Experimental Investigation on Vortex-Induced Vibration of Steel Catenary Riser  

作　　者：范宇婷 毛海英 郭海燕 刘庆海 李效民 

机构地区：[1]Institute of Geology and Geophysics,Chinese Academy of Sciences [2]College of Engineering, Ocean University of China

出　　处：《China Ocean Engineering》2015年第5期691-704,共14页中国海洋工程（英文版）

基　　金：financially supported by the National High Technology Research and Development Program of China(863 Program,Grant No.2010AA09Z303);the National Natural Science Foundation of China(Grant No.41174157);Shandong Province Scientific Research Foundation for Outstanding Young Scientists Program(Grant No.BS2013HZ014)

摘　　要：Steel catenary riser（SCR） is the transmission device between the seabed and the floating production facilities. As developments move into deeper water, the fatigue life of the riser can become critical to the whole production system, especially due to the vortex-induced vibration（VIV）, which is the key factor to operational longevity. As a result, experimental investigation about VIV of the riser was performed in a large plane pool which is 60 m long, 36 m wide and 6.5 m deep. Experiments were developed to study the influence of current speed and seabed on VIV of SCR. The results show that amplitudes of strain and response frequencies increase with the current speed both in cross-flow（CF） and in-line（IL）. When the current speed is high, multi-mode response is observed in the VIV motion. The amplitudes of strain in IL direction are not much smaller than those in CF direction. The seabed has influence on the response frequencies of riser and the positions of damage for riser.Steel catenary riser（SCR） is the transmission device between the seabed and the floating production facilities. As developments move into deeper water, the fatigue life of the riser can become critical to the whole production system, especially due to the vortex-induced vibration（VIV）, which is the key factor to operational longevity. As a result, experimental investigation about VIV of the riser was performed in a large plane pool which is 60 m long, 36 m wide and 6.5 m deep. Experiments were developed to study the influence of current speed and seabed on VIV of SCR. The results show that amplitudes of strain and response frequencies increase with the current speed both in cross-flow（CF） and in-line（IL）. When the current speed is high, multi-mode response is observed in the VIV motion. The amplitudes of strain in IL direction are not much smaller than those in CF direction. The seabed has influence on the response frequencies of riser and the positions of damage for riser.

关 键 词：vortex-induced vibration（VIV） steel catenary riser（SCR） current speed seabed 

分 类 号：P75[天文地球—海洋科学] P742