THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

online first only

Pressure influence on heating of ventilating disc brakes for passenger cars

ABSTRACT
The braking system is one of the most important elements in vehicle systems from the aspect of vehicle safety, besides the steering system and the IC engine. During the braking process, the disc and pads absorb a large amount of kinetic energy that converted to heat. Owing to this frictional heating, it is necessary to compute the temperature distribution that will be appeared during the braking process, which is the main goal of this research paper. There are many factors that can be influenced to the distribution of frictional heat generated. One of the significant factors is the applied pressure by the brake pad on the braking disc. The results proved that when increased the applied pressure then the frictional heat generated increased too. It was developed a new finite element model based on observed data from real vehicle. It was used ANSYS/Workbench 14.5 software to perform the numerical analysis, module Transient Structural. Parts that are the most disposed to the thermal stress are braking pads. Also, it was found time period from 0 - 0.1 s is the most critical period during the whole braking period, because in this period, temperature rises rapidly, the maximum temperature occurred at 1.338 s, and after that it falls.
KEYWORDS
PAPER SUBMITTED: 2019-06-08
PAPER REVISED: 2019-07-01
PAPER ACCEPTED: 2019-07-04
PUBLISHED ONLINE: 2019-08-10
DOI REFERENCE: https://doi.org/10.2298/TSCI190608314S
REFERENCES
  1. Janićijević, N., Janković, D., Todorović, J., Vehicle Design, Faculty of Mechanical Engineering, Belgrade, 1987 (in Serbian)
  2. Kennedy, E.F., Frictional Heating and Contact Temperatures, in: Modern Tribology Handbook Volume One Principles of Tribology (Ed. B. Bhushan), CRC Press, 2000, pp. 235-272
  3. Reif, K., Brakes, Brake Control and Driver Assistance Systems Function, Regulation and Components, Springer, 2014
  4. Aleksendrić, D., Duboka, Č., Braking Procedure Analysis оf а Pegs-Wing Ventilated Disk Brake Rotor, International Journal of Vehicle Systems Modelling and Testing, 1 (2006), 4, pp. 233-252
  5. Zhu, Z., et. al., Transient Thermo-Stress Field of Brake Shoe During Mine Hoist Emergency Braking, Transactions of the Canadian Society for Mechanical Engineering, 37 (2013) 4, pp. 1161-1175
  6. ***, Brembo S.p.A, www.brembo.com/de/Varie/Brembo_RacingAutoCatalogue.pdf
  7. Belhocine, A., Bouchetara, M., Thermomechanical Behaviour of Dry Contacts in Disc Brake Rotor with a Grey Cast Iron Composition, Thermal Science, 17 (2013), 2, pp. 599-609
  8. Baron Saiz, C., Ingrassia, T., Nigrelli, V., Ricotta, V., Thermal Stress Analysis of Different Full and Ventilated Disc Brakes, Frattura ed Integrità Strutturale, 34 (2015), pp. 608-621
  9. Belhocine, A. Omar, W. Z. W., CFD analysis of the brake disc and the wheel house through air flow: Predictions of Surface heat transfer coefficients (STHC) during braking operation, Journal of Mechanical Science and Technology, 32 (2018), 1, pp. 481-490
  10. Belhocine, A., Numerical Investigation of a Three-Dimensional Disc-Pad Model with and without thermal effects, Thermal Science, 19 (2015), 6, pp. 2195-2204
  11. Belhocine, A., FE prediction of thermal performance and stresses in an automotive disc brake system, The International Journal of Advanced Manufacturing Technology, 89 (2017), 9-12, pp 3563-3578
  12. Talati, F., Jalalifar, S., Analysis of Heat Conduction in a Disk Brake System, Heat Mass Transfer, 45 (2009), pp. 1047-1059
  13. Belhocine, A., et. al., Thermal analysis of both ventilated and full disc brake rotors with frictional heat generation, Applied and Computational Mechanics, 8 (2014), pp. 5-24
  14. Fan, J., et. al., Heat Engine Coupling Analysis on Caliper Disc Brake, 2011 International Conference on Mechatronic Science, Electric Engineering and Computer, Jilin, China, 2011, pp. 672-675
  15. Yang, X., et. al., Dynamic Properties of Disk Brake Based on Thermo-elastic Instability Theory, Proceedings of 2010 International Conference on Electrical and Control Engineering, Wuhan, China, 2010, pp. 2756-2759
  16. Breuer, B., Karlheinz, H. B., Brake Manual - Basics, Components, Systems, Vehicle Dynamics, Springer Fachmedien Wiesbaden, 2012 (in German)
  17. Stevens, K., Tirovic, M., Heat dissipation from a stationary brake disc - Part 1: Analytical Modelling and Experimental Investigations, Part C: Journal of Mechanical Engineering Science, 232 (2018), 9, pp. 1707-1733
  18. Lakkam, S., Puangcharoenchai, P., Suwantaroj, K., A Study of Heat Transfer on Front and Back Vented Brake Disc Affecting Vibration, Engineering journal, 21 (2017), 1, pp. 169-180
  19. Glišović, J., Theoretical and experimental research of high-frequency noise of disc brakes, Ph. D. thesis, Faculty of Engineering University of Kragujevac, Serbia, 2012
  20. Demić M., Lukić J. The theory of the movement of motor vehicles, Faculty of Mechanical Engineering, Kragujevac, 2011 (in Serbian)
  21. ***, Auto-data, www.auto-data.net/en/peugeot-207-1.4-vti-95hp-33967
  22. ANSYS Mechanical APDL Element Reference, ANSYS 15.0 Documentation, ANSYS, Inc
  23. ANSYS Contact Technology Guide, ANSYS Release 12.1 Documentation, ANSYS, Inc.
  24. ***, A U.S. Department of Energy National Laboratory Managed by the University of California, www-eng.lbl.gov/~als/FEA/ANSYS_V9_INFO/Workbench_Simulation_9.0_ Nonlin/ppt/AWS90_Structural_Nonlin_Ch03_Contact.ppt
  25. Stojanović, N., Glišović, J., Structural and thermal analysis of heavy vehicles' disc brakes, Mobility & Vehicle Mechanics, 42 (2016), 1, pp. 9-16.
  26. Jassim, M. , Yousif , A., AL-Alawi, A., An Investigation into the Behaviour of Disc Blake Wear, Al-Khwarizmi Engineering Journal, 3(2007), 2, pp. 49-66.
  27. Talati, F., Jalalifar, S., Analysis of heat conduction in a disk brake system, Heat Mass Transfer, 45 (2009), pp. 1047-1059