A Study of Improving Running Safety of a Railway Wagon with an Independently Rotating Wheel’s Flange

Mikhailov, Evgeny; Semenov, Stanislav; Shvornikova, Hanna; Gerlici, Juraj; Kovtanets, Maxim; Dižo, Ján; Blatnický, Miroslav; Harušinec, Jozef

doi:10.3390/sym13101955

Cited by 9 publications

(12 citation statements)

References 53 publications

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“…To investigate the effects of the PKS wheel design on running resistance, various studies have been conducted. These studies have revealed that the PKS wheel design has a positive impact not only on the wear of the wheel/rail surfaces and noise reduction but also on the overall running safety of the railway vehicle 47 .…”

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

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

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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%

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

Self Cite

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“…The percentage of low floor occupancy in a tram vehicle may vary and depends on, inter alia, the requirements formulated by the contracting authority or the condition of the track infrastructure on which the tram vehicle is to be operated [37,38].…”

Section: Design Solutions Of the Drive System Depending On The % Of L...mentioning

confidence: 99%

Electric Drive Solution for Low-Floor City Transport Trams

et al. 2022

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The urban transport system based on trams as the basic means of transport is one of the oldest systems of human transport in urban agglomerations. A tram is a more efficient, cheaper-to-operate, and greener means of transport compared to a bus. Striving to enable the use of this means of transport by elderly and disabled people, constructors and manufacturers of tram vehicles began to consider the requirements of the ordering parties—organizers of municipal public transport—in their solutions. The basic condition for disabled and elderly people to use tram transport is the possibility of safe and efficient entry and exit from the vehicle at tram stops. The fulfillment of this condition is possible only in the case of tram vehicles with a low 100% floor, and this, in turn, requires the replacement of trolleys with traditional wheelsets, that is, trolleys with independently rotating wheels, in the construction of the running gear. A wheelset with independently rotating wheels (IRW) does not have self-centering properties, and, thus, problems may arise with excessive wear of wheel and rail profiles and with continuous contact of the wheel flange with the rail, which may, consequently, lead to derailment. Driving a vehicle on the track in this case is governed by different laws. To prevent such phenomena, it is required to use the wheel drive control system, which allows for the stabilization of the vehicle movement on the track. Both the introduction of independently rotating wheels in the construction of the bogie and the drive connected to the wheel control system requires research and analysis to confirm the correctness of the assumptions made. The innovative solution of the control system in the case of a tram vehicle was patented and then the patent was implemented to produce a low-floor tram with 100% low floor by a Polish tram manufacturer. This article presents the results of the work carried out on the adoption of the concept of a running gear and drive solution for a low-floor tram vehicle with independently rotating wheels and the results of simulation analysis of the drive control of such a system, using mathematical models of the mechanical system (running gear) and the electrical system (motor drive control system).

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“…System failures in suburban and urban transport operations of industrial, scientific and educational centers result in a rapid increase in transportation time expenditures, material resource consumption, the number of road traffic incidents, and environmental degradation. In the literature, many scientific and research works have been devoted to these issues, for example: [9,10,16,20]. In particular, the issues of transport safety are presented in [17,30] and concerning the impact on the natural environment in [7,33] and operation costs and transportation quality [14,15].…”

Section: Introductionmentioning

confidence: 99%

Perspectives of Multifunctional Integrated Suburban-Urban Rail Transport Development

KAGRAMANIAN,

AULIN,

TRUBCHANINOVA

et al. 2023

SJSUT.ST

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Main requirements for rolling stock design and organization of the operating system are determined by membership in a certain transportation category for which such a transportation facility is designated. Thus, a specific feature of rolling stock operation is considered to the maximum extent, and functional correspondence with stated tasks is ensured. The significant disadvantage of the existing structure of rolling stock traffic is the necessity of time-space agreements of passenger traffic due to the necessity of shifting different transport types with the minimum time consumption. The solution to such an issue can be found in the development and use of a universal (multifunctional) integrated transport system. The list of issues arising during the creation of a multifunctional transport system can be funnelled into two groups: social and economic and organizational and technical. The first group is social and economic and shall conceptually solve issues of the multifunctional system feasibility for certain urban settlement conditions (conglomerate of urban settlements). The second group consists of organizational and technical issues. This study proposes to eliminate certain material issues in the sphere of suburban and urban traffic by the infrastructure improvement with the significant traffic increase and fluctuations.

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A Study of Improving Running Safety of a Railway Wagon with an Independently Rotating Wheel’s Flange

Cited by 9 publications

References 53 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

Electric Drive Solution for Low-Floor City Transport Trams

Perspectives of Multifunctional Integrated Suburban-Urban Rail Transport Development

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