Research into frictional interaction between the magnetized rolling elements
| Autor: | Oleksandr Volkov, Volodymyr Stefanov, Ivan Hrunyk, Dmytro Onopreychuk, Sergey Voronin |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
020209 energy Rolling resistance Energy Engineering and Power Technology 02 engineering and technology Surface finish Industrial and Manufacturing Engineering Quantitative Biology::Cell Behavior Magnetization 0203 mechanical engineering Management of Technology and Innovation 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Applied Mathematics Mechanical Engineering Magnetostriction Interaction energy Adhesion Mechanics Tribology Physics::Classical Physics Computer Science Applications Magnetic field 020303 mechanical engineering & transports Classical mechanics Control and Systems Engineering |
| Zdroj: | Eastern-European Journal of Enterprise Technologies. 5:11-16 |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2017.109523 |
| Popis: | Results are presented of theoretical and experimental studies into effect of external magnetic field on the changes in adhesion parameters in a contact between magnetized steel rolling elements when they brought to each other to the level of atomic roughness. In theoretical studies, we calculated the interaction energy, adhesion force, friction and adhesion coefficient between magnetized steel rolling elements. The calculations are based on the general law of interaction between systems of charged particles, described by the Lennard-Jones potential, which takes into account both repulsion forces and attraction forces of these particles. A mathematical model was proposed for the calculation of force and coefficient of adhesion between steel rolling elements, taking into account magnetostrictive phenomena in the surface layers of a metal when magnetized by a constant magnetic field. The calculation of force and coefficient of adhesion was performed on the example of interaction between a wheel of a locomotive and a rail; the proposed model, however, could be applied to other elements of rolling friction. The technique and results of experimental studies are presented of the effect of external magnetic field on the coefficient of adhesion in the friction model of contact “wheel of a locomotive ‒ rail”. According to the results, magnetization of metal rolling elements leads to a significant, up to 36 %, increase in adhesion forces, which is important from the point of view of development and implementation of methods to control adhesion in similar tribological systems |
| Databáze: | OpenAIRE |
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