输液管道动力分析  

Dynamic analysis of fluid-conveying pipelines

作　　者：薛景宏[1] 欧进萍[2] 孙建刚[1] 

机构地区：[1]大庆石油学院,黑龙江安达151400 [2]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《世界地震工程》2001年第2期29-32,共4页World Earthquake Engineering

基　　金：黑龙江省自然科学基金资助项目(A9623)

摘　　要：考虑地下管道管土及管液之间的相互作用，研究了管道在沿轴线方向传递的剪切波和压缩波波动作用下的动力响应，得出了有关土壤剪切模量、管径及流速对其动力响应影响的初步结论；对于地上输液管道，考虑管液之间的相互作用，研究了其动特性和在端点输入的地震动作用下的动力响应，得出了管内液体流动对系统固有频率及动力响应影响的初步结论；指出地下与地上管道震害原因的区别；采用有限元方法求解了运动方程．The dynamic response of buried pipelines due to the axial propagating p-wave is studied considering the pipe-soil interaction and the pipe-fluid interaction. Some preliminary conclusions are obtained about the effect of soil shear modulus, pipe diameter and fluid velocity on the dynamic response of buried pipelines. The dynamic characteristic and the response of aboveground pipelines under support seismic input are also studied considering the interaction between the fluid and the pipe. Some preliminary conclusions are also obtained about the effect of fluid flowing on the dynamic response of aboveground pipelines. The difference between reasons causing underground and aboveground pipelines earthquake damage is pointed out. The motion equation is resolved in finite element method.

关 键 词：埋地输液管道 地上输液管道 地震激励 动力响应 剪切波 压缩波 地震动作用 

分 类 号：U177.8[交通运输工程] P315.9[天文地球—地震学]