Polyvinylidene fluoride film sensors in collocated feedback structural control: Application for suppressing impact-induced disturbances
Journal
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Journal Volume
58
Journal Issue
12
Start Page
2539
End Page
2554
ISSN
08853010
15258955
Date Issued
2011
Author(s)
Abstract
Polyvinylidene fluoride (PVDF) films are light, flexible, and have high piezoelectricity. Because of these advantages, they have been widely used as sensors in applications such as underwater investigation, nondestructive damage detection, robotics, and active vibration suppression. PVDF sensors are especially preferred over conventional strain gauges in active vibration control because the PVDF sensors are easy to cut into different sizes or shapes as piezoelectric actuators and they can then be placed as collocated pairs. In this work, to focus on demonstrating the dynamic sensing performance of the PVDF film sensor, we revisit the active vibration control problem of a cantilever beam using a collocated lead zirconate titanate (PZT) actuator/PVDF film sensor pair. Before applying active vibration control, the measurement characteristics of the PVDF film sensor are studied by simultaneous comparison with a strain gauge. The loading effect of the piezoelectric actuator on the cantilever beam is also investigated in this paper. Finally, four simple, robust active vibration controllers are employed with the collocated PZT/PVDF pair to suppress vibration of the cantilever beam subjected to impact loadings. The four controllers are the velocity feedback controller, the integral resonant controller (IRC), the resonant controller, and the positive position feedback (PPF) controller. Suppression of impact disturbances is especially suitable for the purpose of demonstrating the dynamic sensing performance of the PVDF sensor. The experimental results also provide suggestions for choosing between the previously mentioned controllers, which have been proven to be effective in suppressing impact-induced vibrations.
Subjects
Polyvinylidene Fluoride
Membranes, Artificial
Polyvinyls
Polyvinylidene Fluoride
Active Vibration
Active Vibration Controls
Active Vibration Suppression
Different Sizes
Dynamic Sensing
Impact Loadings
Lead Zirconate Titanate Actuators
Loading Effects
Measurement Characteristics
Non Destructive
Polyvinylidene Fluoride Film Sensors
Polyvinylidene Fluorides
Positive Position Feedback
Pvdf Films
Pvdf Sensor
Pzt
Resonant Controller
Strain Gauge
Structural Control
Suppress Vibration
Velocity Feedback
Cantilever Beams
Controllers
Crystallography
Damage Detection
Loading
Piezoelectric Actuators
Semiconducting Lead Compounds
Strain Gages
Structural Dynamics
Vibration Control
Sensors
Polyvinyl Derivative
Polyvinylidene Fluoride
Article
Artificial Membrane
Chemistry
Equipment
Equipment Design
Equipment Failure
Feedback System
Mechanical Stress
Microelectromechanical System
Transducer
Equipment Design
Equipment Failure Analysis
Feedback
Membranes, Artificial
Micro-electrical-mechanical Systems
Polyvinyls
Stress, Mechanical
Transducers
Type
journal article