An Assessment of Carrying Capacity for Substructure of Offshore Modular Drilling Rig

Abstract:

Substructure of offshore modular drilling rig has complex loading. It is necessary that a 3D finite element analysis has been conducted by using finite element software for substructure. The distributions of integrated displacement and stress have been obtained. The results show that the axial strength and stiffness of the substructure are sufficient. The relevant evaluation methods were summarized and integrated into the finite element software, and the command flow program of post-processing is written. Through post-processing graphical display, the carrying capacity of substructure is presented. The results show that the carrying capacity of substructure can meet the requirements in the combination condition which contains the maximum rotary load and the maximum setback load. This research method can provide pertinent reference for carrying capacity assessment of steel structure, and have some practical significance for field operation.

• Periodical: Applied Mechanics and Materials (Volume 575)
• Pages: 521-525
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.575.521
• Online since: June 2014
• Authors: Feng Guan*, Chuan Xi Zhou, Jian Xu, Bo Zhou, Xian Zhong Yi
• Keywords: Assessment, CAD, Carrying Capacity, Finite Element Analysis (FEA), Offshore Drilling Rig, Substructure

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DOI: 10.3403/03175340

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