Active vibration control of a smart cantilever beam at resonance: A comparison between conventional and Real Time Control

2012 ◽  
Author(s):  
Arun P Parameswaran ◽  
K V Gangadharan
Keyword(s):  
Vibration Control ◽  
Real Time ◽  
Cantilever Beam ◽  
Active Vibration Control ◽  
Real Time Control ◽  
Time Control ◽  
At Resonance ◽  
Active Vibration

scholarly journals Active Vibration Control of Cantilever Beam by Using Optimal LQR Controller

2018 ◽  
Vol 24 (11) ◽  
pp. 1
Author(s):  
Hadeer Abd UL-Qader Mohammed ◽  
Hatem Rahem Wasmi
Keyword(s):  
Vibration Control ◽  
Cantilever Beam ◽  
Experimental Work ◽  
Active Vibration Control ◽  
Actuation Voltage ◽  
Smart Structure ◽  
Control Gain ◽  
Lqr Controller ◽  
Smart Beam ◽  
Active Vibration

Many of mechanical systems are exposed to undesired vibrations, so designing an active vibration control (AVC) system is important in engineering decisions to reduce this vibration. Smart structure technology is used for vibration reduction. Therefore, the cantilever beam is embedded by a piezoelectric (PZT) as an actuator. The optimal LQR controller is designed that reduce the vibration of the smart beam by using a PZT element.   In this study the main part is to change the length of the aluminum cantilever beam, so keep the control gains, the excitation, the actuation voltage, and mechanical properties of the aluminum beam for each length of the smart cantilever beam and observe the behavior and effect of changing the length of the smart cantilever beam. A cantilever beam with piezoelectric is modeled in Mechanical APDL ANSYS version 15.0 and verified this by using experimental work. The AVC was tested on a smart beam under different control gains in experimental work and chose the best control gain depending on FEM results for each length of the smart beam. The response of the smart beam is noticed to be different for every length and the reduction percentage for settling time was different for every length.  

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