| 基于CFD的液压锥阀动态和静态性能研究 |
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| 引用本文： | 李惟祥,刘晓红,邓斌. 基于CFD的液压锥阀动态和静态性能研究[J]. 液压气动与密封, 2011, 31(6) |
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| 作者姓名： | 李惟祥 刘晓红 邓斌 |
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| 作者单位： | 西南交通大学新型驱动技术中心,四川成都,610031 |
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| 摘 要： | 对液压锥阀的内部流场采用CFD(Computational Fluid Dynamics)方法进行数值模拟,通过移动网格技术,研究锥角大小和阀芯圆周直径以及同一调定压力下不同额定流量对锥阀芯静态和动态性能的影响,其次计算了阀口倒角对锥阀性能的影响.结果表明:阀芯圆周直径B值对锥阀动、静态特性有较大影响,当B=15mm时,锥阀的动、静态性能都较好,且对于同一种阀芯结构,随着额定流量的增加,锥阀的静态调压偏差增大,即开启比降低,而合适的阀口倒角长度可以有效提高锥阀的开启比5%左右.
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| 关 键 词： | 液压锥阀 静态性能 动态特性 移动网格 |
Research on Hydraulic Poppet Valve's Static and Transient Properties Based on CFD |
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| LI Wei-xiang,LIU Xiao-hong,DENG Bin. Research on Hydraulic Poppet Valve's Static and Transient Properties Based on CFD[J]. Hydraulics Pneumatics & Seals, 2011, 31(6) |
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| Authors: | LI Wei-xiang LIU Xiao-hong DENG Bin |
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| Affiliation: | LI Wei-xiang LIU Xiao-hong DENG Bin(New Drive Technology Center,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | This paper adopts the method of Computational Fluid Dynamics and moving grid to simulate the flow field in hydraulic poppet valve,First,we researched the effects of cone,circumference diameter and also the different rated flow on the poppet valve's Static and Transient properties,An then,we calculated the influence of chamfer length on poppet valve's properties.The result shows: The value of circumference diameter has great influence on poppet valve's Transient and Static properties,when circumference diame... |
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| Keywords: | CFD |
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