Journal ArticleDOI
Dither-motor design with concurrent sensing and actuating piezoelectric materials (Ring laser gyroscope)
Shih-Ming Yang,J. S. Chui +1 more
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TLDR
In this paper, the authors present an analytical model to predict the model parameters of a dither-motor structure in a ring laser gyroscope in which the piezoelectric sensor and actuator are employed as driving mechanisms to avoid the problem of so-called lock-in effects.Abstract:
The authors present an analytical model to predict the model parameters of a dither-motor structure in a ring laser gyroscope in which the piezoelectric sensor and actuator are employed as driving mechanisms to avoid the problem of so-called lock-in effects It is shown that the natural frequency of a dither motor is strongly influenced by: (1) the inertia and stiffness of piezoelectric elements and bonding layers, (2) the location of piezoelectric elements, and (3) the interaction between structural vibration and piezoelectric actuation Conventionally piezoelectric elements are used for sensor and actuator independently A technique for utilizing each of the piezoelectric elements concurrently for dither rate sensing and dither motion actuation is also developed Experimental results show that the system performance and reliability can be significantly increased by accurately predicting the fundamental structural frequency and by implementing the concurrent sensing/actuating techniqueread more
Citations
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Journal ArticleDOI
Interaction of structure vibration and piezoelectric actuation
TL;DR: In this paper, a step-beam model is developed to predict the frequency and mode shape at different piezoelectric sensor/actuator locations in a closed-circuit condition.
Journal ArticleDOI
Mathematical modeling of actively controlled piezo smart structures: a review
TL;DR: In this article, a review paper on mathematical modeling of actively controlled piezo smart structures is presented, which discusses the techniques to: (i) write the equations of motion (ii) implement sensor-actuator design (iii) model real life environmental effects and, (iv) control structural vibrations.
Journal ArticleDOI
Structural vibration suppression by concurrent piezoelectric sensor and actuator
Shih-Ming Yang,C A Jeng +1 more
TL;DR: In this paper, an electromechanical model is developed to predict the natural frequencies of a structural system with a piezoelectric sensor and actuator, and a generalized stiffness is induced in the closed-circuit condition.
Proceedings ArticleDOI
Self-Sensing Compounding Control of Piezoceramic Micro-Motion Worktable Based on Integrator
TL;DR: In this article, a displacement self-sensing method of piezoceramic actuator based on integrator is presented, where the free charges on the wafers of actuator contain displacement information.
Journal ArticleDOI
Parametric design of mechanical dither with bimorph piezoelectric actuator for ring laser gyroscope
Xudong Yu,Xingwu Long +1 more
TL;DR: In this paper, a mathematical model and a finite element model were used to investigate the model parameters of me- chanical dither in a ring laser gyroscope in which the bimorph piezoelectric actuator are employed as driving mechanisms to avoid the problem of so-called lock-in effects.
References
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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.
Book
Linear Piezoelectric Plate Vibrations: Elements of the Linear Theory of Piezoelectricity and the Vibrations Piezoelectric Plates
TL;DR: Linear piezoelectric plate vibrations: elements of the linear theory of piezolectricity and the vibrations of piezelectric plates are discussed in this paper.
Journal ArticleDOI
Passive ring resonator method for sensitive inertial rotation measurements in geophysics and relativity
TL;DR: The problems encountered in the present apparatus, as well as those that are critical in the development of much larger esonators for geophysics and relativity applications, are discussed.
Self-sensing piezoelectric actuation - Analysis and application to controlled structures
TL;DR: In this paper, a self-sensing piezoelectric actuator is implemented using an active PDE strut in a truss structure, and the sensitivity of the results to representative errors introduced in the implementation of the transducer is demonstrated analytically and experimentally.
Journal ArticleDOI
Smart structures — vibration of composites with piezoelectric materials
S.M. Yang,J.W. Chiu +1 more
TL;DR: In this article, a manufacturing technique for embedding piezoelectric material in composite laminates while maintaining the structure strength and the material's effectiveness was developed, and an ultrasonic C-scan test was applied to screen out the specimen with possible delamination along the interface of the pieziolectric materials and glass fiber layer.
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Structural vibration suppression by concurrent piezoelectric sensor and actuator
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