Fatigue life prediction of umbilicals considering non-linear stress

• Autorzy: Lu Q. , Yin Y. , Yang Z. , Chen J. , Yan J. , Yue Q.

Identyfikatory

DOI

10.1515/pomr-2017-0078

• Języki publikacji: EN

Abstrakty

EN

The fatigue problem induced by wave loads and floater movements of dynamic umbilicals in deepwater is studied. The prediction method of the fatigue life is investigated by considering no-linear local stress due to contact and friction between components of the umbilical. A case study of a dynamic umbilical for 1500 meters depth in South China Sea was presented. The results showed that the more accurate result of the fatigue life was calculated by considering non-linear local stress. The fatigue life by considering local stress with the no-slip assumption was conservative. An obviously longer fatigue life was obtained by considering local stress with the full-slip assumption.

Słowa kluczowe

EN

steel tube umbilical; fatigue life; contact and friction; non-linear local stress

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2017
• Tom: S 2
• Strony: 154--163
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Lu Q.

• School of Ocean Science and Technology Dalian University of Tech Dalian, Liaoning 124221 CHINA

autor

Yin Y.

• Department of Engineering Mechanics, Dalian University of Tech Dalian, Liaoning, China

autor

Yang Z.

• Department of Engineering Mechanics, Dalian University of Tech Dalian, Liaoning, China

autor

Chen J.

• Department of Engineering Mechanics, Dalian University of Tech Dalian, Liaoning, China

autor

Yan J.

• Department of Engineering Mechanics, Dalian University of Tech Dalian, Liaoning, China

autor

Yue Q.

• School of Ocean Science and Technology Dalian University of Tech Dalian, Liaoning 124221 CHINA
• Department of Engineering Mechanics, Dalian University of Tech Dalian, Liaoning, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).