Piezoceramic Actuator Hysteresis

2015 ◽  
pp. 129-164
Author(s):  
Ranjan Ganguli ◽  
Dipali Thakkar ◽  
Sathyamangalam Ramanarayanan Viswamurthy
Keyword(s):  
Piezoceramic Actuator

Experimental Investigation of a Turbulent Jet Produced by an Oscillating Surface Actuator

1994 ◽  
Vol 47 (6S) ◽  
pp. S127-S131 ◽  
Author(s):  
R. D. James ◽  
J. W. Jacobs ◽  
A. Glezer
Keyword(s):  
Small Time ◽  
Turbulent Jet ◽  
Linear Functions ◽  
Periodic Excitation ◽  
Mean Flow ◽  
Piezoceramic Actuator ◽  
Mass Injection ◽  
The Mean ◽  
Time Periodic ◽  
Turbulent Water

A round turbulent water jet produced normal to, and at the center of a resonantly driven piezoceramic actuator is investigated experimentally. The flow is produced without mass injection and is comprised entirely of radially entrained fluid. The jet is created by the formation and disappearance of cavitation bubbles during each oscillation cycle near the actuator surface. It appears that this process produces a series of vortex puffs from radially entrained fluid which coalesce to form the jet. Although the jet results from strong time periodic excitation, its time averaged behavior in the far field is similar to that of a classical turbulent round jet in that the increase its width and decrease in the inverse of its centerline velocity are both linear functions of the distance from the actuator. The time periodic features of the jet are observed throughout the flow field and are superimposed on the mean flow. The transient characteristics of the jet have also been investigated and indicate that it can be manipulated on relatively small time scales suggesting that it may be utilized for control of wall bounded shear flows.

G101015 Development of Dynamic Preisach Modeling of hysteresis for the piezoceramic actuator

2013 ◽  
Vol 2013 (0) ◽  
pp. _G101015-1-_G101015-5
Author(s):  
Ikhwan Bin Khairul Jamil Muhammad ◽  
Fumitake FUJII
Keyword(s):  
Piezoceramic Actuator

Comprehensive piezoceramic actuator review

2002 ◽  
Author(s):  
Chris J. Taylor ◽  
Gregory N. Washington
Keyword(s):  
Piezoceramic Actuator

Position tracking control of an optical pick-up device using piezoceramic actuator

Mechatronics ◽  
2001 ◽  
Vol 11 (6) ◽  
pp. 691-705 ◽  
Author(s):  
S.B. Choi ◽  
H.K. Kim ◽  
S.C. Lim ◽  
Y.P. Park
Keyword(s):  
Tracking Control ◽  
Position Tracking ◽  
Piezoceramic Actuator ◽  
Position Tracking Control

Precision Control of a Piezoceramic Actuator Using Neural Networks

2004 ◽  
Vol 126 (1) ◽  
pp. 235-238 ◽  
Author(s):  
Ying-Shieh Kung ◽  
Rong-Fong Fung
Keyword(s):  
Neural Networks ◽  
Control Method ◽  
Controller Design ◽  
Dynamic Performance ◽  
Inverse Function ◽  
Preisach Model ◽  
Feedback Controllers ◽  
Piezoceramic Actuator ◽  
Hysteresis Nonlinearity ◽  
Feedforward Controller

In this paper, a control method combining the feedforward and feedback controllers is proposed to precisely control the dynamic performance of the piezoceramic actuator (PA). In the feedforward controller design, the hysteresis nonlinearity of the PA is modeled by using Preisach model first. Then a database of switching input/output values and a neural networks architecture treated as the inverse function of Preisach model are utilized in the feedforward controller. In the feedback controller design, a PI controller is used to regulate the output error. Finally, some experimental results are validated the excellent tracking performances of the proposed controller.

Active Control of Radiated Sound From a Vibrating Plate

2001 ◽  
Author(s):  
Jin-Seok Hong ◽  
Kihong Shin ◽  
Choong-Hwi Lee ◽  
Jae-Eung Oh
Keyword(s):  
Transfer Function ◽  
Active Control ◽  
Bending Moment ◽  
Harmonic Excitation ◽  
Lms Algorithm ◽  
Real Time Control ◽  
Linear Filters ◽  
Piezoceramic Actuator ◽  
Radiated Sound ◽  
Vibrating Plate

Abstract In this paper, an experimental study is described for active control of radiation sound from a vibrating plate under a harmonic excitation at a specific point. Two piezoceramic actuators are used to provide control inputs to the structure. The notion of control sensitivity of the plate bending moment is introduced to find the locations of piezoceramic actuators. Each piezoceramic actuator is located at the position that has the largest control sensitivity in order to maximize the control performance. The measurement sensors are two accelerometers whose outputs are processed through an array of linear filters. The impulse response of each filter is constructed from the vibro-acoustic path transfer function by accelerometers and microphones. The active structural acoustic control system is designed to estimate and reduce the radiated sound pressure on the basis of this transfer function. A 2 by 2 Filtered-x LMS algorithm is used, and is implemented on a TMS320C30 DSP board for the real-time control.

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