By S. O. Reza Moheimani PhD, Andrew J. Fleming PhD (auth.)

ISBN-10: 1846283310

ISBN-13: 9781846283314

ISBN-10: 1846283329

ISBN-13: 9781846283321

Flexible mechanical platforms event bad vibration based on environmental and operational forces. The very lifestyles of vibrations can restrict the accuracy of delicate tools or reason major mistakes in purposes the place high-precision positioning is vital so in lots of occasions regulate of vibrations is a necessity.

Piezoelectric transducers were utilized in numerous purposes as sensors, actuators, or either. whilst conventional passive vibration keep an eye on options fail to fulfill requisites, piezoelectric transducers together with suggestions controllers can be utilized successfully to suppress vibrations.

Piezoelectric Transducers for Vibration keep watch over and Damping provides fresh advancements in vibration keep an eye on platforms that hire embedded piezoelectric sensors and actuators. specifically, it covers numerous ways that energetic vibration keep watch over platforms may be designed for piezoelectric laminated buildings, paying certain consciousness to how such keep an eye on structures could be applied in genuine time. The textual content includes a number of examples and experimental effects bought from laboratory-scale equipment, with information of ways related setups could be equipped.

Features and topics:

• an summary of piezoelectricity.

• Modelling of versatile constructions with embedded piezoelectric sensors and actuators.

• suggestions keep an eye on of structural vibration utilizing PPF and resonant controllers.

• A complete therapy of piezoelectric shunt damping structures utilizing systems-theoretic tools.

• A paradigm for designing lively high-performance piezoelectric shunts.

• leading edge options to accommodate the matter of hysteresis in piezoelectric transducers.

• Instrumentation for piezoelectric sensors and actuators.

• functions in atomic strength and scanning tunneling microscopy.

An crucial textual content and reference for graduates, researchers, and pros operating in mechanical engineering, aerospace engineering and mechatronics disciplines, this publication may be a specifically resource for scientists and engineers engaged in vibration keep an eye on research.

Advances in business Control goals to file and inspire the move of expertise up to speed engineering. The swift improvement of keep an eye on expertise has an influence on all components of the keep an eye on self-discipline. The sequence deals a chance for researchers to offer a longer exposition of recent paintings in all points of business control.

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Additional info for Piezoelectric Transducers for Vibration Control and Damping

Example text

One approach to solving this PDE is based on using the modal analysis approach [130]. In this technique the solution of the PDE is assumed to be of the form ∞ z(x, t) = wk (x)qk (t). e. 1, k = p 0, otherwise δkp = A solution to the eigenvalue problem requires precise knowledge of boundary conditions. g. simply-supported and cantilevered, mode shapes and resonance frequencies can be determined analytically from the eigenvalue problem. For further details, the reader is referred to [130] and [50].

23) do not include the effect of the second piezoelectric actuator. 17). The collocated situation is often used in vibration control applications, in which one piezoelectric transducer is used as an actuator while the other one is used as a sensor. This configuration is appealing for feedback control applications for reasons that will be explained in Chapter 3. 8 Piezoelectric 2D Actuation This section is concerned with the use of piezoelectric actuators for excitation of two-dimensional structures, such as plates in pure bending.

The assumption that all piezoelectric transducers are identical is only adopted to simplify the derivations, and can be removed if necessary. The ith actuator is exposed to a voltage of vai (t) and the voltage induced in the ith sensor is vpi (t). We assume that the beam has a length of L, width of W , and thickness of tb . Corresponding dimensions of each piezoelectric transducer are Lp , Wp , and tp . Furthermore, we denote the transverse deflection of the beam at point x and time t by z(x, t).

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Piezoelectric Transducers for Vibration Control and Damping by S. O. Reza Moheimani PhD, Andrew J. Fleming PhD (auth.)


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