Energy harvesting in a nonlinear piezomagnetoelastic beam subjected to random excitation
Bistable piezomagnetoelastic generator subjected to random excitations is analyzed. Performance is enhanced when system oscillates around all stable equilibrium points. Numerical and experimental approaches show good qualitative agreement. A relationship between the variance of excitation and potential energy is defined. A desired region, where the performance of bistable system is enhanced, is defined.
energy harvesting nonlinearities random excitation piezoelectric material