Hydroelastic response and energy harvesting potential of flexible piezoelectric beams in viscous flow

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Flapping dynamics of an inverted flag in a uniform flow (2015, background): “Many researchers have focused on developing piezoelectric devices to improve the energy harvesting efficiency (Loreto and Francesc, 2005; Shashank, 2007; Akaydin et al., 2010; Akcabay and Young, 2012).”
Energy harvesting efficiency of piezoelectric flags in axial flows (2012, background): “In this limit, which differs from the single-patch approach of Akcabay & Young [1], both quantities are continuous functions of S and T , and the piezoelectric coupling imposes that: Q = cV + χ∗ ∂θ ∂S , (1) M = B ∂θ ∂S − χ∗V, (2) where M is the total internal torque in the piezoelectric flag, and c ”
Energy harvesting by means of flow-induced vibrations on aerospace vehicles (2016, methodology): “Although the beam can undergo large deformations, the strains are assumed small, so that the linear Hooke’s law is used to relate the strains to the stresses [52].”