GMA在脉冲喷射开关阀中的应用  

Application of GMA in pulsed jet on-off valve

作　　者：孟爱华[1] 周建军[1] 潘玉良[1] 项占琴[2] 

机构地区：[1]杭州电子科技大学机械工程学院,浙江杭州310018 [2]浙江大学现代制造工程研究所,浙江杭州310027

出　　处：《工程设计学报》2008年第2期109-113,共5页Chinese Journal of Engineering Design

摘　　要：通过分析脉冲喷射开关阀的工作性能,提出致动器是决定脉冲喷射开关阀特性的关键因素.对比3种致动器的性能参数,指出GMA更适合脉冲喷射开关阀的工作要求.GMA的性能分析和仿真结果给出了在脉冲喷射开关阀中工作的GMA的静、动态特性.脉冲喷射开关阀单脉冲流量实验曲线表明:脉冲喷射开关阀的单脉冲流量随励磁电流的变化规律与GMA的磁致伸缩曲线特性相似,在GMA的磁致伸缩曲线的线性区即可满足单脉冲喷射流量要求.动态实验中,脉冲喷射开关阀的阀芯位移阶跃响应上升时间只有0.81 ms,远远满足脉冲喷射开关阀应用的工作频率要求.Through analysis on working performance on pulsed jet on-off valve （PJOV）, the conclusion that actuator is the key factor to determine the performance of such valve is drawn. By comparing the performance parameters of three actuators, it was concluded that GMA was the most suitable one for PJOV. Performance analysis and simulation result provided the static and dynamic properties of GMA in PJOV. Pulse flux experimental curve of PJOV indicates that chan- ging rules of single-pulse flux with exciting currency is similar to curve property of magnetostriction of GMA, and the linear area of magnetostriction of GMA can fulfill the requirements of single-pulse jet flux. In dynamic experiments, the rising time of step response of valve stem was only 0.81 ms, which well fulfilled the requirements of PJOV.

关 键 词：GMA 脉冲喷射开关阀 超磁致伸缩 致动器 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置] TH703[自动化与计算机技术—控制科学与工程]