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Development and Analysis of Multi-Degree-of-Freedom Piezoelectric Actuator Based on Elephant Trunk Structure.
Li, Zheng; Wang, Kaiwen; Wang, Haibo; Chen, Xuetong; Guo, Xiaoqiang; Sun, Hexu.
Afiliação
  • Li Z; School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China.
  • Wang K; School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
  • Wang H; School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
  • Chen X; School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
  • Guo X; School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
  • Sun H; School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China.
Sensors (Basel) ; 23(14)2023 Jul 10.
Article em En | MEDLINE | ID: mdl-37514559
ABSTRACT
In most of the piezoelectric stacked motors studied, the stator usually adopts two compound modes to drive the rotor to do step motion. This design method not only improves the utilization rate of the stator but also improves the torque output to a certain extent and increases the output displacement. In this study, a new type of multi-degree of freedom piezoelectric actuator is proposed for the utilization of a stator. The actuator realizes three compound vibration modes of bending-longitudinal-bending on a single stator, which changes the two compound modes of longitudinal bending and also changes the single motion mode of the stepper motor along a straight line. The rotor is set as a ball to drive it to rotate. The designed motor presents a different driving signal under which the rotor will no longer be accompanied by a return displacement. The finite element method is used to complete the design analysis, and the experimental analysis of the designed motor is carried out after the prototype is made. The multi-degree-of-freedom piezoelectric actuator can achieve a speed of 8.56 mm/c and a driving load of 1200 g at a voltage of 400 v and a working frequency of 42.7 kHz.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article