Active vibration control of plates using positive postion feedback control with PZT actuators
In this study, the active vibration control of clamped plates using a positive position feedback (PPF) controller with a sensor/moment pair actuator (non-collocation configuration) is considered. To identify the characteristics of the PPF control system, a numerical parametric studies
is conducted. The design parameters (gain and damping ratio) of the PPF controller are shown to have a significant effect on the stability and performance of the control system. Using these results, a multi-mode (first and second mode) single-input single-output (SISO) PPF controller is implemented.
Two PPF controllers are connected in parallel with the SISO configuration. The final designed multi-mode PPF controller showed good conditional stability and high performance. The vibration levels at the tuned modes are reduced by about 5 dB. Finally, the performance of the PPF controller
is experimentally verified. The disturbance levels at the target modes can be reduced by about 5 dB, nearly the same as the theoretical result.
Document Type: Research Article
Affiliations: Korea Institute of Ocean Science and Technology
Publication date: 01 March 2016
NCEJ is a peer reviewed Technical journal published every two months. The papers published in NCEJ cover general topics related to noise control engineering, ranging from fundamental research to applied case studies and histories.
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