Experimental Evaluation of Railway Crew Impact on Tension Rails

Murzakayeva, Maral; Musayev, Janat; Kvashnin, Mikhail; Zhunisbekov, Seitbek; Zhauyt, Algazy; Azilkiyasheva, Marzhan

doi:10.18178/ijmerr.10.5.261-269

Cited by 4 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It, of course, will be a function of the position of the wheelset of the vehicle in the rail track since the rigidity of the track depends on this position [6].…”

Section: Methodsmentioning

confidence: 99%

Method for determining area of parametric resonances of wheelset of railway vehicle

Nikolaev,

Musayev,

Zhauyt

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

View full text Add to dashboard Cite

Resonance phenomena take place not only in the field of sound and electricity, but also in mechanics, optics, physics, it is known that resonance can be, for example, a cause of destruction of a bridge, tunnel under the action of periodic forces, train derailment due to intense vibrations of rolling stock. It is shown that in mechanical systems with one degree of freedom there can be only simple parametric resonance and the number is countable. The article proposes a method for determining areas of parametric resonances of a railway carriage wheel pair. On the basis of the trigonometric method main areas of parametric resonance of railway carriage wheel pair have been established. To study the vertical displacements of units and parts of the vehicle, the authors proposed a design scheme for a conditional uniaxial vehicle. The authors found that for a given range of parametric perturbation coefficient variation it is enough to consider only one harmonic, and secondly, the width of the resonance zone increases with growth of the parametric perturbation coefficient. The performed studies have established that the longitudinal uneven elasticity of the railway track creates sufficiently large transfer accelerations acting on the rolling stock units, and the maximum amplitude of the wheelset bouncing due to the longitudinal uneven elasticity of the track is in order of magnitude higher than the same indicator from the geometric unevenness on the rail tread surface. The results obtained in establishing the areas of parametric resonances of the wheelset of a railway vehicle will be useful in developing recommendations for normalizing the values of the uneven elasticity of the railway track.

show abstract

“…It, of course, will be a function of the position of the wheelset of the vehicle in the rail track since the rigidity of the track depends on this position [6].…”

Section: Methodsmentioning

confidence: 99%

Method for determining area of parametric resonances of wheelset of railway vehicle

Nikolaev,

Musayev,

Zhauyt

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

View full text Add to dashboard Cite

show abstract

“…The values of the generalized coordinates in this position are equal to zero. In translational motion, inertial forces act on the body; in rotational motion, the moments of inertial forces act on the body [2]. Consequently, the equations of the motion of the body in Cartesian coordinates will take the following form:…”

Section: Drawing Up Equations Of Vertical Oscillations Of a Diesel Lo...mentioning

confidence: 99%

“…Experimental studies and full-scale tests are also carried out with the aim of further developing the design theory and studying the behavior of rolling stock in operating conditions, especially at high speeds [1]. Experimental research is also necessary in the development of new theoretical methods for studying the strength and dynamics of locomotives and cars, as well as in refining existing theoretical methods for studying rolling stock [2]. Dynamic train (running) tests are one of the main stages of working out the design of a locomotive and assessing its dynamic and strength qualities.…”

Section: Introductionmentioning

confidence: 99%

“…During these tests, the driving characteristics of the locomotive are determined (running smoothness, stability against transverse overturning of the locomotive in curves, stability of the wheel on the rail), dynamic forces acting on the elements of the locomotive and the railway track and dynamic forces that determine the strength and reliability of the locomotive in long-term operation [7]. Our completed literature review shows that a number of works are devoted to testing railway rolling stock, which reveal many problems associated with full-scale testing of locomotives, cars and their individual components and parts [1][2][3]. To clarify various methods and approaches related to the experimental assessment of the interaction between track and rolling stock, studies of the dynamic characteristics of rolling stock and track are being conducted [4], reflecting the requirements of regulatory and technical documentation [5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Musayev,

Zhauyt,

Ismagulova

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

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 the modernization of existing ones, such as locomotives and wagons, in order to improve their strength and dynamic performance. This 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 the second stages of suspension and the coefficient of stability against derailment of the wheel from the rail were 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.

show abstract

“…However, the indicated percentages were obtained in the resonance zone, when the natural frequency coincides with the frequency of the external force. Therefore, by creating parametric actions in a mechanical system subject to external force or kinematic disturbances, providing the necessary phase shift between disturbances, we can increase the efficiency of the crew vibration protection system [4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of forced oscillations of wheelset bouncing from multiplicative perturbation specified by harmonic function

Nikolaev¹,

Musayev²,

Zhauyt³

2022

J., mech. eng. autom., control. syst.

Self Cite

View full text Add to dashboard Cite

The article analyzes the movement of a wheelset along a path that is unequal in length with wave wear of the rails. The authors studied the influence of a force external disturbance on the parametric system “wheel-rail”. The problem under consideration is solved on the basis of a mathematical model of the interaction of a wheel pair and an unequal track, taking into account the additive effect of unequal stiffness on a railway vehicle. It is shown that taking into account the longitudinal uneven elasticity of the railway track makes it possible to more accurately determine the resonant regions and evaluate the decrease or increase in the acceleration level and the amplitudes of bouncing of the unsprung mass of the rolling stock.

show abstract

Experimental Evaluation of Railway Crew Impact on Tension Rails

Cited by 4 publications

References 6 publications

Method for determining area of parametric resonances of wheelset of railway vehicle

Method for determining area of parametric resonances of wheelset of railway vehicle

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

Analysis of forced oscillations of wheelset bouncing from multiplicative perturbation specified by harmonic function

Contact Info

Product

Resources

About