| 引用本文: | 王旭建,王新杰,李峰.引信用双工形压电驱动器的设计及其驱动特性[J].哈尔滨工业大学学报,2024,56(8):135.DOI:10.11918/202306087 |
| WANG Xujian,WANG Xinjie,LI Feng.Design and driving characteristics of duplex piezoelectric actuator for fuze[J].Journal of Harbin Institute of Technology,2024,56(8):135.DOI:10.11918/202306087 |
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| 摘要: |
| 为实现引信安全系统状态的恢复功能,满足引信全域安全控制的需求,提出了一种双工形压电驱动器应用于机电安全系统中。首先,参考双足式压电驱动器并根据设计要求对双工形压电驱动器进行了结构设计,并分析了其工作机理。然后,对设计的双工形压电驱动器进行了结构优化,基于优化结果给出驱动足的运动轨迹方程,保证了驱动足形成类椭圆运动轨迹。接着,搭建了实验平台对双工形压电驱动器样机进行驱动特性测试分析,确定了最佳工作频率,并得到了双工形压电驱动器往返运动速度和激励电压峰峰值的关系曲线。最后,针对引信高冲击工作环境,提出双工形压电驱动器抗高过载措施,并对压电驱动器进行抗高冲击过载实验。结果表明:压电驱动器的运动速度与激励电压峰峰值呈正相关,且在频率为130 Hz的激励电压作用下,压电驱动器的运动速度最佳；双工形压电驱动器在20 kg冲击载荷作用下仍能正常工作,验证了抗高过载措施的有效性。进一步验证了双工形压电驱动器实现引信安全状态可恢复功能的可行性。 |
| 关键词: 压电驱动器 双工形 可恢复式引信 结构优化 驱动特性 抗高过载 |
| DOI：10.11918/202306087 |
| 分类号:TJ403.3 |
| 文献标识码:A |
| 基金项目:机电动态控制重点实验室基金(6142601200402) |
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| Design and driving characteristics of duplex piezoelectric actuator for fuze |
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WANG Xujian,WANG Xinjie,LI Feng
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(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)
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| Abstract: |
| 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. |
| Key words: piezoelectric actuator duplex recoverable fuze structural optimization driving characteristics anti-high overload |
