Design of a 6-DOF Precision Positioning Stage: Kinematic Analysis and Dynamic Modeling

被引:0
|
作者
Cai, Kunhai [1 ]
Tian, Yanling [1 ]
Yang, Zhen [1 ]
Shang, Jiangkun [1 ]
机构
[1] Tianjin Univ, Key Lab Mech Theory & Equipment Design, Minist Educ, Tianjin 300072, Peoples R China
关键词
6-DOF stage; Piezoelectric actuators; Kinematic analysis; Dynamic modeling; PARALLEL MECHANISM;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel 6-DOF precision positioning system is designed in this paper, which is assembled by two type 3-DOF precision positioning stages. Each stage is driven by three piezoelectric actuators ( PEAs), and guided by three symmetric T-shape hinges and three elliptical flexible hinges, respectively. The kinematics of this 6-DOF system are investigated. According to an effective kinematic model, the transformation matrix are obtained, which provides a useful tool to predict an output displacement. In addition, the dynamic model of the 6-DOF system is established. The PEAs can be treated as a force generator with a built-in spring-damper component. Furthermore, the characteristics of the 6-DOF system are evaluated in this paper by the FEM simulation. The design structure provides the high dynamic bandwidth. Meanwhile, the experiment is performed to verify the 6-DOF stage has a good characteristic.
引用
收藏
页码:223 / 228
页数:6
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