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What is period doubling bifurcation? in vortex induced vibration? 


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Period doubling bifurcation in vortex-induced vibration refers to a phenomenon where the response of the system transitions from a period-1 motion to a period-n motion, where n is greater than 1. This bifurcation occurs in the post-synchronous regime of the system, where the response of the cylinder is no longer synchronized with its natural frequency . The variation of the onset of synchronization and its spectrum over the range of Reynolds number can be depicted using bifurcation diagrams . In the case of a top tension riser (TTR) subject to shear flow VIV, the VIV response of the TTR exhibits Hopf bifurcation phenomena with bistable characteristics . The understanding of these bifurcation phenomena can provide insights for the design and optimization of riser structural parameters .

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The provided paper does not specifically mention period doubling bifurcation in vortex-induced vibration.
The paper does not specifically mention period doubling bifurcation in vortex-induced vibration.

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