Title of the article

VIBROACOUSTIC ACTIVITY OF THE FRICTIONAL PAIR DEPENDING ON THE DYNAMIC CHARACTERISTICS OF THEIR MATERIALS

Authors

Sergienko V.P., Candidate of Technical Sciences; V.A. Belyi Metal-Polymer Research Institute of NAS of Belarus, Gomel, the Republic of Belarus, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

Bukharov S.N., V.A. Belyi Metal-Polymer Research Institute of NAS of Belarus, Gomel, the Republic of Belarus

In the section ENGINEERING COMPONENTS
Year 2009 Issue 4 Pages 27-33
Type of article RAR Index UDK 621.891:621.894:534.1 Index BBK  
Abstract

The paper presents investigation results in the effect of structure and composition of frictional materials used in vehicle brake and transmission designs on their dynamic characteristics and vibroacoustic activity of friction joints. The data are reported on the dependence of dynamic characteristics upon the polymer matrix type, fibrous filler orientation and geometry, degree of binder solidification, and the presence of matrix phase plasticizers. It is shown that damping ability depends much on the load and temperature operation parameters, and may vary within a wide range in response to the material composition and structure. Damping ability of frictional materials has been studied in respect to its influence on vibration and noise generation and levels in the friction units. Test results of dry clutch on inertial dynamometer are cited that have supported the possibility of the effective reduction of vibroacoustic activity of the friction units by way of choosing optimal composition and structure of the friction material for friction pairs.

Keywords

Vehicle brake, vibroacoustic activity, friction joints, dynamic characteristics, damping ability

   
Bibliography
  • Abendroth H., Tepper H. Worldwide Brake - Friction Material Testing Standards, Challenges, Trends. Proc. of the 7-th International symposium of friction products and materials, Yaroslavl, 2008, pp. 140-150.
  • Hoffmann N., Gaul L. Friction Induced Vibrations of Brakes: Research Fields and Activities. SAE paper 2008-01-2579, 2008.
  • Sergienko V.P. [et al.]. Issledovanie vlijanija sostava frikcionnyh materialov na vibroakusticheskuju aktivnost frikcionnyh par trenija [Research of influence of the composition of the friction material on the vibro-acoustic activity of friction friction pairs]. Aktual. vopr. tribologii: MNTK [Actual Tribology questions: IRTC], Samara, 2007, pp. 266-278.
  • Sergienko V.P., Bukharov S.N., Kupreev A.V. Vibracija i shum v tormoznyh sistemah mobilnyh mashin. Ch. I [Vibration and noise in brake systems of mobile machines. Part I]. Trenie i iznos [Friction and Wear], 2008, vol. 29, no. 3, pp. 306-314.
  • Lewis Т. Analysis and Control of Brake Noise. SAE Paper 872240, 1987.
  • Ghesquiere H. Brake Squeal Noise Analysis and Prediction. ImechE, 1992. no. 925060.
  • Schmalfuss C. Theoretische und experimentelle Untersuchung von Scheibenbremsen. Doctoral thesis, VDI Fortschritt-Bericht Reihe 12. 2002. 494 p.
  • Ahmed I. On the Analysis of Drum Brake Squeal Using Finite Element Methods Technique. SAE paper 2006-0-3467, 2006.
  • Sergienko V.P., Bukharov S.N., Kupreev A.V. A Study of the Influence of Structure of Composite materials on the Vibration of Frictional pairs. Proceedings of the 10th International Conference on Tribology SERBIATRIB'07, 2007, pp. 85-88.
  • Nishiwaki M. [at al.] A Study on Friction Materials for Brake Squeal Reduction by Nanotechnology. SAE 2008-01-2581, 2008.
  • Sergienko V.P., Bukharov S.N. Noise and Vibration in Frictional Joints of Machines. Tribologia, 2008, vol. 1, pp.. 81-89.
  • Sinou J.J., Jezequel L. Mode coupling instability in friction-induced vibrations and its dependency on system parameters including damping. Europ. J. Mech, 2007, no. 26, pp. 106-122.
  • Hoffmann N., Gaul L., Angew Z. The role of damping in mode-coupling type instability. Math. Mech. 83, 2003, pp. 524-534.
  • Earles S., Chambers P. Disc brake squeal noise generation: predicting its dependency on system parameters including damping. Int. J. Veh. Design 8, 1987, pp. 538-552.
  • Kragelskiy I.V, Gittis N.V. Frikcionnye avtokolebanija [Frictional self-excited vibrations]. Moscow, Nauka Publ., 1987.
  • Ostermeyer G.P. On tangential friction induced vibrations in brake systems. SAE Paper 2008-01-2850.
  • Nashir A., Dzhouns D., Khenderson D. Dempfirovanie kolebanij [Damping]. Moscow, Mir Publ., 1988.
  • U.Wagner [et al.] Brake squeal: Modeling and Experiments. VDI-Tagung Schwingungen in Antrieben 2003. Messung, Simulation, Beeinflussung, and Uberwachung, 2003.
  • Ouyang H. [et al.] Numerical analysis of automotive disc brake squeal: a review. Int. J. Vehicle Noise and Vibration, 2005, vol. 1, no. 3/4, pp. 207-231.
  • Thompson J., Rhode A., Marks D. Inertia Simulation in Brake Dynamometer Testing. SAE Paper 2002-01-2601.