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Investigation Of High-Frequency Squeal In A Disc Brake System Using A Friction Layer-Based Coupling Stiffness, Manish Paliwal, Ajay Mahajan, J. Don, Tsuchin Chu, Peter Filip
Investigation Of High-Frequency Squeal In A Disc Brake System Using A Friction Layer-Based Coupling Stiffness, Manish Paliwal, Ajay Mahajan, J. Don, Tsuchin Chu, Peter Filip
Dr. Ajay Mahajan
This paper presents a two degree of freedom model for disk brake systems that makes use of the concept of a friction layer-based coupling stiffness. This model is then used to investigate noise and vibration, especially high-frequency squeal. It is shown that for automotive brake systems, the friction layer plays a significant role in the performance characteristics. Hence, the coupling stiffness between the brake pad and the rotor is modelled as a combination of the elastic stiffness of the friction layer superimposed on the coupling modal stiffness of the brake-pad combination. The elastic properties of the friction layer are obtained …
Analysis Of High Frequency Squeal In A Disc-Brake System Using A Stick-Slip Friction Model, Manish Paliwal, Ajay Mahajan, Peter Filip
Analysis Of High Frequency Squeal In A Disc-Brake System Using A Stick-Slip Friction Model, Manish Paliwal, Ajay Mahajan, Peter Filip
Dr. Ajay Mahajan
This paper presents a two degree of freedom (2-DOF) stick-slip friction model for studying the effect of contact stiffness on the stability of the system. It is shown that the stability is not only a function of non-linear variation in the friction force provide by stick-slip but also depends on the variation in stiffness of contact due to the formation of friction layers on the surface of the rotor and the brake pad. Parametric studies have been presented to show the effect of variation in coefficient of friction and contact stiffness on the system stability.