scholarly journals Active vibration control of thin constrained composite damping plates with double piezoelectric layers

Wave Motion ◽  
2020 ◽  
Vol 92 ◽  
pp. 102423 ◽  
Author(s):  
Xiongtao Cao ◽  
Gregor Tanner ◽  
Dimitrios Chronopoulos
Keyword(s):  
Vibration Control ◽  
Active Vibration Control ◽  
Piezoelectric Layers ◽  
Active Vibration

Active vibration control of structures using a leader–follower-based consensus design

2016 ◽  
Vol 24 (1) ◽  
pp. 60-72 ◽  
Author(s):  
Ehsan Omidi ◽  
S Nima Mahmoodi
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Active Vibration Control ◽  
Flexible Structures ◽  
Distributed Parameter ◽  
Arbitrary Form ◽  
Piezoelectric Layers ◽  
Active Vibration ◽  
System States ◽  
Virtual Leader

This paper proposes a new leader–follower-based consensus vibration controller to actively suppress unwanted oscillations in distributed-parameter flexible structures. Actuation and sensing is performed via piezoelectric layers in a collocated sense. The actuator/sensor patches for the vibration control system are considered to collaborate in a network, and follow a virtual leader which is accessible to all agents. Hence, a vibration controller law is defined, to remove disagreement between agents and force the agents to follow the virtual leader. The proposed approach is an observer-based design, in which an optimal consensus state estimator is initially designed. Stability of the closed-loop system is investigated and the optimality conditions of the system are derived. Although the designed vibration controller could be implemented for suppression tasks in different distributed-parameter systems, a flexible clamped-clamped beam is used here for equation derivation and numerical performance verification. According to the results, the optimal observer estimates the system states in a finite time, as expected, and the vibration controller suppresses unwanted oscillations, either in resonant or arbitrary form, to a much lower level; while the disagreement between agents converges to zero. Additionally, suppression performance and robustness of the controller to failure in control system elements is investigated in comparison with a conventional positive position feedback controller, and its superiority is illustrated and discussed.

Structural Modeling and Active Vibration Control of Smart FGM Plate through ANSYS

2017 ◽  
Vol 14 (04) ◽  
pp. 1750042 ◽  
Author(s):  
Kouider Bendine ◽  
Benallel Farouk Boukhoulda ◽  
Mohammed Nouari ◽  
Zouaoui Satla
Keyword(s):  
Vibration Control ◽  
Closed Loop ◽  
Volume Fraction ◽  
Active Vibration Control ◽  
Lower Surface ◽  
Functionally Graded ◽  
Mode Shapes ◽  
Linear Quadratic ◽  
Piezoelectric Layers ◽  
Active Vibration

This paper presents a methodology to use the software ANSYS in modeling and active vibration control of a functionally graded (FGM) plate with upper and lower surface-bonded piezoelectric layers. First a FGM plate with piezoelectric layers is designed using APDL ANSYS. Then a modal analysis has been carried out to get the first five rank frequencies and mode shapes. A proportional–integral–derivative (PID) and a linear-quadratic-based output feedback controller are introduced to realize the vibration control through a closed loop. Results for various volume fraction indexes are presented.

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