埋地曲管平面外流固耦合振动分析的数学建模  

Math Modeling of Vertical Plane for FSI Analysis of Buried Fluid-conveying Pipes

作　　者：丁幼松[1] 陈贵清[2] 

机构地区：[1]河北联合大学,河北唐山063009 [2]唐山学院,河北唐山063000

出　　处：《河北理工大学学报（自然科学版）》2011年第3期107-110,共4页Journal of Hebei Polytechnic University:Social Science Edition

摘　　要：各种输液管道(包括埋地管道)的振动问题是当前学术界研究的一个热点,而数学建模又是解决问题的关键。将土约束简化为均布非线性弹簧、线性弹簧,推导出了埋地管道的平面外振动微分方程及扭曲运动的微分方程。The study of vibration problems of different fluid-conveying （included pipes buried fluid-conve- ying pipes） are a hotspot of present academia, and math modeling is the key to solve the problem. The soil was separately hold to look upon nonlinear spring, linear spring and uniform load in the text, derived the oscillatory differential equation of vertical plane and torsional vibration of buried fluid-conveying pipes.

关 键 词：管道 振动 流固耦合 数学建模 

分 类 号：O327[理学—一般力学与力学基础]