摘要
压力管道系统中存在流体和结构之间的耦合振动.对压力管道的流固耦合现象进行分析,建立了流固耦合的有限元数学模型,运用有限元软件ADINA模拟阀门开关引起的过渡过程,对直管压力管道在不同约束条件下的流固耦合现象进行了数值模拟计算,并进行了模态分析.计算结果表明流固耦合作用对压力管道系统的运行有重大影响,验证了压力管道考虑流固耦合的必要性.
There exist coupling vibrations between fluid and pressure pipes. The fluid structure interaction （FSI）in pressure pipes is analyzed. A finite element mathematical model of FSI is establised. The FSI dy- namics in straight pressure pipes in different constraints is numerically simulated and analyzed with the FEM software ADINA. At last, the modal analysis is carried out. The numerical simulation results show that the FSI has an important effect on piping system working so as to prove that it is necessary to consider FSI for pressure pipes.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2009年第2期264-267,共4页
Engineering Journal of Wuhan University
基金
国家自然科学基金资助项目(编号:50879062)
关键词
压力管道
流固耦合
有限元
ADINA
pressure pipe
fluid-structure coupling
finite＇elements
ADINA
