许伟伟,武博,吴大转,王乐勤

• 1:浙江大学化学工程与生物工程学系化工机械研究所

摘要(Abstract)：

针对采油用管道内流体引发管道振动问题,研究了U形管路在内流作用下的振动特性,利用非线性耦合方法分析非稳定流体与管道相互耦合规律。流固耦合模态结果与前人计算结果相近,验证了数据的可靠性。模拟结果发现,在周期性脉动流体的作用下,管道最大应力及位移振动呈周期性变化;流体频率与管道基频相近时,管道位移振动频谱既有流体诱发的高频又有较低的管路基频。流体速度增加,管道位移增加,管道最大应力增加,管道基频减小。另外,发现脉动流体频率增加,管路基频增加。

关键词(KeyWords)： 输油管路;流固耦合;非稳定流体;高频振动

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费专项资金资助

作者(Author): 许伟伟,武博,吴大转,王乐勤

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