All Title Author
Keywords Abstract

Research on Ice Induced Fatigue of a Jacket Platform in Bohai Sea

DOI: 10.12677/AMS.2015.24010, PP. 73-83

Keywords: 冰边缘区,冰激疲劳,导管架平台,瞬态动力分析
Marginal Ice Zone
, Ice Induced Fatigue, Jacket Platform, Transient Dynamic Analysis

Full-Text   Cite this paper   Add to My Lib


The ratio of the marginal ice zone in Bohai Sea is increasing with global climate warming. The dy-namic condition in the marginal ice zone is complex, so the ice induced fatigue of a jacket platform in Bohai Sea attracts more attention. The ice induced fatigue of a jacket platform in Bohai Sea was analyzed by ANSYS software. According to the ice conditions in that sea area in winter, the rea-sonable ice induced fatigue working conditions were established first. The dynamic ice load time- history for each ice condition was determined by the dynamic ice load function. Then the transient dynamic analysis in time domain was advanced for the jacket platform. Based on the S-N curve, the fatigue lives of tubular joints in jacket platform legs were analyzed. The fatigue resistance re-quirement of the structure was satisfied. The analysis method of the ice induced fatigue was effec-tive to solve this kind of problem, and is significative for the design and evaluation for the offshore structure.


[1]  Huang, Y., Ma, J.J. and Tian, Y.F. (2013) Model Tests of Four-Legged Jacket Platforms in Ice: Part 1. Model Tests and Results. Cold Region Science and Technology, 95, 74-85.
[2]  Huang, Y., Yu, M. and Tian, Y.F. (2013) Model Tests of Four-Legged Jacket Platforms in Ice: Part 2. Analyses and Discussions. Cold Region Science and Technology, 95, 86-101.
[3]  Sodhi, D.S. (2001) Crushing Failure during Ice-Structure Interaction. Engineering Fracture Mechanics, 68, 1889-1921.
[4]  Yue, Q.J., Guo, F.W. and Karna, T. (2009) Dynamic Ice Forces of Slender Vertical Structures Due to Ice Crushing. Cold Regions Science and Technology, 56, 77-83.
[5]  Huang, Y., Shi, Q.Z. and Song, A. (2007) Model Test Study of Dynamic Ice Force on Compliant Conical Structures. China Ocean Engineering, 21, 11-22.
[6]  (1995) API RP 2N, Recommended Practice for Planning, Designing, and Constructing Structures and Pipelines for Arctic Condi-tions.
[7]  (2007) API RP 2A-WSD, Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms —Working Stress Design.


comments powered by Disqus