摘要
在复杂的海洋环境条件下，管道的动力学特性受到内外部流体的作用而呈现出新的特点。本文通过对处在海底平稳流动作用下的悬跨管道的涡致振动进行分析，特别地考虑到管道内部流动的作用，给出了内流速度对管道响应幅度的影响，进而指出其对管道疲劳的意义。
With the rapid development of the Offshore Oil Industry, submarine oil/gas pipelines have been widely used. Under the complexsubmarine environmental conditions,the dynamic characteristics of pipeline show some new features due to the existence of internal and external fluids. The paper is intended to investigate the vortex-induced vibration of suspended pipeline in the submarine steady flow. Especially, the effects of the flow inside the pipeline are taken into account. Its influences on the amplitude of pipeline response,and then on the fatigue life, are given in terms of internal fluid velocity.
出处
《海洋工程》
CSCD
北大核心
1995年第3期1-8,共8页
The Ocean Engineering
基金
中国科学院"八五"重大基金
关键词
海底输油管道
管道流动
涡致振动
结构动力响应
疲劳寿命
submarine oil pipeline, flow in pipeline, vortexinduced vibration, structural dynamic response, fatigue life
