We study the dynamics of an elastic inverted pendulum with an horizontal excitation and imperfect clamping. Complex nonlinear responses of the system appear due to the existence of double potential wells and impacts. The simulation results are analysed by means of phase portraits and Fourier spectra. The results show clearly that increasing the distance between...

Vibration energy harvesting is proposed for a nonlinear electromechanical system. A mechanical resonator, which is realized as an inverted elastic pendulum excited by kinematic excitation, is characterized for a broad frequency band due to clearance and impact interactions. The moving frame induces pendulum beam deflection, and mechanical stress is converted into an electrical voltage by...