Edge effect on viscous drag of the rotor in liquid floating rotational micro-gyroscope

摘要：

　　A liquid floating rotational micro-gyroscope is proposed in this paper,whose stability is improved by liquid suspension.High rotor velocity is needed to improve its sensitivity.Edge effect is the phenomenon that sharp edges cause much more viscous drag.This work researches edge effects influence on viscous drag to speed up the rotor.Flow field models of the sharp edge structure and fillet structure are established separately.Viscous drag is measured by simulation and experiment.Edge effect causes a lot of viscous drag and it can be reduced significantly by filleting the rotor.The maximal reduction is one third relative to the sharp edge structure,and it is reached when fillet curvature radius is half of rotor thickness.

关键词： liquid floating micro-gyroscope rotor viscous drag fillet edge effect

作者: Haifeng Zhang Xiaoshu Zhang Xiaowei Liu Rui Weng

作者单位: Key Laboratory of Micro-systems and Micro-structures Manufacturing(Harbin Institute ofTechnology), M MEMS Center, Harbin Institute of Technology, Harbin, CHINA

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-6

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）