Network segmentations of smart plate structure with attached mass and dynamic motions

Torque sensing and energy harvesting based on phase shift in two-point magnetic plucking

“…They have been extensively studied for decades for their application as an energy source by harvesting vibration energy. 1 Indeed, advances in vibration-based piezoelectric energy harvesting have witnessed a dramatic rise from many aspects, including: (1) theoretical analysis of electromechanical response [2][3][4][5][6] and conversion efficiency for effective power normalization schemes; [7][8][9] (2) novel designs of harvester structures for broadband energy harvesting [10][11][12][13][14][15][16][17][18][19] and frequency up-conversion energy harvesters for low-frequency non-resonant excitations; [20][21][22][23][24][25] and (3) interface circuits for maximum power transfer to the load. [26][27][28][29][30][31][32][33][34][35] On the other hand, piezoelectric materials have been utilized as sensors in various applications, such as structural health monitoring.…”

Powering smart pipes with fluid flow: Effect of velocity profiles

“…In mechanical and electrical tuning systems, smart structures with the attachment of a proof mass and/or in combination with a shunt circuit, have been used to shift frequencies from high to low values in order to adapt to the vibration environment and give higher power output. These strategies have been explored using wide-ranging theoretical methods, such as circuit technique combinations [41], Rayleigh-Ritz methods [42], modal analysis methods [43], the weak-form technique [44], random vibration analysis [45,46], closed-form boundary value methods [47,48], analytical voltage-and chargetype Hamiltonian formulations [49], and electromechanical finite element analyses [50][51][52][53][54]. With an alternative strategy using the combination of electrical and mechanical tuning systems, others developed multiple piezoelectric bimorph beams connected electrically [55][56][57] and single piezoelectric beams with shunt control [44,58] in order to widen the multi-frequency band.…”

Nonlinear finite element system simulation of piezoelectric vibration-based energy harvesters

“…While being computationally expensive, the FEM allows for optimization of the electromechanical structure (Noh and Yoon, 2012; Park et al, 2012; Wein et al, 2013), for modeling of nonlinear electro-elastic behavior (Vu et al, 2007), for detailed material parameter analysis (Daniels et al, 2013), for the consideration of multiple segmented plate structures with different electric circuit connection patterns (Lumentut and Shu, 2018, 2021) and, for example, for the simulation of crack propagation (Abdollahi and Arias, 2012). Various approaches are introduced in the literature how to couple the simulation of electric circuits with an FE analysis of electromechanical structures.…”