Investigation of the Influence of the Rolling Stock Dynamics on the Intensity of Using the Railway Track Elements

Bondarenko, I. O.; Neduzha, Larysa O.

doi:10.15802/stp2019/176661

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Contact interaction is used in models to simulate the interaction of side bearings, center platethrust center-pivot, and coupler-plate and coupler-auto coupler [13]. When describing the contact interaction of bodies, it is assumed that an infinite plane is associated with one of the contacting bodies, and a set of contact points is associated with the second body.…”

Section: Methodsmentioning

confidence: 99%

Modeling the Interaction of the Rolling Stock and the Track in the Emergency Braking Mode of a Passenger Train

Solonenko,

Musayev,

Zhunisbekov

et al. 2023

Preprint

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The article analyzes the transitional mode of movement of a passenger train caused by emergency braking by the driver. To study the possibility of derailment of passenger cars, a simulation model of the movement of a train consisting of a locomotive and twenty passenger cars was developed in the Universal Mechanism software environment, designed to study the dynamics and kinematics of mechanical systems, which include railway rolling stock. The developed model allows taking into account the longitudinal, transverse and vertical vibrations of all cars and locomotive. All bodies in the model are assumed to be absolutely rigid. The assumption of non-deformability of the bodies is based on the fact that the stiffness of the spring suspension and elastic connections is significantly less than the structural rigidity of the bogie frames and the bolster structure, and the frequency of elastic vibrations of these bodies is much higher than the frequency of their vibrations on the spring suspension. Passengers and cargo in a wagon are considered to be non-deformable and integral with the wagon body, similarly in the case of a locomotive body. Between the elements of the system, connections are involved that regulate certain relative movements of these elements.

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Section: Methodsmentioning

confidence: 99%

Modeling the Interaction of the Rolling Stock and the Track in the Emergency Braking Mode of a Passenger Train

Solonenko,

Musayev,

Zhunisbekov

et al. 2023

Preprint

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“…To address these limitations, we developed an approach that describes the vibration of railway structures under the influence of rolling stock using the theory of elastic waves [39,[41][42][43][44]. For this purpose, the physics of elastic wave propagation is described using geometric vectors that simulate the propagation of elastic waves in space and time (Figure 1).…”

Section: Theoretical Basis For a 'Closed' Measurement Systemmentioning

confidence: 99%

Novel ‘Closed’-System Approach for Monitoring the Technical Condition of Railway Tracks

Bondarenko,

Lukoševičius,

Neduzha

2024

Sustainability

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Assessing the technical condition of a railway track throughout its service life is crucial to ensuring functional safety. However, it is important to note that current approaches have theoretical and practical gaps that require attention. The purpose of this study is to discuss the reconceptualization of an integrated approach to assess changes in the technical condition of railway tracks caused by rolling stock over their service life. Improving existing systems for assessing the condition of the track can be achieved by modifying the model concept and, subsequently, the measurement and assessment procedures. This paper presents an alternative method for addressing technical issues related to the monitoring and diagnosis of railway tracks, with a particular focus on natural phenomena: energy transfer by elastic waves. The primary aim of this work is to propose an approach for designing a ‘closed’ measurement system that enables tracking of the cause-and-effect relationship. This system takes into account both the elastic dissipative characteristics of the track–rolling stock interaction and the influence of the dynamics of various components in the ‘train-track’ system.

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“…(d) next, the sensor must be strongly pressed against the surface previously prepared for installation [12]. It is important during the installation of the sensor to avoid the occurrence of air and bubbles between the sensor and the surface to be glued, it is necessary to press the sensor completely against the surface and hold for at least 30 seconds.…”

Section: Installation Of Sensors Consists Of the Following Stepsmentioning

confidence: 99%

Theory and Practice of Determining the Dynamic Performance of Traction Rolling Stock

Musayev,

Zhauyt,

Ismagulov

et al. 2023

Preprint

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In the interaction of the rolling stock and the upper structure of the railway track, intense dynamic loads occur. They have a destructive effect both on the parts of the rolling stock and on the elements of the superstructure of the track. In order to develop a durable, rational and reliably functioning design of cars and locomotives with good dynamic properties and good indicators of the impact of rolling stock on the railway track, along with theoretical computational studies, experimental studies are also required, which are usually the final stage in the design and implementation of rolling stock or modernization of existing ones. Locomotives and wagons in order to improve their strength and dynamic performance. The article presents the results of field tests to determine the dynamic performance of the type CKD6e diesel locomotive. The description of the preparation of the CKD6e shunting locomotive for testing is given. An analysis of the dynamic performance of a diesel locomotive during the passage of turnouts, on a straight section of the track and in a curve with a radius of 400 m, was carried out. The studies performed showed that the minimum value of the stability factor against wheel derailment on a straight section of the track is significantly higher than the standard value. The experimentally obtained ratio of frame forces to the static load from the wheelset on the rails, the coefficients of vertical dynamics of the first and second stages of suspension and the coefficient of stability against derailment of the wheel from the rail, registered on the track section in a curve with a radius of 400 m) meet the current requirements. A calculation scheme and equations of vertical oscillations are proposed, an analysis is carried out according to the graphs of movements of bogies and a locomotive body when moving along irregularities of different lengths at different speeds.

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Investigation of the Influence of the Rolling Stock Dynamics on the Intensity of Using the Railway Track Elements

Cited by 6 publications

References 17 publications

Modeling the Interaction of the Rolling Stock and the Track in the Emergency Braking Mode of a Passenger Train

Modeling the Interaction of the Rolling Stock and the Track in the Emergency Braking Mode of a Passenger Train

Novel ‘Closed’-System Approach for Monitoring the Technical Condition of Railway Tracks

Theory and Practice of Determining the Dynamic Performance of Traction Rolling Stock

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