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Optimal locations of discontinuous piezoelectric laminated cylindrical shell with point supported elastic boundary conditions for vibration control

机译：具有点支撑弹性边界条件的不连续压电层压圆柱形壳体的最佳位置，用于振动控制

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摘要

In this paper, the vibration control of discontinuous piezoelectric laminated shell with point supported elastic boundary conditions are investigated, and the location of piezoelectric layer are optimized. The point supported boundary condition are simulated by using artificial springs. The position with the piezoelectric layer are considered to be a laminated shell, and the position without the piezoelectric layer are regarded as a thin-walled cylindrical shell. The strain and curvature expressions of the cylindrical shell are obtained by the first-order shear shell theory, and the Chebyshev polynomial is used as the admissible displacement functions. Then, the differential equation of coupling motion of piezoelectric laminated cylindrical shells is established by using Lagrange equation, and the negative velocity feedback control is used as the control strategy. The Newmark method is used to obtain the response curves. The accuracy of the model are verified by comparing with the ANSYS results. For better vibration control, the optimal locations of the piezoelectric layer are obtained by using the Multi-Objective Particle Swarm Optimization algorithm based on the crowding distance. Finally, the optimization results and the vibration control of the piezoelectric layer are verified by analyzing the radial displacement response of the cylindrical shell.
机译：本文研究了具有点支撑弹性边界条件的不连续压电层压壳的振动控制，优化了压电层的位置。通过使用人造弹簧模拟点支持的边界条件。用压电层的位置被认为是层压壳，并且没有压电层的位置被视为薄壁圆柱形壳体。通过一阶剪切壳理论获得圆柱形壳的应变和曲率表达，并且Chebyshev多项式用作可允许的位移功能。然后，通过使用拉格朗日等式建立压电叠片圆柱壳的耦合运动的微分方程，并且负速度反馈控制用作控制策略。纽马克方法用于获得响应曲线。通过与ANSYS结果进行比较来验证模型的准确性。为了更好的振动控制，通过使用基于拥挤距离的多目标粒子群优化算法获得压电层的最佳位置。最后，通过分析圆柱形壳的径向位移响应来验证压电层的优化结果和振动控制。

著录项

  • 来源
    《Composite Structures》 |2020年第2期|111575.1-111575.15|共15页
  • 作者

    Li Chaofeng; Li Peiyong; Zhang Zixuan; Wen Bangchun;

  • 作者单位

    Northeastern Univ Sch Mech Engn & Automat Shenyang 110819 Liaoning Peoples R China|Northeastern Univ Key Lab Vibrat & Control Aeroprop Syst Minist Educ China Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mech Engn & Automat Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mech Engn & Automat Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mech Engn & Automat Shenyang 110819 Liaoning Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Smart materials; Point supported elastic boundary condition; Active vibration control; Position optimization;

    机译：智能材料;点支持的弹性边界条件;主动振动控制;位置优化;

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