基于Ansys的输液管道系统的振动控制分析  

VIBRATION CONTROL ANALYSIS OF LIQUID-CONVEYING PIPE SYSTEM BASED ON ANSYS

作　　者：梁建术[1] 王涛[1] 李欣业[2] 

机构地区：[1]河北科技大学机械电子工程学院,石家庄050018 [2]河北工业大学机械工程学院,天津300130

出　　处：《机械强度》2012年第4期486-490,共5页Journal of Mechanical Strength

基　　金：国家自然科学基金资助项目(10872063)~~

摘　　要：以折弯式管道为例,研究输液管道系统的振动控制。首先,建立适用于数值分析的输液管道系统的运动方程,并给出流固边界条件。应用伽辽金法将运动方程转化成其在状态空间下的全耦合有限元方程。使用模态缩减法解决在求解全耦合方程时所产生的溢出错误;其次,在高频振荡流体载荷的作用下,数值分析系统的动力学特性;最后,研究节流孔板对系统振动的抑制作用。结果表明节流孔板对加快管内流场的稳定和抑制管道系统的振动是非常有效的。Taking bend pipe as an example, vibration control of liquid-conveying pipe system was investigated. Firstly, the kinetic equation of the system and the interface condition between liquid and pipe wall were established for numerical analysis. A finite element formulation for the fully coupled dynamic equations of the system in state space form was converted by Galerkin procedure. The modal reduction technique was used to overcome the overflow error, which occurred during the process of solving the fully coupled dynamic equation. Secondly, under the high-frequency excitation, dynamic characteristics of the system were calculated numerically. Finally, vibration control effect of the throttle orifice was discussed. It is shown that the throttle orifice can effectively stabilize tube flow field and suppress vibration of liquid-conveying pipe system.

关 键 词：输液管道系统 振动控制 数值分析 动力学特性 节流孔板 

分 类 号：TB123[理学—工程力学] TE832[理学—力学]