航空学报 > 2014, Vol. 35 Issue (1): 171-178   doi: 10.7527/S1000-6893.2013.0379

采用压电叠层作动器的弹性梁振动主动控制实验研究

宋来收, 夏品奇   

  1. 南京航空航天大学 航空宇航学院, 江苏 南京 210016
  • 收稿日期:2012-11-10 修回日期:2013-09-02 出版日期:2014-01-25 发布日期:2013-09-17
  • 通讯作者: 夏品奇,Tel.:025-84895795 E-mail:xiapq@nuaa.edu.cn E-mail:xiapq@nuaa.edu.cn
  • 作者简介:宋来收 男,博士研究生。主要研究方向:直升机振动及主动控制。E-mail:lss05012@nuaa.edu.cn;夏品奇 男,博士,教授,博士生导师。主要研究方向:直升机振动及控制。Tel:025-84895795 E-mail:xiapq@nuaa.edu.cn
  • 基金资助:

    直升机旋翼动力学国防科技重点实验室基金(NBA10004)

Experimental Investigation on Active Vibration Control of Elastic Beam by Using Piezoelectric Stack Actuator

SONG Laishou, XIA Pinqi   

  1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2012-11-10 Revised:2013-09-02 Online:2014-01-25 Published:2013-09-17
  • Supported by:

    The Science and Technology Foundation of State Key Laboratory of Rotorcraft Aeromechanics (NBA10004)

摘要:

结构响应主动控制系统中常用的惯性作动器由于附加质量大、工作频带窄和响应速度慢等缺点,降低了控制系统的性能。压电作动器具有质量轻、工作频带宽和响应速度快等优点,作为高效执行元件能有效地提高控制系统的性能。本文采用压电叠层作动器驱动自由-自由弹性梁模型,以观测点的加速度响应为控制目标,采用频域谐波稳态控制策略进行了自由梁结构谐波振动响应主动控制实验研究。实验结果表明,本文建立的采用压电叠层作动器的结构响应主动控制系统能有效地控制弹性梁结构的振动水平,并具有快速跟踪外激励变化的自适应控制能力。

关键词: 弹性梁, 压电叠层作动器, 谐波振动, 自适应振动控制, 实验研究

Abstract:

The inertial actuator is often used in the active control system of structural response. Due to its shortcomings such as heavy weight, narrow band of working frequency and slow response speed, it hampers the performance of the control system. The piezoelectric actuator has the advantages of lighter weight, wider band of working frequency and faster response speed and can effectively improve the performance of the control system as an efficient actuator. In this paper, an experimental investigation on the active vibration control of a free-free elastic beam structure is conducted by using a piezoelectric stack actuator, taking the acceleration response at the observed point as the control objective and using the harmonic steady control strategy in the frequency domain. The experimental results demonstrate that the active vibration control system established in this paper can effectively control the vibration level of an elastic beam structure and has the adaptive control ability to fast track changes of external excitation.

Key words: elastic beam, piezoelectric stack actuator, harmonic vibration, adaptive vibration control, experimental investigation

中图分类号: