Energy harvesting from transverse galloping

By A. Barrero-Gil, G. Alonso, Á. Sanz-Andrés. 2010

462 citations recorded by the source corpus.

Some elastic bluff bodies under the action of a fluid flow can experience transverse galloping and lose stability if the flow velocity exceeds a critical value. For flow velocities higher than this critical value, there is an energy transfer from the flow to the body and the body develops an oscillatory motion. Usually, it is considered as an undesirable effect for civil or marine structures but here we will show that if the vibration is substantial, it can be used to extract useful energy from the surrounding flow. This paper explores analytically the potential use of transverse galloping in order to obtain energy. To this end, transverse galloping is described by a one-degree-of-freedom model where fluid forces obey the quasi-steady hypothesis. The influence of cross-section geometry and mechanical properties in the energy conversion factor is investigated.

Subfields: Computational Mechanics, Control and Systems Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/4f5e3d70d9189e0bfa2998acff9c6709367144de

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In Computational Mechanics

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Citations in the corpus

Performance analysis of galloping-based piezoaeroelastic energy harvesters with different cross-section geometries (2014, methodology): “…and moment The use of the quasi-steady hypothesis to evaluate the aerodynamic loads has been justified by the fact that the characteristic time scale of the oscillations is much larger than the characteristic time scale of the flow motion (Barrero-Gil et al., 2010; Naudascher and Rockwell, 1994).”
High-performance piezoelectric wind energy harvester with Y-shaped attachments (2019, background): “[38] studied the H-shaped, D-shaped and Triangular-shaped bluff bodies on 74 energy harvesting performance.”
Modeling and performance of electromagnetic energy harvesting from galloping oscillations (2015, methodology): “These linear and nonlinear coefficients are calculated by Barrero-Gil et al [11] and given in table 1 for different cross-section geometries.”
Piezoelectric coupling in energy-harvesting fluttering flexible plates: linear stability analysis and conversion efficiency (2011, background): “Such fundamental instability mechanisms as coupled-mode flutter of a heaving and pitching airfoil [3], vortex-induced vibrations [4] or transverse galloping of flexibly mounted structures [5] are at the core of prototypes or concepts of flow energy harvesters.”
The state-of-the-art review on energy harvesting from flow-induced vibrations (2020, background): “…system, and decoupling the equation: ( where the electrical damping and electrical stiffness are expressed as Barrero-Gil and Abdelkefi et al. [43, 44] pointed out that, the time scale of the structural oscillations characteristics of the galloping 2 π / ω is much larger than the characteristic…”
Energy harvesting by means of flow-induced vibrations on aerospace vehicles (2016, background): “For transverse galloping oscillations, a cubic polynomial form was employed to approximate the vertical fluid force coefficient [32, 64]     3 2 1 3 1 2 h t h t L U S a a U U                    (9)”
Energy harvesting efficiency of piezoelectric flags in axial flows (2012, unknown): “piezoelectric materials) conversion mechanisms [5, 7, 24, 27] .”