Effectiveness of a nonlinear energy sink in the control of an aeroelastic system

Bichiou, Youssef; Hajj, Muhammad R.; Nayfeh, Ali H.

doi:10.1007/s11071-016-2922-y

Cited by 72 publications

(24 citation statements)

References 7 publications

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“…One particular application of NES attachments is in structural dynamic models, where the primary structure is based on continuous elements such as strings [19], beams [20], pipes [21], plates [22] or wings [23]. Recently, the interest in such models has increased, especially in mechanical, civil engineering and aerospace applications for vibration suppression and control.…”

Section: Introductionmentioning

confidence: 99%

Periodic response of a nonlinear axially moving beam with a nonlinear energy sink and piezoelectric attachment

Karličić

Cajić

Paunović

et al. 2021

International Journal of Mechanical Sciences

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Section: Introductionmentioning

confidence: 99%

Periodic response of a nonlinear axially moving beam with a nonlinear energy sink and piezoelectric attachment

Karličić

Cajić

Paunović

et al. 2021

International Journal of Mechanical Sciences

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“…In [29], a passive control tool to increase the supersonic flutter boundary of composite panels, using a multimodal shunted piezoceramic in parallel topology, was identified. A wide use of the nonlinear energy sinks (NES), applied to aeroelastic problems, was also made in the literature (see, e.g., [30][31][32][33][34][35]). Here, the passive devices, consisting of essentially nonlinear oscillators, were designed to absorb energy from the main structure.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamics of an Internally Resonant Base-Isolated Beam under Turbulent Wind Flow

2021

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A base isolation system, aimed to passively control the nonlinear dynamics of an internally resonant tower, exposed to turbulent wind flow, is studied. A continuous visco-elastic beam, constrained at the bottom end by a nonlinear visco-elastic device and free at the top end, is considered. All the nonlinearities, structural, inertial and aeroelastic, these latter computed via the quasi-static theory, are accounted in the model. The interaction between self- and parametric excitations, triggered by the mean wind velocity and the turbulent component, respectively, are analyzed. The Multiple Scale Method is applied to the partial differential equations of motion, to investigate critical and post-critical behaviors, when two modes in internal 1:3 resonance are involved in the response. The first mode is found to lead the phenomenon, while the second mode is marginally involved. The effectiveness of the visco-elastic nonlinear isolation system is assessed, both in increasing the mean wind bifurcation value and in reducing the limit-cycle amplitude. The contribution of structural nonlinearities is found to weakly affect the response.

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“…Recently, Lee et al [24] demonstrated that the NES can improve the stability of the aeroelastic system of a two-dimensional (2D) wing by experiments and theoretical analysis. Bichiou et al [25] demonstrated the effectiveness of the NES in controlling the flutter of a 2D wing and realized the beneficial effect of the NES in reducing the pitch and plunge amplitude; however, this reduction is limited to a small region of free-stream velocities above the flutter speed. Ebrahimzade et al [26] investigated the performance of linear passive vibration absorbers and the NES on the stability properties and nonlinear behaviors of an aeroelastic system.…”

Section: Introductionmentioning

confidence: 99%

Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink

Jian

Xia

2020

International Journal of Aerospace Engineering

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A nonlinear energy sink (NES) is used to suppress panel flutter. A nonlinear aeroelastic model for a two-dimensional flat panel with an NES in supersonic flow is established using the Galerkin method. First-order piston aerodynamic theory is adopted to build the aerodynamic load. The effects of NES parameters on flutter boundaries of the panel are investigated using Lyapunov’s indirect method. The mechanism of the NES suppression of panel flutter is studied through energy analysis. Effects of NES parameters on aeroelastic responses of the panel are obtained, and a design technique is adopted to find a suitable combination of parameter values of the NES that suppresses the panel flutter effectively. Results show that the NES can increase or reduce the onset dynamic pressure of the panel flutter and it can reduce the aeroelastic response amplitude effectively within a certain range of dynamic pressure behind the onset dynamic pressure. The installation position of the NES depends on the direction of the airflow. The robust characteristics should be considered to find the suitable combination of parameter values of the NES.

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Effectiveness of a nonlinear energy sink in the control of an aeroelastic system

Cited by 72 publications

References 7 publications

Periodic response of a nonlinear axially moving beam with a nonlinear energy sink and piezoelectric attachment

Periodic response of a nonlinear axially moving beam with a nonlinear energy sink and piezoelectric attachment

Nonlinear Dynamics of an Internally Resonant Base-Isolated Beam under Turbulent Wind Flow

Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink

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