Mode Coupling Instabilities Induced by a Periodic Coefficient of Friction 2010-01-1687
To predict and minimize squeal propensity in brake systems, numerous models, which perform friction induced vibration, are available. However, today there is no model that can explain satisfactorily the dynamic behavior of brake systems. We argue that this is - among other effects - because existing models are based on decaying or constant coefficient of friction, although many investigations indicate rich dynamics of the coefficient of friction. Stability analysis of linear differential equations with periodic coefficients shows that instability regions change with rising amplitude of the periodic coefficients. If the periodic coefficient corresponds to the coefficient of friction, its periodicity can lower the stability of a minimal model.
Citation: Ostermeyer, G. and Graf, M., "Mode Coupling Instabilities Induced by a Periodic Coefficient of Friction," SAE Int. J. Passeng. Cars – Mech. Syst. 3(2):31-37, 2010, https://doi.org/10.4271/2010-01-1687. Download Citation
Author(s):
Georg P. Ostermeyer, Matthias Graf
Affiliated:
Technical Univ. of Braunschweig, Institute of Dynamics and Vibration
Pages: 7
Event:
SAE 2010 Annual Brake Colloquium And Engineering Display
ISSN:
1946-3995
e-ISSN:
1946-4002
Also in:
SAE International Journal of Passenger Cars - Mechanical Systems-V119-6, SAE International Journal of Passenger Cars - Mechanical Systems-V119-6EJ
Related Topics:
Braking systems
Noise
Vibration
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
