Simulation of the Thermal Behavior of Cast Iron Brake Block during Braking Maneuvers
Abstract
:1. Introduction
2. Monitoring System Description
- The temperature of the cast iron brake blocks.
- The brake cylinder pressure.
- The accelerations on the axle-box and the bogie frame.
3. Thermal Model
4. FE Model
5. Results
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Physical Quantity | Value |
---|---|
Thermal conductivity, k—[W/m K] | 48 |
Density, ρ—[kg/m3] | 7100 |
Heat capacity, c—[J/kg K] | 520 |
Braking Maneuver | Braking Distance [m] | Initial Speed [km/h] | Final Speed [km/h] | Initial Block Temperature [°C] | Mean Pressure of the Brake Cylinder [bar] | Braking Duration [s] | Time Elapsed from Brake Activation to Reaching Maximum Temperature [s] |
---|---|---|---|---|---|---|---|
A | 786 | 95 | 33 | 23 | 1.12 | 47 | 271 |
B | 713 | 93 | 23 | 37 | 1.20 | 46 | 220 |
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Somà, A.; Aimar, M.; Zampieri, N. Simulation of the Thermal Behavior of Cast Iron Brake Block during Braking Maneuvers. Appl. Sci. 2021, 11, 5010. https://doi.org/10.3390/app11115010
Somà A, Aimar M, Zampieri N. Simulation of the Thermal Behavior of Cast Iron Brake Block during Braking Maneuvers. Applied Sciences. 2021; 11(11):5010. https://doi.org/10.3390/app11115010
Chicago/Turabian StyleSomà, Aurelio, Marco Aimar, and Nicolò Zampieri. 2021. "Simulation of the Thermal Behavior of Cast Iron Brake Block during Braking Maneuvers" Applied Sciences 11, no. 11: 5010. https://doi.org/10.3390/app11115010