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Research Article Open Access
Brake squeal is a manifestation of friction-induced self-excited instability in disc brake systems. This study investigated non-smooth bifurcations and chaotic dynamics in disc brake systems and elucidated a chaotic control system. Decreasing squeal noise which is dependent on chaos, increases passengers comfort; consequently, suppressing chaos is crucial. First, synchronization was used to estimate the largest Lyapunov exponent to identify periodic and chaotic motions. Next, complex nonlinear behaviors were thoroughly observed for a range of parameter values in the bifurcation diagram. Rich dynamics of the disc brake system were studied using a bifurcation diagram, phase portraits, a Poincaré map, frequency spectra, and Lyapunov exponents. Finally, the proposed technique was applied to a chaotic disc brake system through the addition of an external input that is a dither signal. Simulation results demonstrated the feasibility of the proposed approach.
Disc brake, Synchronization, Nonlinear, Lyapunov exponent, Dither, Automation Devices, Automobile Engineer, Automotive Engineering, Automotive Industry, Computer Simulation, Control System, Diesel Engine, Dynamic Information, Engine, Engine Performance, Engineering Design, Flying Wheel, Fuel Economy, Helmet, Hydraulic Engineering, Ignititon System, Mathematical Model, Modular Architecture, Product Quality, Spark Ignition, Splitting Method, Aerodynamic Drag Reduction, Vehicles