학술논문

Multiwalled Carbon Nanotube Film Composite for Active Vibration Control of Cantilevered Beam
Document Type
Periodical
Source
IEEE Sensors Journal IEEE Sensors J. Sensors Journal, IEEE. 19(7):2466-2473 Apr, 2019
Subject
Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Robotics and Control Systems
Capacitive sensors
Strain
Finite element analysis
Strain measurement
Structural beams
Actuators
MWCNT
AVC
PZT
FFT
gauge factor
Language
ISSN
1530-437X
1558-1748
2379-9153
Abstract
A novel scheme for active vibration control using MWCNT/epoxy strain sensor is analytically derived and experimentally verified. Mathematical model of smart cantilevered beam instrumented with collocated CNT strain sensor and PZT-5H actuator is derived. Fabrication process of CNT strain sensor and instrumentation of signal-conditioning unit is also detailed. Active vibration control (AVC) of the first mode of vibration of smart cantilevered beam instrumented with CNT stain sensor and PZT-5H actuator is conducted experimentally at ambient temperature. It is observed from experiments that the AVC scheme is realized by using negative first modal velocity feedback control law.