摘要
论述了超磁致伸缩材料在电液控制元件中的应用研究现状,基于超磁致伸缩材料的特点和未来航空航天领域对高频大流量伺服阀的迫切需求,提出了一种由超磁致伸缩执行器驱动的新型射流伺服阀的结构,分析了其工作原理与特点,同时对该新结构伺服阀涉及的温度控制、热补偿、预压力施加与零位调节与驱动磁场均匀化等关键技术进行了详细分析并给出了具体实施方法。
This paper deals with the research on giant magnetostrive material in the application of electrohydraulic control element.Based on the characteristic of giant magnetostrictive material and the urgent need of high frequency and great flowing servo valve in aerospace industry,a novel structure jet pipe servo valve driven by giant magnetostrictive actuator is proposed and its working principle and characteristic are presented.Key technologies involved such as temperature control,thermal compensation,preliminary pressure loading,zero position regulating and constant magnetic fields are studied in detail.Finally,the concrete implementation is given.
出处
《压电与声光》
CSCD
北大核心
2010年第4期574-577,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(50805080)
航空科学基金资助项目(20090752008)
南京航空航天大学基本科研业务费专项科研基金资助项目(NS2010150)
关键词
超磁致伸缩执行器
射流伺服阀
热补偿
预压力
giant magnetostrictive actuator
jet pipe servo valve
thermal compensation
preliminary pressure
