Abstract
Tensile stiffness of ocean dynamic power umbilical is an important design parameter for functional implementation and structural safety. A column with radial stiffness which is wound by helical steel wires is constructed to predict the tensile stiffness value of umbilicals in the paper. The relationship between the tension and axial deformation is expressed analytically so the radial contraction of the column is achieved in the relationship by use of a simple finite element method. With an agreement between the theoretical prediction and the tension test results, the method is proved to be simple and efficient for the estimation of tensile stiffness of the ocean dynamic power umbilical.
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References
Dong, J. H., Wang, Y. J., Zhao, S. X. and Wang, X. D., 2004. Calculation of tensile-strength of submarine fiber optic cable with double layer armour, Optical Fiber & Electric Cable and Their Applications, 28(1): 28–31. (in Chinese)
Féret, J. J. and Bournazel, C. L., 1987. Calculation of stresses and slip in structural layers of unbonded flexible pipes, J. Offshore Mech. Arct. Eng., 109(3): 263–269.
Hu, B., Zhou, X. J. and Wang, Y. J., 2008. Calculation of the shallow double-armoured SOFC breaking force, Ship Electronic Engineering, 28(09): 98–99, 199. (in Chinese)
International Organization for Standardization (ISO), 2009. Petroleum and natural gas industries-design and operation of subsea production systems, ISO-13628-5.
Ramos Jr, R. and Pesce, C. P., 2004. A consistent analytical model to predict the structural behavior of flexible risers subjected to combined loads, J. Offshore Mech. Arct. Eng., 126(2): 141–146.
Knapp, R. H., 1979. Derivation of a new stiffness matrix for helically armoured cables considering tension and torsion, Int. J. Numer. Methods Eng., 14(4): 515–529.
Knapp, R. H., 1989. Structural modeling of undersea cables, J. Offshore Mech. Arct. Eng., 111(4): 323–330.
Knapp, R. H. and Cruickehank, M. J., 1991. Design methodology for undersea umbilical cables, Proceedings of OCEANS’ 91,’ Ocean Technologies and Opportunities in the Pacific for the 90’s’, 1319–1327.
Li, H. X., Tang, Y. G., Liu, L. Q. and Zhang, R. Y., 2009. Analysis on motion and cable dynamic tension for an ALT-tanker system, China Ocean Eng., 23(2): 355–366.
Li, Y., Liu, S. J. and Li, L., 2007. Dynamic analysis of deep-ocean mining pipe system by discrete element method, China Ocean Eng., 21(1): 175–185.
Lu, M. W. and Luo, X. F., 2001. Foundation of Elasticity, 2nd ed., Tsinghua University and Springer. (in Chinese)
Lu, Q. Z., Yue, Q. J., Tang, M. G. and Zheng, J. X., 2011. Strengthened design of economical flexible pipeline in shallow water, The Ocean Eng., 29(2): 105–110. (in Chinese)
Lu, Q. Z., Yue, Q. J., Tang, M. G., Zheng, J. X. and Yan, J., 2010. Reinforced design of an unbonded flexible flowline for shallow water, Proceedings of 29th International Conference on Ocean, Offshore and Arctic Engineering, ASME, 249–255.
Wang, S. X., Wang, Y. H. and Li, X. P., 2007. Dynamic analysis of towed and variable length cable systems, China Ocean Eng., 21(2): 331–341.
Wang, W. and Chen, G., 2011. Analytical and numerical modeling for flexible pipes, China Ocean Eng., 25(4): 737–746.
Witz, J. A. and Tan, Z., 1992. On the axial-torsional structural behaviour of flexible pipes, umbilicals and marine cables, Mar. Struct., 5(2–3): 205–227.
Zhang, X. L. and Xu, J. S., 2003. A survey of the factors affecting submarine cable safety, Coastal Engineering, 22(02): 1–7. (in Chinese)
Zhou, H. J., Yan, S. W. and Cui, W., 2005. Nonlinear static finite element stress analysis of pipe-in-pipe risers, China Ocean Eng., 19(1): 155–166.
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This research was financially supported by the National High Technology Research and Development Program of China (863 Program, Grant No. 2012AA09A212), the National Natural Science Foundation of China (Grant No. 11372060), and the China Postdoctoral Science Foundation (Grant No. 20110491521).
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Tang, Mg., Yan, J., Wang, Y. et al. Tensile stiffness analysis on ocean dynamic power umbilical. China Ocean Eng 28, 259–270 (2014). https://doi.org/10.1007/s13344-014-0021-8
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DOI: https://doi.org/10.1007/s13344-014-0021-8