节点文献
基于低声能辐射的隔水管VIV监测关键参数研究
Research on key parameters of riser VIV monitoring under low sound energy condition
【Author】 LI Bao-jun,WANG Hai-yan,ZHANG Xue,SHEN Xiao-hong,CHENG Gang (College of Marine Engineering,Nor thwestern Polytechnical University,Xi ’an 710072,China)
【机构】 西北工业大学航海学院；
【摘要】 涡激振动(VIV)是导致隔水管疲劳,缩小隔水管寿命的主要诱因。服役期间隔水管的完整性决与否决定了深海石油作业的成败。在隔水管服役期间对涡激振动进行监测是十分必要的。本文研究了隔水管涡激振动的特征频率,得出深水隔水管涡激振动是低频多模态振动;提出了基于低声能辐射的隔水管涡激振动遥测方案:对监测系统的最佳采样频率、遥测系统的最佳载波频率和声能辐射功率等关键参数进行了最优化估计,为深水隔水管疲劳监测和深海石油钻探和开采作业提供技术支持。
【Abstract】 Vortex induced vibration is(VIV) is the major issue that gives rise to high rates of riser fatigue damage accumulation and diminishes the riser fatigue life.Whether or not the deepwater petrolem will operate successfully depends on the integrity of the riser.It is essential to monitor VIV of risers during operating time.Study on characteristic frequency of VIV on riser show which is low-frequency and multi-mode vibration.A telemetry strategy for monitoring VIV response based on low sound energy condition,as a kind of innovation in VIV monitoring system,is outlined.The sampling frequency,the low sound energy technology and the optimum carrier frequency are researched.it provides technical support for deepwater riser fatigue monitoring and oil drilling mining operations.
- 【会议录名称】 2009’中国西部地区声学学术交流会论文集
- 【会议名称】2009’中国西部地区声学学术交流会
- 【会议时间】2009-07
- 【会议地点】中国云南景洪
- 【分类号】TE95
- 【主办单位】中国声学会超声电子学专委会、四川省声学学会、陕西省声学学会