graduate student
Moscow, Moscow, Russian Federation
UDC 629.4.027.3
Russian Library and Bibliographic Classification 392
A study of the dynamic qualities of a promising spring set under random vibrations is carried out using the example of a simplified single-mass model of a four-axle section of a freight electric locomotive. The solution of the vibration equation of the single-mass model is performed in the frequency domain with the determination of frequency characteristics relating displacement, dynamic force and acceleration of mass with disturbance. Graphs of disturbance spectral densities given by analytical expressions as the sum of low-frequency and high-frequency disturbances, as well as graphs of spectral densities of displacements, dynamic forces and accelerations obtained by Shannon formula are presented. To assess the dynamic qualities of a promising spring set, the maximum elastic and dissipative forces, dynamics coefficients, and maximum accelerations at different speeds were determined using graphs of the spectral densities of dynamic forces and accelerations.
dynamics, vibrations, frequency characteristics, suspension, damper
1. Savoskin AN, Vasiliev AP, Timchenko AYu. Comparative analysis of indicators of dynamic qualities and dissipative forces in hydraulic vibration dampers included for a simplified single-mass model of an electric locomotive according to standards and to the scheme of an elastic-protected damper. Izvestiya Transsiba. 2024;2(58):9-17.
2. Savoskin AN, Lavlinskaya NS, Ivanov PYu. Application of elastically protected hydraulic vibration damper in spring suspension of locomotives. Russian Railway Science Journal [Internet]. 2022;81(2):134-147. Available from: https://doi.org/10.21780/2223-9731-2022-81-2-134-147.
3. Levin BA, Savoskin AN, Akishin AA, Yershov AO. High-speed bogie for passenger carriage. RF Patent RU2613642C1. 12 Dec 2015.
4. Biryukov IV, Savoskin AN, Burchak GP. Mechanical part of a traction rolling stock: textbook. Moscow: Transport; 1992.
5. Kogan AYa, Zagitov ED, Poleshchuk IV. Random processes of interaction between track and rolling stock [Internet]. Moscow: RAS LLC; 2016. Available from: https://elibrary.ru/xcayob.
6. Savoskin A.N., Lavlinskaya N.S. Generation of geometric irregularities as random disturbances causing rail cab oscillations. Russian Railway Science Journal [Internet]. 2024;83(1):24-39. Available from: https://doi.org/10.21780/2223-9731-2024-83-1-24-39.
7. Russian Railways. Guidance Document PR 32. 68−96 Calculated track irregularities for use in research and design of passenger and freight cars. 04 Jun 1997.
8. Savoskin AN, Burchak GP, Bondarenko DA. Probabilistic methods in problems of dynamics, strength and reliability of rail carriages. Moscow: Alliance; 2022.
9. GOST 34939-2023. Locomotives. Requirements for bearing structure strength and dynamic properties. Moscow: Russian Institute of Standardization; 2023.
10. Savoskin AN. Selection of springs and vibration dampers connection diagram in railway vehicles spring suspension. Sciences of Europe. 2019;13:61-66.
