超磁致伸缩材料在电液伺服阀中的应用现状
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摘要
超磁致伸缩材料是一种具有响应速度快、磁致伸缩应变大、能量密度高等优良特性的新型功能材料,针对其研究和应用已经成为当前热点。基于现代工业对高性能电液伺服阀的需求,描述了该材料的磁致伸缩效应,并对其基本性能及物理效应作了阐述,同时通过对比压电陶瓷、形状记忆合金的性能参数,分析了超磁致伸缩材料的性能优势。最后着重介绍了该材料在喷嘴挡板阀、射流管阀及直接驱动式电液伺服阀当中的应用现状,并基于此现状对研制高性能的超磁致伸缩电液伺服阀关键技术进行了展望。
Giant magnetostrictive material( GMM) is a kind of novel functional material with excellent features,such as fast response,large magnetostriction and high energy density,and it has attracted the attention of researchers from different fields. Based on the demand of high performance electro-hydraulic servo valve for modern industry,this paper describes the magnetostrictive effect of GMM in brief and expounds its basic properties as well as several physical effects. Then,comparing the performance parameters of piezoelectric ceramics and shape memory alloy,we analyze the performance advantages of GMM. Finally,the application status of GMM in nozzle flapper valve,jet pipe valve and direct drive electro-hydraulic servo valve is introduced emphatically. On the basis of that,the key technology of developing high performance magnetostrictive electro-hydraulic servo valve is prospected.
Giant magnetostrictive material( GMM) is a kind of novel functional material with excellent features,such as fast response,large magnetostriction and high energy density,and it has attracted the attention of researchers from different fields. Based on the demand of high performance electro-hydraulic servo valve for modern industry,this paper describes the magnetostrictive effect of GMM in brief and expounds its basic properties as well as several physical effects. Then,comparing the performance parameters of piezoelectric ceramics and shape memory alloy,we analyze the performance advantages of GMM. Finally,the application status of GMM in nozzle flapper valve,jet pipe valve and direct drive electro-hydraulic servo valve is introduced emphatically. On the basis of that,the key technology of developing high performance magnetostrictive electro-hydraulic servo valve is prospected.
引文
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[6]赵冉,卢全国,雍康俊,等.磁致伸缩执行器驱动的精密流量阀建模与仿真[J].机械设计与研究,2015,(6):115-118.ZHAO Ran,LU Quanguo,YONG Kangjun,et al.Modeling and Simulation of Precision Flow Valve by Magnetostrictive Actuator[J].Mechanical Design and Research,2015,(6):115-118.
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[11]李东,袁惠群.超磁致伸缩换能器耦合磁弹性模型与振动特性分析[J].固体力学学报.2011,32(4):365-369.LI Dong,YUAN Huiqun.Analysis on Coupling Magneto-elastic Characteristic of a Giant Magnesotrictive Transducter[J].Chinese Journal of Solid Mechanics,2011,32(4):365-369.
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[14]WANG T,ZHOU Y.Nonlinear Dynamic Model with Multifields Coupling Effects for Giant Magnetostrictive Actuators[J].International Journal of Solid Structures,2013,(50):2970-2979.
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[20]高晓辉,刘永光,裴忠才.超磁致伸缩作动器小回线动态J-A模型[J].北京航空航天大学学报,2016,42(12):2648-2653.GAO Xiaohui,LIU Yongguang,PEI Zhongcai.The Dynamic J-A Model of Small Back Line of Giant Magnetostrictive Actuator[J].Journal of Beihang University of Aeronautics and Astronautics,2016,42(12):2648-2653.
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[23]左希庆,刘国文,江海兵,等.2D电液伺服流量阀特性研究[J].农业机械学报,2017,48(2):400-406.ZUO Xiqing,LIU Guowen,JIANG Haibing,et al.Characteristics of Airborne 2D Electro-hydraulic Servo Flow Valve[J].Transactions of the Chinese Society for Agricultural Machinery,2017,48(2):400-406.
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