Affiliations: [a] School of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing, Jiangsu, China | [b] School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China
Correspondence:
[*]
Corresponding author: Yujuan Tang, School of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing, Jiangsu, China. E-mail:yjtang@jit.edu.cn
Abstract: A novel linear-type piezoelectric ultrasonic actuator for application in a
Smart Fuze Safety System (SFSS) is investigated in this paper. Considering
the requirements of SFSS, the structural parameters of the piezoelectric
ultrasonic actuator are initially determined. Furthermore, sensitivity
analysis of the structural parameters to the frequency consistency is
conducted using finite element (FEM) software. To validate the results of
FEM, the frequency sweep tests of the piezoelectric ultrasonic actuator are
performed to determine the stator's actual working mode frequencies with
PSV-300-B Doppler laser vibrometer system. Additionally, the results of
frequency sweep test are compared with that of the FEM analysis, and further
verified by impedance analyzer. To investigate the overall performance of
the piezoelectric ultrasonic actuator, vibration modes of actuator's stator,
output speed and force of the piezoelectric ultrasonic actuator are tested.
The experimental results show that the output speed and force of the
actuator can reach 88.2 mm/s and 2.3 N respectively, which can meet the
demands of the SFSS.
