Amplitude-frequency characteristics of oscillations rolling stock braking mechanism including frequency ratio
https://doi.org/10.46973/0201-727X-2023-1-22
Abstract
Rolling stock braking devices differ from devices used in other types of transport due to the presence of a transmission mechanism in the drive. The multiplicity of the clamping mechanism provides not only an increase in the clamping force in the working pairs of the brake, but also causes an increase in the oscillatory process in the tribocontact of the braking devices. The article presents analytical dependencies for determining the angular movements of the lever and brake pad of the clamping mechanism of the braking device. Using mathematical modeling, it was found that with an increase in the frequency difference between the lever and the brake pad of the clamping mechanism of the power device, the number and amplitude of the rebound of the brake pad from the working surface of the disc increases, which leads to a decrease in the stability parameters of the brake performance.
About the Author
P. A. PolyakovRussian Federation
Polyakov Pavel Alexandrovich, Research and Production Center «Labor Protection», Leading Researcher; Chair «Transport Processes and Technological Complexes», Candidate of Engineering Sciences, Associate Professor
References
1. Kovtun, E. N. Dynamic characteristics of freight cars during train braking on curved sections of track / E. N. Kovtun, O. M. Markova, V. V. Maly // Transport of the Russian Federation. – 2013. – No. 3(46). – P. 69–74. – ISSN 1994-831X.
2. Nonlinear dynamics modeling and analysis of disc brake squeal considering acting process of brake force / X. Liu, Y. Zhao, Y. Shan, T. He // Journal of Vibroengineering. – 2014. – Vol. 16, No. 4. – P. 1964–1976.
3. He, R. Nonlinear Coupling Characteristics Analysis of Integrated System of Electromagnetic Brake and Frictional Brake of Car / R. He, D. Hu // Mathematical Problems in Engineering. – 2015. – Vol. 2015. – 14 p. – DOI 10.1155/2015/928152.
4. Sinou, J.-J. Transient non-linear dynamic analysis of automotive disc brake squeal – On the need to consider both stability and non-linear analysis / J.-J. Sinou // Mechanics Research Communications. – 2010. – Vol. 37, Iss. 1. – P. 96–105. – DOI 10.1016/j.mechrescom.2009.09.002.
5. Ahmad, H. A. Dynamic Braking Control for Accurate Train Braking Distance Estimation under Different Operating Conditions : Dissertation of Doctor of Philosophy In Mechanical Engineering / Husain A. Ahmad. – Virginia Polytechnic Institute and State University, USA, 2013. – 119 p.
6. Stability of oscillatory processes in the wheel's angular velocity during ABS operation / I. V. Álvarez, P. A. Kruchinin, A. F. Ramírez, J. J. O. Hidalgo // 2012 IEEE Ninth Electronics, Robotics and Automotive Mechanics Conference. – Cuernavaca, Mexico, 2012. – P. 255–260. – DOI 10.1109/CERMA.2012.48.
7. Polyakov, P. A. The influence of the design of the clamping mechanisms of the disc-pad brake on the vibrations arising in the contact of the friction unit / P. A. Polyakov // Proceedings of Tula State University. Technical Sciences. – 2022. – No. 5. – P. 408–420. – DOI 10.24412/2071-6168-2022-5-408-420.
8. Kosarevsky, V. V. Improving dynamic characteristics and increasing the durability of lever gears of brake systems : dissertation for the degree of Candidate of Technical Sciences : 05.02.02 / Kosarevsky Valery Valerievich. – Rostov-on-Don, 2020. – 184 p.
Review
For citations:
Polyakov P.A. Amplitude-frequency characteristics of oscillations rolling stock braking mechanism including frequency ratio. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2023;(1):22-31. (In Russ.) https://doi.org/10.46973/0201-727X-2023-1-22
JATS XML