Numerical Study for Brake Squeal by Machining Patterns on Frictional Surface
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Automotive brake noise has become a stubborn problem as automotive cars achieve higher driving torques, since that the increased torque induces the generation of severe noise dissipation during brake operation. Moreover, the global brake tuning market for achieving higher performance of the vehicle has expanded recently. The need to control the noise grows more in this connection. The tuning brake kits have employed cross-drilled and slotted machining pattern on the surface of the rotor. These designs have advantages to improve air ventilation, temperature control, and surface cleaning of brake pad. However, the effects of modal frequency by patterned rotor surfaces are rarely discussed, even if it is highly related with brake squeal phenomenon. Therefore, this study deals with the relationship between patterned surfaces and brake squeal through the numerical methods. The commercial software of a finite element analysis is employed for calculation by varying geometric design factors of each rotor pattern. As a result, the cross-drilled machining patterns are concluded to be an influential factor for in-plane mode frequency while the slotted patterns have more leverage for out-of-plane mode frequency.
Key WordsAutomotive brake Squeal Modal analysis Machining pattern Finite element method
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- Baker, A. and Ouyang, H. (2004). Contact Pressure Distributions by Simulated Structural Modifications. Braking 2004: Vehicle Braking and Chassis Control. John Wiley & Sons, Inc. Hoboken, New Jersey, USA.Google Scholar
- Brandl, S., Biermayer, W., Graf, B. and Resch, T. (2016). Hybrid vehicle’s NVH challenges and influences on the NVH development. SAE Paper No. 2016-01-1837.Google Scholar
- Carvajal, S., Wallner, D., Helfrich, R. and Klein, M. (2016). Excellent brake NVH comfort by simulation — Use of optimization methods to reduce squeal noise. SAE Paper No. 2016-01-1779.Google Scholar
- Chen, F., Mckillip, D., Luo, J. and Wu, S. (2004). Measurement and analysis of rotor in-plane mode induced disc brake squeal and beyond. SAE Paper No. 2004-01-2798.Google Scholar
- da Silva, J., Fulco, E., Varante, P. and do Nascimento, V., Diesel, F. N. and Boniatti, D. L. (2013). Numerical and experimental evaluation of brake squeal. SAE Paper No. 2013-36-0030.Google Scholar
- Hu, Y. and Nagy, L. (1997). Brake squeal analysis by using nonlinear transient finite element method. SAE Paper No. 971510.Google Scholar
- Nishiwaki, M. (1993). Generalized theory of brake noise. Proc. Institution of Mechanical Engineers, Part D: J. Automobile Engineering 207, 3, 195–202.Google Scholar
- Papinniemi, A., Zhao, J., Stanef, D. and Ding, J. (2005). An investigation of in-plane vibration modes in disc brake squeal noise. SAE Paper No. 2005-01-3923.Google Scholar
- Yang, M., Afaneh, A. and Blaschke, P. (2003). A study of disc brake high frequency squeals and disc in-plane/out-of-plane modes. SAE Paper No. 2003-01-1621.Google Scholar
- Yang, M. and Afeneh, A. (2004). Investigation of mounted disc brake in-plane and out-of-plane modes in brake squeal study. IMAC-XXII: Conf. & Exposition on Structural Dynamics, Dearborn, Michigan.Google Scholar