Design and analysis of a d33 mode piezoelectric energy generator for vehicle braking system

Abstract A novel piezoelectric energy generator embedded in vehicle brake pads and excited by magnetic repulsion is developed. The made of a cylindrical magnet stack. generators are mounted on the backing plate pad through perforated friction layer. Slotted rotor with magnets equipped to ensure braking performance vehicle. During process slotted rotor, dynamic will be generated when overlapping area changing. two close each other, force proportionally changing magnets. As result between magnets, stack experience compressive forces, creating an electrical charge for generating energy. To illustrate voltage generation, mathematical model experimental verification established calculate electric output considering dissipation. harvesting evaluated simulating transient charging storage capacitor diode bridge, which was experimentally validated literature. influences dimensional material properties stack, speed, repulsion, diameter actuator, capacitance distance center actuator root mean square (RMS) power discussed. total RMS 0.0710 W can achieved thirty-six both inner outer within one caliper using APC850 (PZT4) material, 1.1226 PMN-PT-B (PT = 0.3–0.33) at 120 km h −1 speed This useful efficient practical applications during process.