Design and driving characteristics of duplex piezoelectric actuator for fuze

被引：0
|
作者：
Wang, Xujian [1 ]
Wang, Xinjie [1 ]
Li, Feng [1 ]
机构：
[1] School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing,210094, China
来源：
Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | 2024年 / 56卷 / 08期
关键词：
To realize the recovery function of the fuze safety system state and meet the needs of the global safety control of the fuze; a duplex piezoelectric drive is proposed for application in electromechanical safety systems. Firstly; the bipedal piezoelectric drive was referred to and the structure design of the duplex piezoelectric drive was carried out according to the design requirements; and the working mechanism was analyzed. Subsequently; the structure of the designed duplex piezoelectric driver was optimized; and the motion trajectory equation of the driving foot was given based on the optimization results; which ensures that the driving foot forms an elliptical-like motion trajectory. Then; an experimental platform was built to test and analyze the drive characteristics of the duplex piezoelectric drive prototype. The optimal working frequency was determined; and the relationship curve between the round-trip motion speed and the excitation voltage peak-peak of the duplex piezoelectric driver was obtained. Finally; in consideration of the high impact working environment of the fuze; the anti-high overload measures of the duplex piezoelectric driver were proposed; and the anti-high impact overload test of the piezoelectric driver was carried out. The results showed that the motion speed of the piezoelectric driver is positively correlated with the peak-to-peak excitation voltage; and the movement speed of the piezoelectric driver exhibits the optimal motion speed under the action of the excitation voltage with a frequency of 130 Hz. The duplex piezoelectric drive was able to work properly under the shock load of 20 kg; which verifies the effectiveness of the anti-high overload measures. Furthermore; the feasibility of the duplexed piezoelectric drive in achieving the recovery funtion of the fuze safety state was further verified. © 2024 Harbin Institute of Technology. All rights reserved;
D O I：
10.11918/202306087
中图分类号：
学科分类号：
摘要：
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页码：135 / 144
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