Flutter suppression of an airfoil using a nonlinear energy sink combined with a piezoelectric energy harvester

Zhang, Hang; Li, Zhiyuan; Yang, Zhichun; Zhou, Shengxi

doi:10.1016/j.cnsns.2023.107350

Cited by 14 publications

(4 citation statements)

References 48 publications

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“…Wind-induced vibrations can cause serious damage to buildings, bridges, and offshore structures. There are many scenarios that require protection from wind-induced vibration, such as bridge collapses [1,2], skyscraper wind-resistance design [3,4], arm masts of traffic lights [5,6] and road signs [7,8], cranes [9,10], aerofoils [11,12], and more. Traditional solutions for passive vibration suppression primarily involve the use of tuned mass dampers [13,14], nonlinear energy sink [15,16], etc.…”

Section: Introductionmentioning

confidence: 99%

Aeroelastic metastructure for simultaneously suppressing wind-induced vibration and energy harvesting under wind flows and base excitations

Chen,

Xu,

Zhao

2024

Smart Mater. Struct.

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This paper proposes an innovative dual-functional aeroelastic metastructure that effectively suppresses wind-induced structural vibrations under either pure aerodynamic galloping or concurrent galloping and base excitations, while simultaneously harnessing the vibratory energy to potentially allow for self-powered onboard low-power sensing applications. Two configurations are theoretically and experimentally analysed and compared, one consisting of simply regular locally resonating masses subjected to no external forces, while the other comprising locally resonating bluff bodies which experience additional aerodynamic galloping forces. Numerical investigation is conducted based on an established aero-electro-mechanically coupled model. Wind tunnel wind tunnel and base vibration experiments are carried out using a fabricated aeroelastic metastructure prototype to characterize the energy transfer mechanisms and validate the numerical results. The mutual effects of key system parameters, including the frequency ratio, mass ratio, load resistance and electromechanical coupling strength, on the dual-functional capabilities are examined, providing a comprehensive design guideline for efficiently enhancing the energy transfer and conversion. Experimentally, the galloping displacement of the primary structure is attenuated by 78% with a measured power output of 2.63mW from a single auxiliary oscillator at a wind speed of 8m/s. This research opens new possibilities for designing novel metastructures in practical scenarios where both wind-induced vibration suppression and energy harvesting are crucial.

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Section: Introductionmentioning

confidence: 99%

Aeroelastic metastructure for simultaneously suppressing wind-induced vibration and energy harvesting under wind flows and base excitations

Chen,

Xu,

Zhao

2024

Smart Mater. Struct.

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“…For example, Franzini et al [34] employed a bistable piezoelectric NES for both vibration reduction and energy harvesting within a system. Zhang et al [35] experimentally verified the application of NES and piezoelectric energy harvester for flutter suppression in airfoil structures. Li et al [36] investigated the effects of a nonlinear device for simultaneous vibration absorption and energy harvesting.…”

Section: Introductionmentioning

confidence: 99%

A viscoelastic nonlinear energy sink with an electromagnetic energy harvester: Narrow-band random response

Liao 廖,

Sun 孙,

Liu 刘

2024

Chinese Phys. B

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Nonlinear energy sink is a passive energy absorption device that surpasses linear dampers, and has gained significant attention in various fields of vibration suppression. This is owing to its capacity to offer high vibration attenuation and robustness across a wide frequency spectrum. Energy harvester is a device employed to convert kinetic energy into usable electric energy. In this paper, we propose an electromagnetic energy harvester enhanced viscoelastic nonlinear energy sink (VNES) to achieve passive vibration suppression and energy harvesting simultaneously. A critical departure from prior studies is the investigation of the stochastic P-bifurcation of the electromechanically coupled VNES system under narrow-band random excitation. Initially, approximate analytical solutions are derived using a combination of multiple-scale method and a perturbation approach. The substantial agreement between theoretical analysis solutions and numerical solutions obtained from Monte Carlo simulation underscores the method’s high degree of validity. Furthermore, the effects of system parameters on system responses are carefully examined. Additionally, we demonstrate that stochastic P-bifurcation can be induced by system parameters, which is further verified by the steady-state density functions of displacement. Lastly, we analyze the impacts of various parameters on mean square current and mean output power, crucial for selecting suitable parameters to enhance energy harvesting performance.

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“…The cubic NES was also analyzed in Silva et al (2023), in which a dynamic characterization was carried through asymptotic analysis of the airfoil-NES bifurcations and TET parametric analysis. Lastly, cubic-piezoelectric hybrid NES for energy harvesting and passive vibration suppression were studied in Fasihi et al (2022) and Zhang et al (2023).…”

Section: Introductionmentioning

confidence: 99%

Passive flutter suppression with rotary nonlinear energy sink

Araujo,

Marques,

Silva

2023

Preprint

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The control of aeroelastic phenomena, such as flutter, is of great interest due to its high amplitude self-excited characteristic. Nonlinear Energy Sinks (NES) are vibration absorbers whose nonlinear coupling to the structure contributes to broad excitation ranges for passive suppression. This paper investigates the attachment of a rotary-type NES (RNES) to an aeroelastic typical section to suppress nonlinear flutter oscillations passively. An unsteady aerodynamic loads model is used based on the Theodorsen and Wagner approaches. Pitching structural nonlinearity is added, inducing limit cycle oscillations in the airfoil. The system is modeled and numerically simulated. A dynamic characterization is done, obtaining the mechanisms of action of RNES through a regime identification, and its typical bifurcation behavior is accessed. A parametric analysis based on the system bifurcation over different RNES configurations is used to understand how each design parameter influences vibration mitigation performance and how absorption regimes correlate with RNES effectiveness. An energy analysis is carried through to conceive the activation of the Targeted Energy Transfer suppression mechanism and an energy-based parametric analysis of RNES performance. The results indicate that NES efficiency for flutter postponement is related mainly to low-radius devices located near the leading edge. RNES mass and angular damping parameters also present an impact but are limited due to subcritical behavior.

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Flutter suppression of an airfoil using a nonlinear energy sink combined with a piezoelectric energy harvester

Cited by 14 publications

References 48 publications

Aeroelastic metastructure for simultaneously suppressing wind-induced vibration and energy harvesting under wind flows and base excitations

Aeroelastic metastructure for simultaneously suppressing wind-induced vibration and energy harvesting under wind flows and base excitations

A viscoelastic nonlinear energy sink with an electromagnetic energy harvester: Narrow-band random response

Passive flutter suppression with rotary nonlinear energy sink

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