航空学报 > 2011, Vol. 32 Issue (7): 1336-1344   doi: CNKI:11-1929/V.20110303.1352.001

超磁致伸缩执行器驱动的射流伺服阀参数优化

李跃松1, 朱玉川1, 吴洪涛1, 田一松2, 牛世勇2   

  1. 1. 南京航空航天大学 机电学院, 江苏 南京 210016;
    2. 西安飞行自动控制研究所, 陕西 西安 710065
  • 收稿日期:2010-11-08 修回日期:2011-01-04 出版日期:2011-07-25 发布日期:2011-07-23
  • 作者简介:李跃松(1985- ) 男,博士研究生。主要研究方向:流体传动与控制,机电控制及自动化。 E-mail: liyaosong707@163.com 朱玉川(1974- ) 男,博士,副教授。主要研究方向:流体传动与控制,机电控制及自动化。 Tel: 025-84892503 E-mail: meeyczhu@nuaa.edu.cn 吴洪涛(1962- ) 男,博士,教授,博士生导师。主要研究方向:机电控制及自动化,多体系统动力学。 E-mail: meehtwu@nuaa.edu.cn
  • 基金资助:

    国家自然科学基金(50805080);航空科学基金(20090752008);南京航空航天大学基本科研业务费专项科研项目(NS2010150)

Parameter Optimization of Jet-pipe Servovalve Driven by Giant Magnetostrictive Actuator

LI Yuesong1, ZHU Yuchuan1, WU Hongtao1, TIAN Yisong2, NIU Shiyong2   

  1. 1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. Flight Automatic Control Research Institute, Xi’an 710065, China
  • Received:2010-11-08 Revised:2011-01-04 Online:2011-07-25 Published:2011-07-23

摘要:

为提高射流伺服阀的性能,提出了一种超磁致伸缩执行器驱动的直动式射流伺服阀。采用磁场有限元分析的方法,建立了超磁致伸缩执行器输出电流与输出位移的关系,分析了线圈结构对其输出位移的影响,并给出了所设计执行器的实验曲线。结合所设计的射流伺服阀的特点,以能量传递效率最大为优化目标,建立了射流结构与射流效率的关系方程,求出了所设计射流伺服阀的最佳射流结构参数,并利用流场分析软件分析了其静态特性,其零位无因次压力增益为1.7 mm-1,零位无因次流量增益为1.9 mm-1

关键词: 射流伺服阀, 超磁致伸缩执行器, 参数优化, 流场分析, 静态特性, 压力增益

Abstract:

In order to improve the performance of a jet-pipe servovalve, a novel direct drive jet-pipe servovalve driven by a giant magnetostrictive actuator is proposed in this paper. By means of magnetic field finite element analysis, a model of the giant magnetostrictive actuator is established. The influence of coil structure on actuator displacement is analyzed and the experimental curves of the designed actuator are given. On the basis of the designed jet-pipe servovalve and taking the maximum energy transfer efficiency as the optimization objective, an equation is built between the jet parameters and jet efficiency. The best jet structure parameters of the designed servovalve are worked out, and its static characteristics are analyzed with the help of a flow field analysis software. The results show that its null dimensionless pressure gain is 1.7 mm-1, and the null dimensionless flow gain is 1.9 mm-1.

Key words: jet-pipe servovalve, giant magnetostrictive actuator, parameter optimization, flow analysis, static characteristic, pressure gain

中图分类号: