Journal ArticleDOI
Bending and torsion models of beams with induced-strain actuators
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In this paper, the authors developed one-dimensional pure bending, coupled bending and extension, and combined bending, extension and torsion models of isotropic beams with induced-strain actuation.Abstract:
This paper develops one-dimensional pure bending, coupled bending and extension, and combined bending, extension and torsion models of isotropic beams with induced-strain actuation. A finite thickness adhesive layer between the crystal and beam is included to incorporate shear lag effects. Experimental tests evaluate the accuracy and limitations of the models. The bending and coupled bending and extension models show acceptable correlation with static test results whereas the combined extension, bearing, torsion model predicts the system behavior poorly and needs refinement.read more
Citations
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Journal ArticleDOI
Non-linear piezoelectric vibration energy harvesting from a vertical cantilever beam with tip mass
Michael I. Friswell,S. Faruque Ali,Onur Bilgen,Sondipon Adhikari,Arthur W. Lees,Grzegorz Litak +5 more
TL;DR: In this article, the authors proposed a non-linear configuration of a cantilever beam with a tip mass that is mounted vertically and excited in the transverse direction at its base.
Journal ArticleDOI
Piezoelectric Active Sensor Self-Diagnostics Using Electrical Admittance Measurements
TL;DR: In this article, a piezoelectric sensor self-diagnostic procedure is proposed to track the changes in the capacitive value of piezolectric materials resulting from the degradation of the mechanical/electrical properties and its attachment to a host structure, which is manifested in the imaginary part of measured electrical admittances.
Journal ArticleDOI
Hover Testing of Smart Rotor with Induced-Strain Actuation of Blade Twist
Peter C. Chen,Inderjit Chopra +1 more
TL;DR: In this article, an Froude scale helicopter rotor model with embedded piezoceramic elements as actuators to suppress vibrations was used for a hover test with a one-eighth dynamically scaled rotor model.
Journal ArticleDOI
On a model of layered piezoelectric beams including transverse stress effect
TL;DR: In this paper, a Euler-Bernoulli-like model of layered piezoelectric beams is presented and a deductive approach based on a mixed variational formulation is adopted and distributions of deformation, stress, electric field and electric displacement are simultaneously prescribed.
References
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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.
Proceedings ArticleDOI
Detailed models of piezoceramic actuation of beams
TL;DR: In this paper, techniques for modeling induced strain actuation of beam-like components of intelligent structures are developed, including two analytical models and one numerical model describing the detailed mechanics of induced strain actuators bonded to and embedded in one-dimensional structures.
Book
Theory and analysis of flight structures
TL;DR: Theory and analysis of flight structures as discussed by the authors, theory and analysis for flight structures, Theory and Analysis of Flight Structures, Flight Structure Theory, and Flight Structure Analysis of flight structure.
Proceedings ArticleDOI
Use of piezo-ceramics as distributed actuators in large space structures
Edward F. Crawley,J. De Luis +1 more
Proceedings ArticleDOI
Development of Piezoelectric Technology for Applications in Control of Intelligent Structures
TL;DR: A model coupling the electrical and mechanical properties of the piezoelectric is presented, and this model is used to derive optimal resistive and tuned electrical circuits to maximize energy dissipation in the structure.
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Use of piezoelectric actuators as elements of intelligent structures
Edward F. Crawley,Javier de Luis +1 more