放气活门透气孔对动静态性能影响研究  

Study on the Influence of the Vent Hole Size on the Dynamic and Static Characteristics of the Air Bleed Valve

作　　者：史彦东 侯占峰 涂益韵 訾惠宇 田纬 翟富刚[2,3] SHI Yan-dong;HOU Zhan-feng;TU Yi-yun;ZI Hui-yu;TIAN Wei;ZHAI Fu-gang(AVIC Changchun Control Technology,Changchun 130102,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China;Hebei Innovation Center for Equipment Lightweight Design and Manufacturing,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]中国航发长春控制科技有限公司,吉林长春130102 [2]燕山大学机械工程学院,河北秦皇岛066004 [3]燕山大学河北省轻质结构装备设计与制备工艺创新中心,河北秦皇岛066004

出　　处：《液压气动与密封》2021年第10期20-25,共6页Hydraulics Pneumatics & Seals

摘　　要：针对放气活门透气孔对其动静态性能影响不明晰的问题。首先,对放气活门阀芯进行动力学分析,然后基于CFD流场仿真技术得到阀芯所受流场作用力,最后建立放气活门AMESim仿真模型,分析透气孔面积对放气活门动静态性能的影响规律。结果表明,透气孔大小对于放气活门的动静态性能具有重要影响,随透气孔面积增大,放气活门的最大超调量和调整时间减小,有利于提高其动态性能;同时,在相同活门开度,气压伺服马达控制电流随透气孔面积增大而减小。Aiming at the problem that the vent hole has an unclear effect on the dynamic and static characteristics of the air bleed valve.First,dynamic analysis of the valve core of the air bleed valve,and then obtain the flow field force of the valve core based on the CFD flow field simulation technology,and finally establish the air bleed valve AMESim simulation model to analyze the influence of the area of the vent hole on the dynamic and static performance of the air bleed valve.The results show that the size of the vent hole has an important impact on the dynamic and static performance of the air bleed valve.As the area of the vent hole increases,the maximum peak overshoot and settling time of the air bleed valve decrease,which is beneficial to improve its dynamic characteristics;Moreover,at the same valve opening,the control current of the pneumatic servo motor decreases with the increase of the vent hole area.

关 键 词：放气活门 透气孔 AMESIM仿真 动静态性能 

分 类 号：TH138[机械工程—机械制造及自动化] V228.73[航空宇航科学与技术—飞行器设计]