斜进口流道滑阀稳态液动力的仿真与分析  

Steady-state flow force simulation and analysis of oblique-inlet spool valves

作　　者：吴金波[1] 陈飞[1] 徐礼林 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074 [2]南京机电液压研究中心,江苏南京210000

出　　处：《华中科技大学学报（自然科学版）》2011年第11期109-111,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50909046);航空基础科学基金资助项目(2008ZC09001)

摘　　要：采用斜进口流道,即进口流道轴线与阀芯轴线不垂直,对进口处的液流进行导流以提高进口处液流沿阀芯轴向方向的动量,从而达到减小滑阀液动力的目的.同时采用Fluent对进口流道轴线与阀芯轴线夹角不同的滑阀内部流场进行三维仿真分析,得到夹角不同的滑阀液动力变化特征和流量系数变化特征.对仿真结果进行分析,确定最优夹角为60°.To increase the axial component of the flow′s momentum in the inlet,the oblique-inlet,whose axis is not perpendicular to the spool axis,was used to guide the flow in the inlet,so the flow force could be reduced.Then the Fluent was used to simulate the internal fluent field of spool vavles with different angles between the inlet channel axis and the spool axis.The flow force and the flow coefficient of spool vavles with different angles could be obtained.By analyzing the simulation results,the optimal angle between the inlet channel axis and the spool axis was set to be 60°.

关 键 词：滑阀 稳态液动力 斜进口流道 流量系数 仿真 

分 类 号：TH137.5[机械工程—机械制造及自动化]