Design of a Piezoelectric Energy-Harvesting Shock Absorber System for a Vehicle

作者：Lee Hongseok^*; Jang Hongseok; Park Jongkyu; Jeong Seongsu; Park Taegone; Choi Sungjoon

来源：Integrated Ferroelectrics, 2013, 141(1): 32-44.

DOI：10.1080/10584587.2013.778724

• Piezoelectric energy harvesting
• Shock absorber
• Vehicle
• Suspension
• Vibration

Only approximate to 20% of a vehicle's fuel consumption is used for overcoming air drag force and friction with the road. Vibration energy produced during driving is dissipated by shock absorbers in the vehicle suspension. A new Piezoelectric Energy-Harvesting Shock Absorber (PEHSA) system for vehicles has been developed to act as an energy harvester that converts vibration energy to electrical energy. Cylindrical piezoelectric transducers are combined with the cylinder of the shock absorber to generate electricity from changes in fluid pressure produced by piston vibrations. A multiphysics simulation was performed using COMSOL Multiphysics to determine the characteristics of the PEHSA system.

• 出版日期2013-1-1