Ocean Engineering Equipment and Technology ›› 2015, Vol. 2 ›› Issue (2): 93-98.
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Jie ZHANG, Guo-min SUW, Hong-qi MA, Guo-yang LAN
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Abstract:
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
CLC Number:
TE973
Jie ZHANG, Guo-min SUW, Hong-qi MA, Guo-yang LAN. Subsea Pipeline Appendage Finite Element Analysis and Comparison of Different Checking Criteria[J]. Ocean Engineering Equipment and Technology, 2015, 2(2): 93-98.
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URL: https://www.qk.sjtu.edu.cn/oeet/EN/
https://www.qk.sjtu.edu.cn/oeet/EN/Y2015/V2/I2/93
Fig.1
Type Ⅰ bulkhead configuration
Fig.2
Type Ⅱ bulkhead configuration
Table 1
Bulkhead configuration parametersmm
Table 2
Bulkhead design parameters of a certain project
Table 3
Pipeline design parameters of the bulkhead
Fig.3
Boundary conditions of type Ⅰ bulkhead
Fig.4
Boundary conditions of type Ⅱ bulkhead
Table 4
External loads for bulkhead
Fig.5
Finite element model of type Ⅰ bulkhead
Fig.6
Finite element model of type Ⅱ bulkhead
Fig.7
Von Mises stress of type Ⅰ bulkhead
Fig.8
Von Mises stress of type Ⅱ bulkhead
Table 5
Bulkhead checking result using DNV-OS-F101 standard
Table 6
Bulkhead checking criteria of ASME Ⅷ Div2 standard
Fig.9
Linearization stress of type Ⅰ bulkhead
Fig.10
Linearization stress of type Ⅱ bulkhead
Table 7
Type Ⅰ bulkhead checking result using ASME Ⅷ Div2 standard
Table 8
Type Ⅱ bulkhead checking result using ASME Ⅷ Div2 standard
