Active vibration control of rotating carbon nanotube reinforced composite cylindrical shells via piezoelectric patches

Author:

Sun Shupeng1ORCID,Zhao Xinqiu1,Yang Yang2,Cao Dengqing3ORCID

Affiliation:

1. School of Civil Engineering, Shandong University, Jinan, China

2. School of Mechanics and Aerospace Engineering, Southwest Jiaotong University, Chengdu, China

3. Division of Dynamics and Control, School of Mathematics and Statistics, Shandong University of Technology, Zibo, China

Abstract

This paper addresses the active vibration control of rotating carbon nanotube reinforced composite (CNTRC) cylindrical shells via piezoelectric actuator and sensor pairs. Considering circumferential initial stresses and Coriolis forces induced by rotation, an electromechanical coupling model of a simply supported CNTRC cylindrical shell, covered with surface-bonded piezoelectric sensors/actuators is established using the Lagrange equations and the model validation is carried out through a comparative analysis with existing literature. To suppress vibrations of rotating CNTRC cylindrical shells over a range of speeds, an LQR (Linear Quadratic Regulator) closed-loop controller is designed and its effectiveness is analyzed and evaluated through dynamic response analysis. Furthermore, the optimization of piezoelectric patch layout is performed by analyzing the performance of the controller for rotating CNTRC shells with typical piezoelectric sensors/actuators distributions. This paper presents and validates a strategy for vibration control of rotating CNTRC cylindrical shells using piezoelectric patches. The findings derived can offer guidance for vibration suppression of rotating thin-walled structures in practical engineering applications.

Funder

Shandong Provincial Natural Science Foundation of China

Opening Project of Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province

National Natural Science Foundation of China

Fundamental Research Funds for the Central Universities in Southwest Jiaotong University of China

Publisher

SAGE Publications

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