2018
DOI: 10.2514/1.j056217
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Transonic Panel Flutter in Accelerating or Decelerating Flow Conditions

Abstract: Nonlinear panel flutter oscillations at transonic and low supersonic flow speed demonstrate rich panel dynamics, which includes bifurcations of the limit cycle, coexisting of different limit cycles, and nonperiodic oscillations. Passing through the range of transonic Mach numbers to supersonic cruise speed should be sufficiently fast to avoid significant fatigue damage. In this study, the sequence of bifurcations of limit cycles when the flow speed is continuously increasing or decreasing is analyzed. The evol… Show more

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Cited by 24 publications
(3 citation statements)
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“…( 26) yields some limitation to the results for < 3. Detailed discussion on this issue is provided by Vedeneev and co-workers [24,25,29]. Here, the model simplification has been considered adequate as it provides good agreement with the results by Dowell [4], as follows.…”
Section: Model Verificationmentioning
confidence: 95%
“…( 26) yields some limitation to the results for < 3. Detailed discussion on this issue is provided by Vedeneev and co-workers [24,25,29]. Here, the model simplification has been considered adequate as it provides good agreement with the results by Dowell [4], as follows.…”
Section: Model Verificationmentioning
confidence: 95%
“…Based on the PEH, multiple mechanical oscillations have been used to harvest energy, such as base excitations [13,21,22], rotational vibrations [23], and flow-induced vibrations [24][25][26][27]. Flow-induced piezoelectric energy harvester is also divided into many types by the shape of bluff body, which includes vortex-induced vibration (VIV) [28][29][30], galloping [31][32][33][34], flutter [35,36] and wake-induced vibration (WIV) [37,38]. Vortex-induced vibration piezoelectric energy harvester (VIVPEH) can convert the low-velocity wind into electrical power.…”
Section: Introductionmentioning
confidence: 99%
“…The aeroelastic response of a nonlinear panel in transonic and low supersonic air flow was studied by Shishaeva et al. [7]; substantial various nonlinear phenomenon including bifurcation, coexistence of different limit cycles and non-periodic oscillations were observed in accelerating or decelerating air flow conditions. A three-DOF aeroelastic airfoil with a free-play in the control surface was investigated in transonic air flow by means of Euler-based CFD, and higher-order spectra techniques [8] and HilbertHuang Transform techniques [9] were applied to understand the features and physical reasons of observed transition between different type of nonlinear aeroelastic responses.…”
Section: Introductionmentioning
confidence: 99%