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Experiments on vibration control of a piezoelectric laminated paraboloidal shell

机译：压电叠层抛物面壳的振动控制实验

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摘要

A paraboloidal shell plays a key role in aerospace and optical structural systems applied to large optical reflector, communications antenna, rocket fairing, missile radome, etc. Due to the complexity of analytical procedures, an experimental study of active vibration control of a piezoelectric laminated paraboloidal shell by positive position feedback is carried out Sixteen PVDF patches are laminated inside and outside of the shell, in which eight of them are used as sensors and eight as actuators to control the vibration of the first two natural modes. Lower natural frequencies and vibration modes of the paraboloidal shell are obtained via the frequency response function analysis by Modal VIEW software. A mathematical model of the control system is formulated by means of parameter identification. The first shell mode is controlled as well as coupled the first and second modes based on the positive position feedback (PPF) algorithm. To minimize the control energy consumption in orbit, an adaptive modal control method is developed in this study by using the PPF in laboratory experiments. The control system collects vibration signals from the piezoelectric sensors to identify location(s) of the largest vibration amplitudes and then select the best two from eight PVDF actuators to apply control forces so that the modal vibration suppression could be accomplished adaptively and effectively.
机译：抛物面壳在应用于大型光学反射器，通信天线，火箭整流罩，导弹天线罩等的航空航天和光学结构系统中起着关键作用。由于分析程序的复杂性，对压电叠层抛物面进行主动振动控制的实验研究通过正向位置反馈对壳体进行壳体内外层叠了十六个PVDF贴片，其中八个用作传感器，八个用作执行器以控制前两个自然模式的振动。通过Modal VIEW软件的频率响应函数分析，可获得抛物面壳的较低固有频率和振动模式。通过参数识别来建立控制系统的数学模型。基于正位置反馈（PPF）算法，控制第一壳模式以及耦合第一模式和第二模式。为了使控制能量的消耗最小化，本研究通过在实验室实验中使用PPF开发了一种自适应模态控制方法。控制系统从压电传感器收集振动信号以识别最大振幅的位置，然后从八个PVDF执行器中选择最佳的两个来施加控制力，从而可以自适应有效地实现模态振动抑制。

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  • 来源
    《Mechanical systems and signal processing》 |2017年第1期|279-295|共17页
  • 作者

    Honghao Yue; Yifan Lu; Zongquan Deng; Hornsen Tzou;

  • 作者单位

    School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang Province 150001 PR China;

    School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang Province 150001 PR China;

    School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang Province 150001 PR China;

    College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Paraboloidal shell; PVDF; Vibration control; Positive position feedback (PPF);

    机译：抛物面壳PVDF;振动控制;正位置反馈（PPF）;

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