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Wear, Friction and NVH Characterization Using a Laboratory-Scale Tribometer
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 24, 2017 by SAE International in United States
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The current study presents some testing procedures which have been designed for friction and noise measurements of brake friction materials using a laboratory-scale tribometer. The uncertainties (errors) and precision of the measurements are also described in this paper. Some case studies related to friction, wear and noise related issues in brake friction materials were chosen to show the respective testing procedures. Through the error study, it was shown that the uncertainties of the lab. test bench are mainly associated with 3 variables: torque, force and sliding radius. The combined uncertainty of the friction measurements is less than or equal to ±1%, considering the typical operating range of the machine. The possibility of using two samples from a single brake pad also contributes to the reliability of the machine test and procedures. Finally, the laboratory-scale tribometer and testing procedures discussed in the present paper proved to be adequate to characterize friction, wear and Noise, Vibration and Harshness (NVH) related issues in brake friction materials.
- Rafael Paini Pavlak - Universidade Federal do Rio Grande do Sul
- Patric Daniel Neis - Universidade Federal do Rio Grande do Sul
- Jean Carlos Poletto - Universidade Federal do Rio Grande do Sul
- Liu Yesukai de Barros - Universidade Federal do Rio Grande do Sul
- Ney Francisco Ferreira - Universidade Federal do Rio Grande do Sul
CitationPavlak, R., Neis, P., Poletto, J., de Barros, L. et al., "Wear, Friction and NVH Characterization Using a Laboratory-Scale Tribometer," SAE Technical Paper 2017-36-0003, 2017, https://doi.org/10.4271/2017-36-0003.
Data Sets - Support Documents
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- Neis, P. D. “Development of a Multifunctional Tribometer with Independent Temperature Control of the Brake Disk”, Doctoral thesis, Joint PhD between Universidade Federal do Rio Grande do Sul (Brazil) and Ghent University (Belgium), 2012.
- Birch, T.W. “Automotive braking systems”, third ed., Delmar Cengage Learning, New York, 1998.
- Halderman, J.D.; Mitchell, C.D. Jr. “Automotive brake systems”, third ed., Pearson Education, New Jersey, 2004.
- Neis, P.D.; Ferreira, N.F.; Fekete, G.; Matozo, L.T.; Masotti, D. “Towards a better understanding of the structures existing on the surface of brake pads”, Tribology Internation 105 (2017) 135-147.
- Eriksson, M.; Bergman, F.; Jacobson, S. “On the nature of tribological contact in automotive brakes”, Wear 252 (2002) 26-36.
- Eriksson, M. “Friction and contact phenomena of disc brakes related to squeal” (doctoral thesis), Acta Universitatis Upsaliensis, Uppsala, Sweden, 2000.
- Neis, P.D.; Ferreira, N.F.; Sukumaran, J.; De Baets, P.; Ando, M.; Matozo, L.T.; Masotti, D. “Characterization of surface morphology and its correlation with friction performance of brake pads”, Int J Sustain Constr Des 6 (1) (2015).
- Barros, L.Y.; Neis, P.D.; Ferreira, N.F.; Pavlak, R.P.; Masotti, D.; Matozo, L.T.; Sukumaran, J.; De Baets, P.; Andó, M. “Morphological analysis of pad-disc system during braking operations”, Wear 352-353 (2016) 112-121.
- Ostermeyer, G.P.; Müller, M. “Dynamic interaction of friction and surface topography in brake systems”, Tribology International 39 (2006) 370-380.
- Matozo, L.T. “Estudo da relação entre propriedades de compósitos de fricção aplicados a sistemas de freio a disco e a propensão à ocorrência de squeal noise”, (PhD thesis), Federal University of Rio Grande do Sul, Brazil, 2012 (in Portuguese) 〈http://hdl.handle.net/10183/61378〉.
- EL-Tayeb, N.S.M.; Liew, K.W. “On the dry and wet sliding performance of potentially new frictional brake pad materials for automotive industry”, Wear 266 (2009) 275-287.
- Severin, D.; Dörsch, S. “Friction mechanism in industrial brakes”, Wear 249 (2001) 771-779.
- Barros, L.Y. “Análise da superfície de discos de freio automotivo durante frenagens” Undergraduate Thesis 2015.
- Jang, H.; Ko, K.; Kim, S. J.; Basch, R.H.; Fash, J. W. “The effect of metal fibers on the friction performance of automotive brake friction materials”, Wear 256 (2004) 406-414.
- Neis, P.D.; Ferreira, N.F.; Poletto, J.C.; Matozo, L.T.; Masotti, D. “Quantification of brake creep groan in vehicle tests and its relation with stick-slip obtained in laboratory tests”, Journal of Sound and Vibration 369 (2016) 63-76.
- Neis, P.D.; Ferreira, N.F.; Matozo, L.T.; Masotti, D.; Poletto, J.C.; “Definition of a suitable parameter for characterizing creep groan propensity in brake pads”, SAE Technical paper (ISSN 0148-7191), presented in 12th SAE Brazil International Brake Colloquium & Engineering Display, Brazil, 2015.