Mathematical formulation and Analysis of Brake Judder 2023-01-0148
The Brake judder is a low-level vibration caused due to Disc Thickness Variation (DTV), Temperature, Brake Torque Variation (BTV), thermal degradation, hotspot etc. which is a major concern for the past decades in automobile manufacturers. To predict the judder performance, the modelling methods are proposed in terms of frequency and BTV respectively. In this study, a mathematical model is constructed by considering full brake assembly, tie rod, coupling rod, steering column, and steering wheel as a spring mass system for identifying judder frequency. Simulation is also performed to predict the occurrence of brake judder and those results are validated with theoretical results. Similarly, for calculating BTV a separate methodology is proposed in CAE and validated with experimental and theoretical results.
Citation: S, G., Bhumireddy, Y., Bourgeau, A., and Bhimchand, N., "Mathematical formulation and Analysis of Brake Judder," SAE Technical Paper 2023-01-0148, 2023, https://doi.org/10.4271/2023-01-0148. Download Citation