Affiliations: State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, Shaanxi, China
Correspondence:
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Corresponding author: Minglong Xu, State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an 710049, China. Tel./Fax.: +86 29 82669093; E-mail:mlxu@xjtu.edu.cn
Abstract: The piezoelectric actuator shows good control of micro
linear displacement, but it cannot directly output the angular displacement.
In this paper, an angular displacement piezoelectric actuator is proposed,
which can amplify the displacement of the piezoelectric stack and realize
angular displacement output just through one piezoelectric stack. Finite
element modelling (FEM) simulations were used to analyse the angular
displacement and the stress conditions. To verify the results of the FEM
simulations, a prototype was manufactured and the experiments were
performed. The maximum angle displacement was 0.85° when the driven
voltage was 120 V.
