Enhancing Disc Brake Performance: Investigating Squeal Noise, Wear, and the Application of Functionally Graded Materials in Brake Rotors

Disc brakes play a vital role in contemporary automotive braking systems, offering a dependable and effective means of decelerating or halting a vehicle. The disc brake assembly functions by converting the vehicle's kinetic energy into thermal energy through friction. Two key factors that greatly influence the brake assembly's performance and user experience are squeal noise and wear performance. This paper delves into the fundamental mechanisms behind squeal noise and assesses the wear performance of the disc brake assembly. Functionally graded materials (FGMs) are an innovative type of composite material, characterized by gradual variations in composition and structure throughout their volume, leading to changes in properties such as mechanical strength, thermal conductivity, and corrosion resistance. FGMs have emerged as a groundbreaking solution in the design and manufacturing of brake rotors, addressing significant challenges related to thermal stress, wear resistance, and overall performance. This study also evaluates the noise and wears performance of disc brake assemblies made with FGMs. The paper investigates the application of FGMs in brake rotors, highlighting their distinctive properties and the advantages they offer to automotive braking systems. The study underscores the importance of further research and development to fully leverage the benefits of FGMs in enhancing brake system performance. Keywords: FGM, Squeal Noise, Wear, Brake Rotor