NDLI: Optimum Placement of Piezoelectric Ceramic Modules for Vibration Suppression of Highly Constrained Structures

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Belloli, Alberto Thomaschewski, Oliver Ermanni, Paolo
Copyright Year	2005
Abstract	The vibration suppression efficiency of so-called shunted piezoelectric systems is decisively influenced by the number, shape, dimension, and position of the implemented piezoelectric ceramic elements. This paper presents a procedure based on evolutionary algorithms for optimum placement of piezoelectric ceramic modules on real-world, highly constrained lightweight structures. The optimization loop includes the CAD software CATIA V5, the FE package ANSYS and DynOPS, a proprietary software tool able to connect the Evolving Object library with any simulation software that can be started in batch-mode. A user-defined piezoelectric shell element is integrated into ANSYS 8.1. Modal generalized electromechanical coupling coefficients are used as optimization objective and constraints. Position, dimension and shape of commercial, customized and free-form patches are determined for optimum multi-mode vibration suppression of a pinned, quadratic plate. An aircraft fuselage panel with a window cutout is investigated as test object for complex, curved geometries.
Sponsorship	Design Engineering Division and Computers and Information in Engineering Division
Starting Page	2289
Ending Page	2298
Page Count	10
File Format	PDF
ISBN	0791847381
DOI	10.1115/DETC2005-84614
e-ISBN	0791837661
Volume Number	Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C
Conference Proceedings	ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2005-09-24
Publisher Place	Long Beach, California, USA
Access Restriction	Subscribed
Subject Keyword	Piezoelectrics Vibration suppression Optimum placement Evolutionary algorithms Passive shunt damping Piezoelectric ceramics
Content Type	Text
Resource Type	Article

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