沈阳工业大学学报2012，Vol.34Issue(4)：407-411,5.
压电阀电一机械转换器结构设计分析
Design and analysis for electromechanical converter of piezoelectric valve
摘要
Abstract
To improve the static and dynamic performances of the existing nozzle flapper electro-hydraulic servo valve, the piezoelectric bimorph and beryllium bronze were adopted to prepare the electromechanical converter of nozzle flapper piezoelectric valve. The influence of such structural parameters as the width, length and thickness of both piezoelectric and metal layers on the static and dynamic performances of the electromechanical converter was investigated. The results show that the width has no effect on the static and dynamic performances, and the output displacement is proportional to the square of length. With increasing the length, the amplitude frequency and fundamental frequcncy reduce. With increasing the thickness of metal layer or piezoelectric layer, the output displacement reduces, while the amplitude frequency and fundamental frequency increase. Finally, the simulation analysis on the vibration mode of electromechanical converter was performed. The result shows that the design requirements can be satisfied.关键词
压电晶片/电一机械转换器/伺服阀/喷嘴挡板/振型分析/结构参数/静态特性/动态特性Key words
piezoelectric bimorph/electromechanical converter/servo valve/nozzle flapper/vibrationmode analysis/structural parameter/static characteristic/dynamic characteristic分类
机械制造引用本文复制引用
周淼磊,杨志刚,高巍,田彦涛..压电阀电一机械转换器结构设计分析[J].沈阳工业大学学报,2012,34(4):407-411,5.基金项目
国家自然科学基金重点资助项目 （）
吉林省科技发展计划项目（20090122 （）
20115015） （）
吉林大学科学前沿与交叉学科创新项目（200903295）. （）
