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Mechanical interaction of the rail transport car and joint irregularity

Shpachuk Vladimir, Chuprynin Aleksandr, Suprun Tatiana, Kovalenko Andriy

Zeszyty Naukowe. Transport / Politechnika Śląska

2021

z. 113

173--189

Mechanical models of a transport system “carriage - track” while crossing a joint irregularity are proposed. An investigation was conducted on the peculiarities of static, shock and dynamic interaction between the four-axle car and the track, considering tram wheelsets motion features over joint irregularity. A method to solve the equations of a mathematical model of static, shock and dynamic interaction is developed. Numerical analysis is used to determine deflections of the facing rail under the first sleeper for each phase of motion depending on motion phases, and car load and speed.

Simulation of impact interaction of rail transport carriage in a butt roughness zone

Shpachuk Vladimir, Chuprynin Aleksandr, Daleka Vasily, Suprun Tatiana

Zeszyty Naukowe. Transport / Politechnika Śląska

2020

z. 106

141--152

Mechanical and mathematical models of mechanical multidimensional discrete-continuous systems “carriage – track” in terms of static and impact interaction in a butt roughness zone are proposed. Their interaction is investigated with the example of a four-axle car and a track for four motion phases in the place of isolated butt roughness. Parameters of static and impact interaction of the carriage with a track in a place of butt joint which takes into account operational and constructive factors are defined.