Mode shapes variation of a composite beam with piezoelectric patches

Georgiades, Fotios and Latalski, Jaroslaw and Warminski, Jerzy (2011) Mode shapes variation of a composite beam with piezoelectric patches. Transaction of Aviation Institute / Prace- Instytut Lotnictwa, 218 . pp. 36-43. ISSN 0509-6669

Full content URL: http://ilot.edu.pl/PIL/PIL_218.pdf

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Abstract

In this paper the modal shapes of a light, thin laminate beam with active elements were evaluated. Cases with one or two Macro Fiber Composite (MFC) active elements adhered onto a glass-epoxy cantilever beam were analyzed. The systems under consideration were modeled in ABAQUS finite element software to derive mode shapes numerically. Next, the modes were compared to each other to estimate the influence of PZT patches. First 20 modes of natural vibrations were examined including bending, torsion and axial ones. The comparisons of mode shapes were performed according to Modal Assurance Criterion (MAC) analysis. The examination of changes of mode shapes of the original beam with placement of active elements is the starting point in prior of optimal placements of PZTs with final goal the control of dynamics of helicopter blades.

Keywords:Modal analysis, Georgiadis
Subjects:H Engineering > H142 Solid Mechanics
H Engineering > H310 Dynamics
H Engineering > H210 Structural Engineering
H Engineering > H143 Structural Mechanics
H Engineering > H342 Vibration
H Engineering > H140 Mechanics
H Engineering > H300 Mechanical Engineering
Divisions:College of Science > School of Engineering
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ID Code:9477
Deposited On:11 Jul 2013 15:22

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