现代制造工程
現代製造工程
현대제조공정
MODERN MANUFACTURING ENGINEERING
2009年
12期
12-15
,共4页
蔡霖%黄其涛%刘小初%叶正茂%韩俊伟%孙艳玲
蔡霖%黃其濤%劉小初%葉正茂%韓俊偉%孫豔玲
채림%황기도%류소초%협정무%한준위%손염령
滑阀%流量特性%流态切换%Fluent软件
滑閥%流量特性%流態切換%Fluent軟件
활벌%류량특성%류태절환%Fluent연건
slide valve%discharge characteristic%flow switching phenomenon%Fluent
针对某三级电液伺服阀功率级滑阀,在0～3mm的阀开口量范围内,建立不同阀开口量对应的二维几何模型并进行网格划分,通过Fluent软件仿真得到理想滑阀流量特性曲线,发现该滑阀阀口存在流态切换现象.仿真分析了改变阀杆直径、在阀芯壁面挖槽和阀芯根部倒圆角对流态切换现象的影响,为功率级滑阀的设计提供参考.
針對某三級電液伺服閥功率級滑閥,在0～3mm的閥開口量範圍內,建立不同閥開口量對應的二維幾何模型併進行網格劃分,通過Fluent軟件倣真得到理想滑閥流量特性麯線,髮現該滑閥閥口存在流態切換現象.倣真分析瞭改變閥桿直徑、在閥芯壁麵挖槽和閥芯根部倒圓角對流態切換現象的影響,為功率級滑閥的設計提供參攷.
침대모삼급전액사복벌공솔급활벌,재0～3mm적벌개구량범위내,건립불동벌개구량대응적이유궤하모형병진행망격화분,통과Fluent연건방진득도이상활벌류량특성곡선,발현해활벌벌구존재류태절환현상.방진분석료개변벌간직경、재벌심벽면알조화벌심근부도원각대류태절환현상적영향,위공솔급활벌적설계제공삼고.
The two dimensional geometry models and grids of slide valve of three-stage electro-hydraulic servo valve were built separately when its valve port size was 0～3mm.Through the numerical simulation,the discharge characteristic of ideal slide valve was got and flow states switching phenomenon was found to be existed.The effects of changing valve stem diameter,slotting at spool wall and rounding at spool root to flow states switching phenomenon were obtained.The results of analysis could offer a gist for the designing spool valves of power stage.
