作 者：
薛光明;张培林;何忠波;李冬伟;黄英捷;张磊
单 位：
军械工程学院火炮工程系;北京理工大学机电学院;军械工程学院车辆与电气工程系
关键词：
超磁致伸缩致动器;喷油器;偏置磁场;驱动电压;性能
摘 要：
将超磁致伸缩材料的输出特点和喷油器的驱动需求相结合,设计并驱动适用于电控喷油器的超磁致伸缩致动器。针对常闭式电控喷油器仅需要单向和缩短位移的特点,结合超磁致伸缩材料在不同偏置磁场强度输出特性,提出了2种不同偏置磁场的致动器结构并分析了各自适用的电流输入方向;借助实验系统测试了2种致动器的稳态位移和响应时间,并分析了二者输出性能。针对传统直流方波驱动时致动器响应过慢的问题,借鉴电磁铁大电压快速开启的方法,设计了喷油器用超磁致伸缩致动器的驱动波形,并测试了该设计波形对强偏置致动器的驱动性能。研究结果表明,采用所设计的驱动电压,可将超磁致伸缩致动器的响应时间由4 ms降至1 ms,极大地提升了致动器的瞬态响应速度,同时,超磁致伸缩致动器可输出12~33μm的连续稳态位移,提供了更多的驱动效果。
译 名：
Design Method and Driving Voltage Waveform of Giant Magnetostrictive Actuator Used on Electronic Controlled Injector
作 者：
XUE Guangming;ZHANG Peilin;HE Zhongbo;LI Dongwei;HUANG Yingjie;ZHANG Lei;Vehicles and Electrical Engineering Department,Ordnance Engineering College;School of Mechatronical Engineering,Beijing Institute of Technology;Artillery Engineering Department,Ordnance Engineering College;
关键词：
giant magnetostrictive actuator;;injector;;bias magnetic field;;driving voltage;;performance
摘 要：
Combining the output characteristics of giant magnetostrictive material with the driving requirements of an electronic controlled injector,the structure design and driving method of giant magnetostrictive actuator suitable to the injector were proposed.The electronic controlled injector required the displacement in only one direction and the displacement should be shortened at the same time.Then two types of giant magnetostrictive actuators were presented by considering the impact of the bias magnetic field on the actuator's output,and the applicable currents in different bias fields were analyzed.Steadystate displacements and responding time of the two kinds of actuators were measured with the help of an experimental system.And the performance differences of the two actuators,accompanied by the reasons leading to them,were pointed out.As the traditional driving voltage for the giant magnetostrictive actuator,direct voltage in square waveform would cause quite long time in raising the coil current,which occupied most of the whole responding time of the actuator.To save responding time,a fast driving wave was designed with referring the high-voltage opening method used in an electromagnetic actuator.And the output performance of the actuator,strongly biased actuator taken as an example,under designed driving wave was measured and analyzed simultaneously.The results showed that designed driving voltage could reduce the responding time quite effectively from 4 ms to 1 ms.In addition,as the giant magnetostrictive actuator could output continuous displacements from 12 μm to 33 μm,the designed actuator supported more driving effects than the electromagnetic actuator.
