|
Abstract: The structure and principle of the GMM actuator and the new
nozzle flapper valve with GMA are presented. The models on dynamic
characteristics of the nozzle flapper valve are established.
Experimental system testing the control pressure is also constructed.
The output performance of the control pressure is done under typical
working conditions. Influence on the control pressure is analyzed with
varied input pressures and structure parameters. And matching relation
of the different parameters is obtained under the best control pressure.
The results show that the nozzle flapper valve has wide pressure control
performance, good linearity, and high response speed. And theoretical
basis is presented to further introduce the GMA nozzle flapper valve
into electro-hydraulic servo valve.
Key words: Giant magnetostrictive Actuator Nozzle flapper valve
Control pressure Experiment
CLC No: TH137.
5
国家自然科学基金(59835160)和安徽省教育厅自然科学基金(2003kj109)资助项目.
Received 20040929, received in revised form 20041225
|