Journal ArticleDOI
Distributed Piezoelectric-Polymer Active Vibration Control of a Cantilever Beam
Thomas Bailey,James E. Hubbard +1 more
TLDR
In this article, an active vibration damper for a cantilever beam was designed using a distributed-parameter actuator and distributedparameter control theory, and preliminary testing of the damper was performed on the first mode of the beam.Abstract:
An active vibration damper for a cantilever beam was designed using a distributed-parameter actuator and distributed-parameter control theory. The distributed-parameter actuator was a piezoelectric polymer, poly (vinylidene fluoride). Lyapunov's second method for distributed-parameter systems was used to design a control algorithm for the damper. If the angular velocity of the tip of the beam is known, all modes of the beam can be controlled simultaneously. Preliminary testing of the damper was performed on the first mode of the cantilever beam. A linear constant-gain controller and a nonlinear constant-amplitude controller were compared. The baseline loss factor of the first mode was 0.003 for large-amplitude vibrations (± 2 cm tip displacement) decreasing to 0.001 for small vibrations (±0.5 mm tip displacement). The constant-gain controller provided more than a factor of two increase in the modal damping with a feedback voltage limit of 200 V rms. With the same voltage limit, the constant-amplitude controller achieved the same damping as the constant-gain controller for large vibrations, but increased the modal loss factor by more than an order of magnitude to at least 0.040 for small vibration levels.read more
Citations
More filters
Journal ArticleDOI
Use of piezoelectric actuators as elements of intelligent structures
Edward F. Crawley,Javier de Luis +1 more
TL;DR: In this paper, a scaling analysis is performed to demonstrate that the effectiveness of actuators is independent of the size of the structure and evaluate various piezoelectric materials based on their effectiveness in transmitting strain to the substructure.
Journal ArticleDOI
Structural control: past, present, and future
George W. Housner,Lawrence A. Bergman,Thomas K. Caughey,Anastasios Chassiakos,R. O. Claus,Sami F. Masri,Robert E. Skelton,T. T. Soong,Billie F. Spencer,J. T. P. Yao +9 more
TL;DR: In this paper, the authors provide a concise point of departure for researchers and practitioners alike wishing to assess the current state of the art in the control and monitoring of civil engineering structures, and provide a link between structural control and other fields of control theory.
Journal ArticleDOI
Damping of structural vibrations with piezoelectric materials and passive electrical networks
TL;DR: In this paper, the authors investigated the possibility of dissipating mechanical energy with piezoelectric material shunted with passive electrical circuits, and derived the effective mechanical impedance for the piezolectric element shunted by an arbitrary circuit.
Journal ArticleDOI
A Self-Sensing Piezoelectric Actuator for Collocated Control:
TL;DR: In this paper, a technique has been developed which allows a single piece of piezoelec tric material to concurrently sense and actuate in a closed-loop system.
References
More filters
Journal ArticleDOI
Feedback control of flexible systems
TL;DR: In this paper, a feedback controller is developed for a finite number of modes of the flexible system and the controllability and observability conditions necessary for successful operation are displayed, and the combined effect of control and observation spillover is shown to lead to potential instabilities in the closed-loop system.
Journal ArticleDOI
Control System Analysis and Design Via the “Second Method” of Lyapunov: I—Continuous-Time Systems
R. E. Kalman,J. E. Bertram +1 more
Book
Some Aspects of the Optimal Control of Distributed Parameter Systems
TL;DR: A Zener diode, a voltage dropping resistor, and a first transistor are connected in series across a primary d-c source to form a regulation circuit.
Related Papers (5)
Use of piezoelectric actuators as elements of intelligent structures
Edward F. Crawley,Javier de Luis +1 more
Distributed piezoelectric sensor/actuator design for dynamic measurement/control of distributed parameter systems: A piezoelectric finite element approach
Horn-Sen Tzou,C.I. Tseng +1 more