基于双压电执行器的高频响伺服刀架实现研究
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浙江省科技厅公益技术基金资助项目(2013C31017);浙江省自然科学基金资助项目(LY15E050005)

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Realization Research of Highfrequency Response Servo Turret Based on Double Piezoelectric Actuators
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    摘要:

    目前应用压电执行器的快速伺服刀架只能提供单向的驱动力,回复时间长,据此提出了一种双压电执行器构造的高频响伺服刀架。采用经典PI迟滞模型和其逆模型分别对2个压电执行器进行建模,在此基础上实现2个执行器的联动控制。为了提高控制精度,对经典PI模型进行改进,使其具有动态和非对称性。有限元软件分析得到该刀架的响应速度为10.21 mm/s。最后实验结果表明刀架的响应速度为9.62 mm/s。

    Abstract:

    Currently the turret with piezoelectric actuators mostly can only provide oneway driving force with long response time.A kind of highfrequency response servo turret with double piezoelectric actuator was presented.The classical PI model and its inverse model was used to model the former and latter piezoelectric actuator respectively,achieving the complex control of two actuators.In order to improve the control accuracy,the conventional PI model was improved with the characteristics of a dynamic and nonsymmetric.The finite element software analysis showed that the response speed of cutter was 10.21 mm/s.Finally,the experimental verification showed that the speed of response frequency response servo turret was 9.62 mm/s.

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孙涛,李国平,姚秋水.基于双压电执行器的高频响伺服刀架实现研究[J].压电与声光,2015,37(4):655-658. SUN Tao, LI Guoping, YAO Qiushui. Realization Research of Highfrequency Response Servo Turret Based on Double Piezoelectric Actuators[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2015-07-22
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