Ocean Engineering Equipment and Technology ›› 2015, Vol. 2 ›› Issue (2): 93-98.

• Orginal Article • Previous Articles     Next Articles

Subsea Pipeline Appendage Finite Element Analysis and Comparison of Different Checking Criteria

Jie ZHANG, Guo-min SUW, Hong-qi MA, Guo-yang LAN   

  1. Offshore Oil Engineering Co., Ltd., Tianjin 300451, China
  • Received:2015-02-03 Online:2015-04-10 Published:2016-03-30


Subsea pipeline system consists of pipelines, risers, spools and appendages. For pipelines and risers, special softwares is used for analysis and design; for the appendages, common finite element analysis (FEA) software is used. We use the ANSYS software to do the analysis for appendages. Considering the real load of the appendages, FEA model is built, and the stress distribution is obtained. According to DNV-OS-F101 code and ASME Ⅷ Div2 code, stress checking is carried out to estimate if the appendages can meet the requirements and ensure the safe operation. Besides, the comparison between the two checking criteria can provide a reference for future projects.

Key words: marine oil and gas pipeline, subsea pipeline appendage, finite element analysis, checking criterion

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