Multiple Degree of Freedom Model of Giant Magnetostrictive Actuator

被引：2

作者：

Li, Dongwei ^{[1
,2
]}

He, Zhongbo ^{[1
]}

Zhang, Peilin ^{[1
]}

Yang, Zhaoshu ^{[1
]}

Rong, Ce ^{[1
]}

Sun, Yezun ^{[3
]}

机构：

[1] Ordnance Engn Coll, Vehicles & Elect Engn Dept, Heping West 97, Shijiazhuang 050003, Hebei, Peoples R China

[2] Beijing Inst Technol, Coll Mech & Vehicle, Beijing 100081, Peoples R China

[3] GAD Mil Representat Bur, Mil Representat Off 247, Taiyuan 030009, Shanxi, Peoples R China

来源：

MATERIALS SCIENCE-MEDZIAGOTYRA | 2017年 / 23卷 / 03期

基金：

中国国家自然科学基金;

关键词：

giant magnetostrictive actuator; multiple degrees of freedom model; stable response; harmonic response; oil load; JILES-ATHERTON MODEL;

D O I：

10.5755/j01.ms.23.3.16321

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A specific giant magnetostrictive actuator (GMA) is developed for injectors in high-pressure-common-rail system. The magnetic strength, with its axial distribution unevenness considered, is determined by the driving current and axial dimension. Multiple degrees of freedom model of the specific GMA is established based on Jiles-Atherton (J-A) model and vibration theory. The number of degrees of freedom is optimized, and step response is calculated and its state-space model is provided and computed using MATLAB. Steady-state response and frequency response in moderate driving level is achieved and verified by the test results, and load contributed by fluid is regarded as elastic-damping load and the specific response of GMA in this case could be forecast. From the measured result, the proposed multiple degrees of freedom model are amenable to describe the stable response of the specific GMA under low frequency harmonic driving.

引用

页码：210 / 215

页数：6

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