Design of a New Two-Axle Bogie for a High Speed Train

Savos’kin, A. N.; Akishin, A. A.; Iurchenko, Daniil

doi:10.4203/ccp.110.85

Cited by 3 publications

(2 citation statements)

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“…From (2) ÷ (4) it follows that the system has two frequencies at which resonant phenomena are possible. Frequencies of such processes can be determined from equation (4). In turn, the system for each coordinate 1 y , 2 y may be subject to the dynamic oscillation damping mode.…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…The development prospects of transport systems require that a special attention is given to developing a methodological basis for dynamics and operation of vehicles under intense dynamic loading. It is important to assess dynamic states of transport vehicles because this assessment plays an important role in developing principles and specific techniques to be implemented in the systems that ensure the general operational safety of transport vehicles and reliability of their major units and assemblies [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Features of dynamic loading of transport vehicles in intensive operation

Eliseev

Orlenko

2018

MATEC Web Conf.

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The paper proposes a method to construct mathematical models of technical objects exposed to intense vibrational interactions, which is typical for assemblies of transport vehicles. A technique has been developed to construct structural mathematical models in the form of structural diagrams, which are dynamically equivalent to automatic control systems. Analytical tools have been adopted from the theory of automatic control. The paper demonstrates the possibilities of changing dynamic properties of technical objects, design schemes of which are represented by mechanical oscillatory systems. Changes in the dynamic effects arising from the introduction of additional inertial couplings have been estimated. Effects of new dynamic properties have been considered. Analytic relations have been proposed for detailed estimates.

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Section: Mathematical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Features of dynamic loading of transport vehicles in intensive operation

Eliseev

Orlenko

2018

MATEC Web Conf.

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Choosing a Method for Studying Rail Vehicles’ Oscillations with Nonlinear Suspension Characteristics

Savos’kin

Lavlinskaya

2022

Lecture Notes in Networks and Systems

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Checking the adequacy of the method for generating a random process of disturbance of oscillations of rail carriages according to the impulse response of the forming filter

Savos’kin

Лавлинская

2021

Vestnik Naučno-issledovatelʹskogo instituta železnodorožnogo tr

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Usually, to study the vibrations of rail carriages, the equivalent geometric unevenness of the track obtained as a result of processing the records of the track measuring car is taken as a disturbance. Such a record contains a certain set of irregularity wavelengths, for example, 50, 25 and 12.5 m. However, when it is used to simulate disturbances at different operation speeds, these wavelengths will correspond to frequencies depending on the given speed of motion, which is not permissible, since a stable frequency range from 0.2 to 10 Hz is required to excite the vibrations of all the bodies included in the carriage. To eliminate this drawback, in the previously performed works it was proposed to generate a random process of geometric irregularities for a given operation speed by changing the set of wavelengths included in the irregularities. In this paper, based on the study of random oscillations of a simplified model of a rail carriage, as a system with one degree of freedom, the adequacy of the method for generating a random disturbance process is verified in two ways. In the first method, it was found that the characteristics of random oscillations of such a model, obtained in the time domain on the basis of numerical integration of the equation of motion when specifying the generated disturbance, have satisfactory convergence with similar characteristics found by the frequency method using Shannon's formula. In the second verification method, the cross-correlation function and the mutual spectral density between the disturbance and the bouncing oscillations were determined from the generated disturbance realization and obtained by numerical integration of the vibration process realization. Then, using the method of identifying the dynamic system, experimental amplitude and phase frequency characteristics were found, which showed satisfactory convergence with the corresponding calculated characteristics obtained by numerically solving the equation of oscillations of the model under study. On the basis of the results obtained, it was concluded that the considered method of generating a random process of disturbance is sufficiently adequate and that it can be applied to solve problems of the dynamics of rail carriages.

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Design of a New Two-Axle Bogie for a High Speed Train

Cited by 3 publications

References 0 publications

Features of dynamic loading of transport vehicles in intensive operation

Features of dynamic loading of transport vehicles in intensive operation

Choosing a Method for Studying Rail Vehicles’ Oscillations with Nonlinear Suspension Characteristics

Checking the adequacy of the method for generating a random process of disturbance of oscillations of rail carriages according to the impulse response of the forming filter

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