnetic fields upon friction in the contact of a wheel with a rail. Furthermore, it is defined that at small values of an angle between the direction of a magnetic field vector and the plane of a roller friction area a possibility to exclude the effect of roller magnetic additional loading appears.

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“…Expediency of studies in the field of methods of influence on the parameters of adhesion in a contact of metallic rolling elements is obvious, since it is possible to achieve the desired changes [15,16]. However, high energy consumption and complexity of the implementation of these methods necessitate further research in this direction.…”

Section: O N O P R E Y C H U Kmentioning

confidence: 99%

“…Paper [16] shows how the coefficient of adhesion behaves when a magnetic field generated by permanent magnets is applied to rolling elements. The study implied the following: a different number of permanent magnets was placed along the side surfaces of one of contact rollers.…”

Section: O N O P R E Y C H U Kmentioning

confidence: 99%

“…The nature of binding forces will be electromagnetic in this case, and this means that the methods of influence on connecting forces must be of the same nature. Therefore, it is not a coincidence that the development of modern methods of control of friction and adhesion in rolling elements are based on the use of electric and magnetic fields [15,16].…”

Section: O N O P R E Y C H U Kmentioning

confidence: 99%

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