Abstract
The effects of tension on vortex-induced vibration (VIV) responses for a tension-dominated long cylinder with an aspect ratio of 550 in uniform flows are experimentally investigated in this paper. The results show that elevated tension suppresses fluctuations of maximum displacement with respect to flow velocity and makes chaotic VIV more likely to appear. With respect to periodic VIV, if elevated tension is applied, the dominant vibration frequency in the in-line (IL) direction will switch from a fundamental vibration frequency to twice the value of the fundamental vibration frequency, which results in a ratio of the dominant vibration frequency in the IL direction to that in the cross-flow direction of 2.0. The suppression of the elevated tension in the fluctuation of the maximum displacement causes the axial tension to become an active control parameter for the VIV maximum displacement of a tension-dominated long riser or tether of an engineering structure in deep oceans. However, the axial tension must be optimized before being used since the high dominant vibration frequency due to the elevated tension may unfavorably affect the fatigue life of the riser or tether.
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References
Bearman, P.W.: Circular cable wakes and vortex-induced vibrations. J. Fluid Struct. 27, 648–658 (2011)
Gabbai, R.D., Benaroya, H.: An overview of modeling and experiments of vortex induced vibration of circular cylinders. J. Sound Vib. 282, 575–616 (2005)
Sarpkaya, T.: A critical review of the intrinsic nature of vortex-induced vibrations. J. Fluid Struct. 19, 389–447 (2004)
Williamson, C.H.K., Govardhan, R.: Vortex-induced vibrations. Annu. Rev. Fluid Mech. 36, 413–455 (2004)
Ahrens, D.: Submerged floating tunnels—a concept whose time has arrived. Tunn. Undergr. Sp. Tech. 12, 317–336 (1997)
Wu, X.D., Ge, F., Hong, Y.S.: A review of recent studies on vortex-induced vibrations of long flexible cylinders. J. Fluid Struct. 28, 292–308 (2012)
Wu, X.D., Ge, F., Hong, Y.S.: An Experimental investigation of dual-resonant and non-resonant responses for vortex-induced vibration of a long slender cylinder. Sci. China Phys. Mech. 57, 321–329 (2014)
Trim, A.D., Braaten, H., Lie, H., et al.: Experimental investigation of vortex induced vibration of long marine risers. J. Fluid Struct. 21, 335–361 (2005)
Resvanis, T.L., Jhingran, V., Vandiver, J.K., et al.: Reynolds number effects on the vortex-induced vibration of flexible marine risers. In: Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, Brazil, OMAE2012-83565 (2012)
Huera-Huarte, F.J., Bangash, Z.A., Gonzalez, L.M.: Towing tank experiments on the vortex-induced vibrations of low mass ratio long flexible cylinder. J. Fluid Struct. 48, 81–92 (2014)
Wu, H., Sun, D.P., Lu, L., et al.: Experimental investigation on the suppression of vortex-induced vibration of long flexible riser by multiple control rods. J. Fluid Struct. 30, 115–132 (2012)
Huera-Huarte, F.J.: On splitter plate coverage for suppression of vortex-induced vibrations of flexible cylinders. Appl. Ocean Res. 48, 244–249 (2014)
Sanaati, B., Kato, N.: Vortex-induced vibration (VIV) dynamics of a tensioned flexible cylinder subjected to uniform cross-flow. J. Mar. Sci. Technol. 18, 247–261 (2013)
Lee, L., Allen, D.: Vibration frequency and lock-in bandwidth of tensioned flexible cylinders experiencing vortex shedding. J. Fluid Struct. 26, 602–610 (2010)
Gu, J.J., Vitola, M., Coelho, J., et al.: An experimental investigation by towing tank on VIV of a long flexible cylinder for deepwater riser application. J. Mar. Sci. Technol. 18, 358–369 (2013)
Huera-Huarte, F.J., Bearman, P.W.: Wake structures and vortex-induced vibrations of a long flexible cylinder—Part I: dynamic response. J. Fluid Struct. 25, 969–990 (2009)
Lie, H., Kaasen, K.E.: Modal analysis of measurements from a large-scale VIV model test of a riser in linearly sheared flow. J. Fluid Struct. 22, 557–575 (2006)
Eckmann, J.-P., Ruelle, D.: Ergodic theory of chaos and strange attractors. Rev. Mod. Phys. 57, 617–656 (1985)
Rosenstein, M.T., Collins, J.J., De Luca, C.J.: A practical method for calculating largest Lyapunov exponents from small data. Phys. D 65, 117–134 (1993)
Wu, Y., Su, J., Tang, H., et al.: Analysis of the emergence in swarm model based on largest Lyapunov exponent. Math. Probl. Eng. 2011, 745257 (2011)
Chaplin, J.R., Bearman, P.W., Huera-Huarte, F.J., et al.: Laboratory measurements of vortex-induced vibrations of a vertical tension riser in a stepped current. J. Fluid Struct. 21, 3–24 (2005)
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This project was supported by the Construction Technology Program of the Ministry of Transport (Grant 2013 318 740050).
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Kang, L., Ge, F., Wu, X. et al. Effects of tension on vortex-induced vibration (VIV) responses of a long tensioned cylinder in uniform flows. Acta Mech. Sin. 33, 1–9 (2017). https://doi.org/10.1007/s10409-016-0604-0
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DOI: https://doi.org/10.1007/s10409-016-0604-0