农业机械学报2011，Vol.42Issue(3)：208-212,218,6.
2D数字阀滞环颤振补偿技术研究
Dither Compensation Technology for Hysteresis of 2D Digital Valve
摘要
Abstract
The mathematical model of 2D digital valve was established and its hysteresis characteristics was first simulated and analyzed. In order to diminish and even eliminate hysteresis, a dither compensation technology which used high frequency dither signal to superimpose on input signal was proposed. Then the special test rig was built and experimental study was carried out. The experimental results revealed that when dither amplitude was 25% , 50% and 100% of backlash magnitude respectively, the hysteresis width accordingly reduced from 2.2% to about 1.7%, 1.1% and 0.5% of backlash magnitude respectively. It is finally concluded that the proposed dither compensation approach can diminish and even eliminate hysteresis of 2D digital valve effectively.关键词
2D数字阀/颤振/滞环特性/齿隙Key words
2D digital valve/ Dither/ Hysteresis characteristics/ Backlash分类
机械制造引用本文复制引用
李胜,阮健,孟彬..2D数字阀滞环颤振补偿技术研究[J].农业机械学报,2011,42(3):208-212,218,6.基金项目
国家自然科学基金资助项目(50975258)和浙江大学流体传动与控制国家重点实验室资助项目(GZKF-2008005) （50975258）
