Improving the efficiency of the path - rolling stock system based on the implementation of anisotropic frictional bonds

Abstract

Unlike the materials widely represented in domestic and foreign scientific, technical and reference literature, the article theoretically substantiates the need to take into account in laboratory and bench tests of mechanical systems with friction units the presence and interconnection of dynamic processes occurring in a frictional contact and in a mechanical quasilinear subsystem; ensure identical: parameters of macro- and micro-roughness of contacting surfaces, frequencies and forms of natural vibrations, physical and mechanical properties of tribocontacts, as well as dynamic (integral) characteristics of a natural object and its physical model. The article presents the methods of physical and mathematical modeling and tribospectral identification of friction processes. The features of these methods and an example of dynamic monitoring of a mobile mechanical system using the example of a friction system: “way - rolling stock” are consideredThe first section in your paper.

Increasing the Wear Resistance of a Polymer-Coated Radial Bearing Running on a Micropolar Lubricant

“…Для подшипников скольжения, смазываемых антифрикционными полимерными покрытиями в гидродинамическом режиме смазывания, имеется значительное число работ [2][3][4][5][6][7][8][9], однако для расширения и конкретизации исследований применительно к трибосопряжениям технологических машин, работающих в условиях действия ударных и вибрационных нагрузок, повышенных эксплуатационных и низких климатических температур, абразивного и коррозионно-механического воздействия, наличия химически агрессивных сред, возникает необходимость учета целого ряда особенностей подобных трибосистем [10][11][12][13][14][15][16][17].…”

Modeling of a Railway Sanding System Using Vibration Fluidization

“…The authors' works show that in order to increase the coupling properties of traction rolling stock, it is advisable to provide a continuous sand delivery to the wheel-rail contact area [1][2][3]. It is necessary to ensure the system performance not only as a mass flow rate per unit of time, but also as a mass flow rate per running meter of the track [4][5][6][7]. In addition, the sand feeding system must be controlled by the mass flow rate of sand.…”