High speed stability of a railway vehicle equipped with independently rotating wheels

Kyryl’chuk, Oleg A.; Kalivoda, Jan; Neduzha, Larysa O.

doi:10.21495/91-8-473

Cited by 5 publications

(2 citation statements)

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“…Taking into account the predominant contribution of the kinematic movement resistance to the level of the overall resistance to the movement of the railway vehicle, another PKS technical solution that can significantly reduce the resistance to the movement of the railway vehicle in curved sections of the track and reduce the wear of the contact surfaces is the use of independently rotating wheels in the running gear [49,50]. A further development of the use of such technical solutions is, for example, the design of a rail vehicle wheel with the PKS wheels proposed and justified in [51,52], allowing the possibility of independent rotation of its supporting rolling surface and guide surface.…”

Section: Introductionmentioning

confidence: 99%

Improving the energy efficiency of a tram’s running gear

et al. 2023

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This research analyses the influence of some design features of an undercarriage of a tram on the energy efficiency in terms of mechanical energy losses during its operation. The work includes the comparison of results of the research from two main points of view, namely from a running gear design and a railway wheel design. Two variants of a tram’s bogie are investigated. A standard bogie and a bogie with a system that allows a radial adjustment of the wheelsets in curves. Two designs of a railway wheel are compared, a wheel with the traditional construction scheme and a wheel with a perspective construction scheme. The values of mechanical energy losses due to slippage in the contact between the wheels and rails are analysed. These losses are obtained with reference to a specific route and the value of the average power dissipated. Moreover, an analysis of advantages and disadvantages of bogie designs has made it possible to consider the most appropriate bogie design in terms of ensuring the energy efficiency. In this case, the bogie design with the wheels with the perspective construction scheme can be considered as the optimal option.

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Section: Introductionmentioning

confidence: 99%

Improving the energy efficiency of a tram’s running gear

et al. 2023

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“…Dynamic properties of a vehicle in the horizontal plane and side wear of the wheel flange and rail head depend on the wheel climbing angle on the rail, condition of the locomotive underframe, which can be effectively influenced by automatic control of the wheel movement process. Bogies with passive installation of the wheelsets are subjected to increased undulatory movement in the straight track sections and do not allow wheelset to turn in horizontal plane when passing the curvilinear track sections [2,3,[4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Research of Mathematical Model of Movement of Six-Axle Locomotives with Controllable Wheelsets Installation

Kliuiev

Bobyr

Vaičiūnas

et al. 2020

Lecture Notes in Intelligent Transportation and Infrastructure

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Research of mathematical model of movement of six-axial locomotive with controllable wheelsets installation. Based on the general system of nonlinear variable coefficient differential equations of the vehicle movement in a rail track with inequalities in plan, the mathematical model of movement dynamics of locomotive of improved design with the axial formula 30-30 as an object of automatic control of the wheelsets position in the rail track is considered. Movement simulation is performed on the example of a six-axle locomotive at the speeds of movement and parameters of the curvilinear track sections, which coincide with the conditions of the experiment presented in the thesis work of V. N. Yazykov. The article presents research results of the mathematical model of movement of the improved locomotive bogie with controllable wheelsets installation in the curvilinear track sections using the Matlab/Simulink software package. The results of experimental studies of the All-Russian Scientific-Research and Design Technological Institute of Rolling Stock and the performed theoretical studies show that the efficiency of the improved system for controlling the wheelset position is higher than that of the serial design, in all modes of movement. The improved system of automatic control of wheelsets position makes it possible to reduce guiding forces by 35%. The possibility of using the mathematical model of locomotive movement of the axial formula 30-30 of improved bogie design with axle-box links of adjustable length, taking into account the dynamics of the automatic control system of the wheelsets installation in the rail track, is theoretically substantiated. The theoretical research found out the reduction of lateral forces in the improved bogie design during the passage of curvilinear track sections. The use of the explored mathematical model of locomotive movement reduces the volume and complexity of research works, as well as increases the reliability of engineering calculations when designing new and improving existing designs of the locomotive underframe.

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