Analysis of Front and Rear Asymmetric Wheelset Applying Switch Control of Individual Motor and Active Coupler to Improve Running Performance of Independently Rotating Wheel Type Railway Vehicle

Cho, Yonho

doi:10.1007/s12555-019-0588-1

Cited by 1 publication

(2 citation statements)

References 17 publications

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“…In principle, the selected studies discussed in this review, as well as many others 14,[33][34][35][36][37][38] , address the two primary issues of IRWs, namely the excessive wear of the wheel/rail couple and an indefinite movement of a wheelset or a vehicle. These findings have prompted the researchers to ask two questions, whether it is possible to design an alternative technical solution for the wheelset to improvea railway vehicle's performance while it is curving and what the energy efficiency of such a technical solution is.…”

Section: The State Of the Art Of Railway Vehicles Equipped With Indep...mentioning

confidence: 99%

“…However, one disadvantage of standard wheelsets, where wheels are rigidly mounted to an axle, is their inability to facilitate low-floor trams. Recently, a low floor is increasingly important for the convenient use of urban rail vehicles in cities by individuals with disabilities, the elderly, and those with baby carriages 14 , 15 . In the case of a standard railway vehicle, the floor of a car undercarriage cannot be lowered due to the design of the standard wheelset, which comprises two railway wheels rigidly mounted on an axle.…”

Section: Introductionmentioning

confidence: 99%

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Kinematic running resistance of an urban rail vehicle undercarriage: a study of the impact of wheel design

Semenov

Mikhailov

Kovtanets

et al. 2023

Sci Rep

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Urban railway vehicles are important means of transport in towns and cities due to their high capacity, power source, and low running resistance, which make them efficient for operation. Although these properties are considered advantages, there is still room for improvement in their operational efficiency. The main objective of this article is to investigate the impact of railway wheel design on the level of kinematic running resistance, which is expressed as the amount of mechanical energy losses during the interaction of wheels with rails. This research focuses on simulation computations of two variants of wheel design schemes: the traditional design scheme (TKS) and a perspective design scheme (PKS) characterized by a rotating flange independently of the wheel tread surface. Two undercarriage multibody models have been created, one with TKS and one with PKS, and simulation computations have been performed for running speeds of 10 km/h, 20 km/h, 30 km/h, and 40 km/h on track models in curves with radii of 20, 50, 100, 150, 200, and 250 m. The evaluated indicators affecting the level of mechanical energy losses were creep forces, slip velocities, and average power. The most important findings of this study are that the PKS design scheme resulted in lower values of all assessed parameters.

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Section: The State Of the Art Of Railway Vehicles Equipped With Indep...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Kinematic running resistance of an urban rail vehicle undercarriage: a study of the impact of wheel design

Semenov

Mikhailov

Kovtanets

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

Analysis of Front and Rear Asymmetric Wheelset Applying Switch Control of Individual Motor and Active Coupler to Improve Running Performance of Independently Rotating Wheel Type Railway Vehicle

Cited by 1 publication

References 17 publications

Kinematic running resistance of an urban rail vehicle undercarriage: a study of the impact of wheel design

Kinematic running resistance of an urban rail vehicle undercarriage: a study of the impact of wheel design

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