Journal
MECCANICA
Volume 47, Issue 8, Pages 1945-1960Publisher
SPRINGER
DOI: 10.1007/s11012-012-9566-x
Keywords
Vibration analysis; Rotating beam; Electrorheological fluid; Functionally graded material
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Vibration properties of a rotating Functionally Graded Electro-Rheological (FGER) beam are investigated. In the composition of three layered beam, an electrorheological fluid layer is embedded between two functionally graded material layers. Classical beam theory is applied in the analysis of Functionally Graded Material (FGM) layers. Using Hamilton's principle and finite element method (FEM), equations of motion of the FGER beam are derived. The effects of various parameters such as FGM volume fraction index, rotating speed, thickness of the viscoelastic core and electric field on the resonant frequencies and modal loss factors are studied. The results quantify the significant effect of the FGM distribution and the ER core on the vibration suppression of the rotating composite beam.
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