Kinematics Analysis of Bridge-type Micro-displacement Mechanism Based on Flexure Hinge
Bridge-type micro-displacement mechanism based on flexible hinge is a classical displacement magnifying mechanism. A flexible branched chain model was established to analyze the characteristics of the mechanism according to its symmetrical structure, thus the formulas for calculating output displacement and displacement amplification ratio of the displacement amplification mechanism were derived. Finite element simulation was carried on by software ANSYS11.0, and then compared with the theoretical model. Finally, an experiment sample piece was designed and processed to verify the theoretical model. The results showed that: the displacement amplification ratio of the bridge-type micro-displacement mechanism will increase first and then decrease, while the distance of the flexible hinges ly increase, and when the influence angle of amplification ratio γ = 0.688°, the displacement amplification ratio get its maximum; Bridge-type micro-displacement mechanism can realize a displacement amplification ratio of more than 40 times, but the error will be amplified at the same time, so the amplification ratio of the bridge-type amplification mechanism should not be too large.
flexure hinge bridge-type micro-displacement mechanism displacement amplification ratio finite element simulation
YE Guo LI Wei WANG Yu-qiao YANG Xue-feng YU Ling
College of mechanical and electrical engineeringChina University of Mining & Technology Xuzhou 22100 College of mechanical and electrical engineering China University of Mining & Technology Xuzhou 2210
国际会议
2010 IEEE信息与自动化国际会议(ICIA 2010)
哈尔滨
英文
1-5
2010-06-20（万方平台首次上网日期，不代表论文的发表时间）