机译:Nonlinear piezoelectric vibration energy harvesting from a portal frame with two-to-one internal resonance
UTFPR Fed Univ Technol Parana, BR-83016210 Ponta Grossa, PR, Brazil;
UNESP Sao Paulo State Univ, Fac Mech Engn, CP 473, BR-17033360 Bauru, SP, Brazil;
UFFS Fed Univ Fronteira Sul, BR-97900000 Cerro Largo, RS, Brazil;
Energy harvesting; Nonlinear dynamics; Portal frame structure; Saturation phenomenon;