Energy Harvesting from Vibrating Cantilever Structure of Different Base Materials using Piezoelectric Material: Theoretical and Experimental Approach

Energy conversion from one form to the other forms basis for many inventions. Non utilized energy of mechanical vibration has attracted researchers focus on harvesting vibrating structures. Piezoelectric material when attached a structure converts into electrical energy. Today, ranges micro level macro and obtained its importance in wide range real time application such as low powered electronic devices solar, wind hydroelectric systems, respectively. The current work presents detailed theoretical experimental study cantilever type beam embedded with piezoelectric different base materials understand harvesting. Euler Bernoulli theory based mathematical model is excited an impulse load at free end broader frequency spectrum analysis. Finally, proposed harvesters, specimens three are ranked their maximum voltage instantaneous power outputs experimentally given excitation. Out considered steel copper-based harvesters generated output 0.16mV 0.13mV, respectively which corresponds approximately 1.96nW 1.69nW, Aluminum-based harvester performed least among contributing 0.81nW.