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Analysis of the dynamical behavior of piezoceramic actuators using piezoelectric isogeometric finite elements

Willberg, Christian (2016) Analysis of the dynamical behavior of piezoceramic actuators using piezoelectric isogeometric finite elements. Advances in Computational Design, 1 (1), pp. 37-60. Techno-Press. doi: 10.12989/acd.2016.1.1.000. ISSN 2383-8477.

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Official URL: http://techno-press.org/?page=container&journal=acd&volume=1&num=1


In this paper an electromechanically coupled isogeometric finite element is utilized to analyse Lamb wave excitation with piezoceramic actuators. An effective actuator design reduces the energy needed for Lamb wave excitation, which is beneficial if a structural health monitoring system should be applied for a structure. For a better understanding of the actuator behavior the piezoeceramics are studied both free and bonded at a structure. The numerical part of the analysis is performed utilizing isogeometric finite elements. To obtain the optimal performance for the numerical analysis the effect of k-refinement of the isogeometric element with respect to the convergence is studied and discussed. The optimal numerical setup with the best convergence rate is proposed and is validated with free piezoeceramic actuators. The validated model is then utilized to study the impact of actuator shape and adhesive bondline effect to the wave amplitude. The study shows that simplified analytical equations do not predict the optimal excitation frequencies for all piezoceramic designs accurately.

Item URL in elib:https://elib.dlr.de/101564/
Document Type:Article
Title:Analysis of the dynamical behavior of piezoceramic actuators using piezoelectric isogeometric finite elements
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Willberg, ChristianFA-STMUNSPECIFIED
Journal or Publication Title:Advances in Computational Design
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.12989/acd.2016.1.1.000
Page Range:pp. 37-60
EditorsEmailEditor's ORCID iD
Kang, ThomasDept. of Architecture & Architectural Engineering College of Engineering Seoul Natl. Univ., Sout KoreaUNSPECIFIED
Kapania, Rakesh KumarVirginia Polytechnic Institute and State Univ., USAUNSPECIFIED
Sapidis, Nickolas S.Dept. of Mechanical Engineering, Univ. of Western Macedonia, Kozani, GreeceUNSPECIFIED
Keywords:FEM; isogeometric analysis; piezoelectric; smart structures
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old), L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Willberg, Dr.-Ing. Christian
Deposited On:14 Jan 2016 10:26
Last Modified:14 Dec 2019 04:23

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