摘要
研究了基于响应模态分析的深水钻井隔水管涡激监测传感器位置(即监测位置)优化方法。首先筛选出造成隔水管涡激疲劳的主要激励模态;对每阶主要激励模态,考虑隔水管倾斜的影响,根据响应加速度幅值最大原则找出可能的监测位置;在此基础上确定最佳监测位置,该位置处的其他主要模态响应加速度幅值最小。通过计算实例讨论了顶张力对传感器位置的影响,顶张力变化时,每阶模态的监测位置将相应变动。
The method for optimizing VIV monitoring sensor locations on deepwater drilling riser has been investigated based on modal analysis of riser response. First, the main modes which have significant contribution to VIV fatigue are identified. For each one of the modes, search for possible monitoring locations according to maximization principle of response acceleration amplitude and considering the riser tilt effects. Then the optimum monitoring location is that would give the minimum response acceleration amplitude for the other main modes. The effect of top tension on sensor locations has been discussed through a case calculation, which shows the fluctuation of the sensor location vary with top tension for each mode.
出处
《中国海上油气》
CAS
北大核心
2009年第3期204-206,214,共4页
China Offshore Oil and Gas
基金
国家高技术研究发展计划(863计划)研究课题"深水钻完井关键技术"子课题"深水隔水管及井口技术"(2006AA09A106-4)部分研究成果
