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国防科技大学 机电工程与自动化学院机电系,湖南 长沙,410073
收稿日期:2006-04-15,
修回日期:2006-11-14,
网络出版日期:2007-01-30,
纸质出版日期:2007-01-30
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彭小强, 戴一帆, 唐 宇. 基于灰色预测控制的磁流变抛光液循环控制系统[J]. 光学精密工程, 2007,15(1):100-105.
PENG Xiao-qiang, DAI Yi-fan, TANG Yu. Circulatory system for MR fluid based on gray forecast control algorithm[J]. Optics and precision engineering, 2007, 15(1): 100-105.
保证磁流变液成分的稳定
即保证磁流变液零磁场粘度的稳定
进而保证抛光过程中材料去除模型的稳定
是磁流变抛光技术实现确定性加工的必要条件。讨论了研制的磁流变液循环控制系统
通过检测磁流变液在喷嘴中的沿程压力损失来测量磁流变液零磁场粘度
并针对其粘度控制是大时延系统的特点
采用灰色预测控制算法
实现了磁流变液零磁场粘度的闭环控制
较好地解决了磁流变液的成分稳定控制问题。
A Magnetorheological(MR) fluid circulatory system for MR finishing developed by us is introduced in this paper. The viscosity of MR fluid in non-magnetic field is obtained by measuring the pressure loss in a certain pipe. Because the viscosity control system is a big delay timing system
the gray forecast controlling algorithm is adopted to realize the viscosity control. The problem of keeping the composition of magnetorheological fluid stable can be solved. The experiment results prove that the circulatory system can keep the removal model steady.
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