| Issue |
MATEC Web Conf.
Volume 390, 2024
3rd International Scientific and Practical Conference “Energy-Optimal Technologies, Logistic and Safety on Transport” (EOT-2023)
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|---|---|---|
| Article Number | 04006 | |
| Number of page(s) | 6 | |
| Section | Modeling and Computer Engineering, Modernization and Repair of Transport Facilities, Materials Science and Extension of the Resource of Structural Elements | |
| DOI | https://doi.org/10.1051/matecconf/202439004006 | |
| Published online | 24 January 2024 | |
Studying the diagrams “force - deformation” of a pneumatic spring of a modern rolling stock at increased speeds
1 Lviv Polytechnic National University, Department of railway transport, 79052. Ukraine, Lviv, 12-a Ivanny Blazhkevytch Str.
2 Lviv Research Institute of Forensic Expertise, 79024, Lviv, Lypynskoho Str., 54 Ukraine
* Corresponding author: kuzyshyn1993@gmail.com
The research object is a pneumatic spring of a modern rolling stock. Using a two - mass calculation scheme, the diagrams “force-deformation” of a pneumatic spring are designed at driving speed of 160-200 km/h and high-speed driving of 201-250 km/h. It is determined that when the diameter of the connecting pipeline is changed from 20 to 35 mm, the inclination angle of the diagram “force - deformation” of the pneumatic spring is changed at speed driving from 32 degrees up to 57 deg.; at high-speed driving from 30 deg. up to 48 deg. It is proposed to determine a pneumatic spring operation coefficient using the forms of the designed diagrams “force - deformation.” Studying the specified coefficient in the speed range from 160 to 250 km/h, and the connecting pipeline diameter from 20 to 35 mm showed that the values of the pneumatic spring operation coefficient vary from 0.089 to 0.24, and the dependencies are nonlinear. Using the pneumatic spring operation coefficient will make it possible to further evaluate the pneumatic spring suspension system operation depending on the operating conditions of the railway vehicle.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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