全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

变频液压可控周期性激振测试系统设计与仿真

Keywords: 液压激振,水击,特征线法,变频,激波器,测试系统

Full-Text   Cite this paper   Add to My Lib

Abstract:

为研究能够人为产生和主动控制的液压激振水击波,首先建立了系统数学模型,设计了变频液压激振测试系统。然后通过给定的偏微分运动方程,采用矩形网格特征差分法编程求解出激波器在变频条件下产生的激振压力和流速沿管道断面随时间的变化情况。数值模拟表明沿管道各断面输出的为简谐振动,且油缸处激振压力和流速随激波器频率的增大而增大。系统实测数据与仿真结果接近,说明通过对激波器进行调频可以实现对液压缸激振压力和运动频率的可控调节,为液压激振的振动特性及可控性研究提供了部分理论依据。

References

[1]  C. Schmitt ;G. Pluvinage ;E. Hadj-Taieb,Water pipeline failure due to water hammer effects,Fatigue & Fracture of Engineering Materials & Structures?,2006, 29(12).
[2]  寇子明;廉红珍.液压振动系统的建模及其运动参数的仿真[J].机床与液压,2009(11)doi:10.3969/j.issn.1001-3881.2009.11.057
[3]  Jayaraj Kochupillai ;N. Ganesan ;Chandramouli Padmanabhan,A new finite element formulation based on the velocity of flow for water hammer problems,International Journal of Pressure Vessels and Piping?,2005, 82(1).
[4]  Wenxi Tian ;G.H. Su ;Gaopeng Wang ;Suizheng Qiu ;Zejun Xiao,Numerical Simulation And Optimization On Valve-induced Water Hammer Characteristics For Parallel Pump Feedwater System,Annals of Nuclear Energy?,2008, 35(12).
[5]  Abbasi A;Sabbagh-Yazdi S R;Wegian F M,Accurate water hammer pressure modeling for automatic modification of stress distribution along multi-segment pipelines,Water Science and Technology:Water Supply-WSTWS,2009(3).
[6]  Ansari;Mohammad R;Davari,Numerical analysis of pipeline equipment effect on water hammer using characteristic method,ASME,2003.
[7]  孙玉东;刘忠族;刘建湖.水锤冲击时管路系统流固耦合响应的特征线分析方法研究[J].船舶力学,2005(4)
[8]  Wylie E B;Streeter V L,Fluid mechanics,New York:McGraw-Hill Book Company,Inc,1983.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133