Analysis on Elastic Stability of the Erosion Section of the Sea-bottomImbedded Oil and Gas Pipeline

doi:10.3863/j.issn.1000-2634.1997.01.015

西南石油大学学报(自然科学版) ›› 1997, Vol. 19 ›› Issue (1): 73-78.DOI: 10.3863/j.issn.1000-2634.1997.01.015

• 石油与天然气储运工程 • Previous Articles Next Articles

Analysis on Elastic Stability of the Erosion Section of the Sea-bottomImbedded Oil and Gas Pipeline

Wang Wei

Dept. of Mechanical Engineering, SWPI, Sichuan, 637001

Received:1995-10-22 Revised:1900-01-01 Online:1997-02-20 Published:1997-02-20

Abstract

Abstract: The elastic stability of the erosion section of the sea-bottom imbedded oil and gas pipeline is discussed in this paper. A so-called beam-shell erosion model is proposed. The ovalization mode of the cross section of the pipe is analyzed and the governing equations of elastic stability of the erosion section are obtained on the basis of elastic stability theory. At last, an example of
numerical analysis on the equilibrium path is given. This effort is helpful to further analysis of the elastoplastic stability of the erosion section of the pipeline.

Key words: Submarine pipeline, Elasticity, Stability

CLC Number:

TE873.202

Wang Wei. Analysis on Elastic Stability of the Erosion Section of the Sea-bottomImbedded Oil and Gas Pipeline[J]. 西南石油大学学报(自然科学版), 1997, 19(1): 73-78.

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Analysis on Elastic Stability of the Erosion Section of the Sea-bottomImbedded Oil and Gas Pipeline

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