Dynamic tests in a steel catenary riser reduced scale model. (17th November 2017)

• Record Type: Journal Article
• Authors: Bai, Xinglan; Vaz, Murilo A.; Morooka, Celso K.; Xie, Yonghe
• Is Part Of: Ships and offshore structures. Volume 12:Number 8(2017)
• Page Start: 1064
• Page End: 1076
• Publication Date: 2017-11-17
• Subjects: Steel catenary riser -- riser model test -- pipe–soil interaction -- dynamic behaviour -- touchdown point; Ships -- Periodicals; Offshore structures -- Periodicals; Marine engineering -- Periodicals; Marine engineering -- Technological innovations -- Periodicals; Ocean engineering -- Periodicals; Ocean engineering -- Technological innovations -- Periodicals; 623.8
• DOI: 10.1080/17445302.2017.1308788
• Languages: English
• ISSNs: 1744-5302

Abstract

ABSTRACT: Experimental investigations were conducted on a steel catenary riser (SCR) with different stiffness seafloor models both in dry and wet conditions. The motion oscillator and cell load connect the riser model in a tank, and forced motions with different amplitudes and frequencies were studied. Model tests are conducted in air and a small scale factor (1/435) is used. This model has been built having as reference a riser prototype in 900 m water depth and the numerical analysis is carried out in time domain using the developed CABLE3D. Results demonstrate the influence of the platform in-plane motion on the dynamic response of the riser model, and both of them are consistently good. This study provides a novel and simple experimental tool developed for testing of the SCR global dynamic analysis, and discusses the results including motion response, top tension and dynamic curvature near touchdown zone.