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…
Krystian Łygas, Piotr Wolszczak, Grzegorz Litak, Paweł Stączek Meccanica September 2019, Volume 54, Issue 11–12, pp 1689–1702 Abstract We study the dynamics of an elastic inverted pendulum with amplitude limiters excited horizontally. This particular model corresponds to a class of systems where a clearance is present naturally as an effect of imperfect clamping or it…
Krystian Łygas, Piotr Wolszczak, Grzegorz Litak MATEC Web of Conferences 148, 12003 (2018) Abstract We examine the response of an inverted pendulum excited harmonically with amplitude limiters. Such a nonlinear resonator is suggested to work in the transduction of ambient vibration energy into the electrical power through bending of the moving beam. Using a multibody…
Piotr Wolszczak, Grzegorz Litak , Krystian Łygas Me MATEC Web of Conferences 241, 01021 (2018) Abstract The efficiency of the mechanical energy harvesting with the use of vibrating elements can be improved by synchronizing stimulation vibrations and own linear frequencies of systems as well as super or sub harmonics induced by non-linear phenomena. The article…
Piotr Wolszczak, Krystian Łygas, Grzegorz Litak. Mechanical Systems and Signal Processing 107 (2018) 43–52 Abstract This study investigates dynamic responses of a nonlinear vibration energy harvester. The nonlinear mechanical resonator consists of a flexible beam moving like an inverted pendulum between amplitude limiters. It is coupled with a piezoelectric converter, and excited kinematically. Consequently, the…
