上海交通大学学报(英文版) ›› 2015, Vol. 20 ›› Issue (2): 234-242.doi: 10.1007/s12204-015-1613-z
YANG He-zhen*(杨和振), JIANG Hao (姜豪), YANG Qi (杨启), DING Jin-hong (丁金鸿)
出版日期:
2015-04-30
发布日期:
2015-04-02
通讯作者:
YANG He-zhen(杨和振)
E-mail: yanghezhen@hotmail.com
YANG He-zhen*(杨和振), JIANG Hao (姜豪), YANG Qi (杨启), DING Jin-hong (丁金鸿)
Online:
2015-04-30
Published:
2015-04-02
Contact:
YANG He-zhen(杨和振)
E-mail: yanghezhen@hotmail.com
摘要: A coupled element modeling method is proposed for global dynamic analyses of unbonded flexible risers. Owing to the multi-layer structure of unbonded flexible risers, the global-dynamic-analysis method applied to the steel rigid risers is insufficient for flexible risers. The main challenges lie in the enormous difference between the anti-tension and anti-binding capacity of unbonded flexible risers which results in serious ill-conditional calculation in global dynamic analysis. In order to solve this problem, the coupled element modeling approach was proposed in this study. A time domain fatigue analysis was applied to illustrate the necessity of the proposed approach. A dynamic benchmark case is used to demonstrate the accuracy of the coupled element method respectively. Subsequently the validated coupling element method is employed to conduct the global dynamic analyses for a free hanging flexible riser. The results demonstrate that the proposed approach can give the accurate global dynamic response under the guidance of the fatigue failure mode for unbonded flexible riser. The parametric influence analyses also provide a practical and effective way for predicting the global dynamic response.
中图分类号:
YANG He-zhen*(杨和振), JIANG Hao (姜豪), YANG Qi (杨启), DING Jin-hong (丁金鸿). Coupled Element Modeling Scheme for the Global Dynamic Analysis of Unbonded Flexible Risers[J]. 上海交通大学学报(英文版), 2015, 20(2): 234-242.
YANG He-zhen*(杨和振), JIANG Hao (姜豪), YANG Qi (杨启), DING Jin-hong (丁金鸿). Coupled Element Modeling Scheme for the Global Dynamic Analysis of Unbonded Flexible Risers[J]. Journal of shanghai Jiaotong University (Science), 2015, 20(2): 234-242.
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