BROADBAND ENERGY HARVESTING APPARATUS USING A MULTI DEGREE-OF-FREEDOM VIBRATING BODY

摘要

PURPOSE: A broadband energy harvesting apparatus is provided to expand resonance frequency band on external vibration. CONSTITUTION: A mass(10) is installed to vibrate in a multidegree of freedom. Both ends of the mass are connected to vertical bars(51,52). Piezoelectrics(41,42) are installed to vibrate with the mass by reacting the vibration of the mass. Two cantilevers(31,32) are installed in parallel with each other at the same height. Bearings(61,62) are installed in the connection part of the mass and vertical bar.