Vibration Control and Energy Harvesting Using Coupled Pendulum Absorbers

This paper analyzes the dynamics and energy harvesting of a resonantly excited single-degree-of-freedom linear system with an array of pendulums coupled by springs as absorbers. Energy generation along with vibration reduction gives added advantage of generating sufficient electrical energy to powerup portable electronics. Energy harvesting converts vibration into useful electrical energy using a suitable transduction method. The mathematical model is developed for the proposed model. The numerical method will be used to obtain the response of the system. The effect of multiple pendulums with and without coupling on frequency bandgap of the primary mass and bandwidth of harvested energy will be analyzed. The effect of various parameters on the performance will also be reported.