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Proceedings Paper

Design and experiments of a novel micro-displacement mechanism based on piezoelectricity actuator
Author(s): Ya Li; Jinghe Wang; Wen-jie Zhai; Shen Dong; Guo Li
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Paper Abstract

This paper aims at the design and analysis of a novel micro-displacement mechanism. The micro-displacement adopts a novel flexure hinge as support, which is driven by piezoelectric actuator (PZT). The flexure hinge consists of two flexure foils, which parallel with each other and are combined permanently with connection shaft. The flexure foil structure was analyzed and simplified as simple supported beam, and the mathematical model was established. The flexure hinge was simulated with finite element analysis method. From the simulation results, the new flexure hinge has less maximum strain fluctuation rate under different force directions, compared with traditional flexure hinges. Finally, experiments were carried out on the new flexure hinge. The radial rigidities of different directions were experimentally measured, which indicate close results compared with the above analysis. According to the results, the novel micro-displacement mechanism overcomes the shortcomings of the traditional micro-displacement mechanism, and greatly improves the radial stiffness.

Paper Details

Date Published: 16 October 2012
PDF: 6 pages
Proc. SPIE 8416, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 84162J (16 October 2012); doi: 10.1117/12.973729
Show Author Affiliations
Ya Li, Harbin Institute of Technology (China)
Heilongjiang Univ. of Chinese Medicine (China)
Jinghe Wang, Harbin Institute of Technology (China)
Wen-jie Zhai, Harbin Institute of Technology (China)
Shen Dong, Center for Precision Engineering,Harbin Institute of Technology,Harbin (China)
Guo Li, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 8416:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Eric Ruch; Shengyi Li, Editor(s)

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