Design and experiment of novel piezoelectric double nozzle flapper electro-hydraulic servo valve

被引：4
作者：
Zhou, M. L. [1 ]
Gao, W. [1 ]
Tian, Y. T. [1 ]
Yang, Z. G. [2 ]
机构：
[1] Jilin Univ, Coll Commun Engn, Changchun 130022, Peoples R China
[2] Jilin Univ, Coll Machinery Sci & Engn, Changchun 130022, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY | 2012年 / 45卷 / 1-4期
基金：
中国国家自然科学基金;
关键词：
piezoelectric bimorph; electricity-machine transducer; vibration mode; hysteresis loop; electro-hydraulic servo valve; FINITE-ELEMENT-ANALYSIS; BEHAVIOR;
D O I：
10.1504/IJMPT.2012.051330
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To improve the performance of the existing nozzle flapper type electro-hydraulic servo valve, a novel piezoelectric double nozzle flapper electro-hydraulic servo valve (PDNFESV) is proposed. An electricity-machine transducer is designed to replace the torque motor in the traditional nozzle flapper servo valve. The electricity-machine transducer is constructed by two identical piezoelectric bimorphs and a beryllium bronze board. The design and fabrication of the electricity-machine transducer is introduced. The structure and work principle of the novel PDNFESV is analysed. The static and dynamic characteristic of the electricity-machine transducer are tested, the experimental results show that the designed electricity-machine transducer can meet the demand of the novel PDNFESV. At last, the performance indexes of the novel PDNFESV are researched.
引用
收藏
页码：41 / 52
页数：12
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