管道系统流固耦合振动分析  

Analysis of Fluid-Solid Coupling Vibration in Pipelines

作　　者：赵国桥[1] 

机构地区：[1]中国石化北京设计院,北京市100011

出　　处：《炼油设计》1995年第3期49-53,共5页Petroleum Refinery Engineering

基　　金：国家教委博士点基金及国家核安全局资助项目.

摘　　要：流固耦合引起的管道振动在炼油化工装置中是比较常见的,其振动频率虽然不高,但振幅很大,严重威胁装置的正常运行.基于流固耦合振动理论,建立了液流管道系统的弹性.一维声波耦合分析模型;提出了实模态减缩.复模态综合的求解方法.算例表明建立的流固耦合模型是正确的,求解是有效和可靠的.Pipe vibrations caused by fluid-solid coupling occured rather often in petroleum refining and petrochemical units. Al-though their vibration frequencies are not high, the amplitudes are large. This seriously threatens the normal operations of units. Based on the theory of fluid-solid coupling vibration, the analysis model of elasticity-mono-dimensional acoustic wave coupling for liquid flow piping systems was established. A resolving method using real mode contraction-composite mode integration was proposed.

关 键 词：流体流动 管道系统 耦合振动 振动 油管 

分 类 号：TE973.1[石油与天然气工程—石油机械设备]