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Ihsan Küçükrendeci and Ömer K. Morgül Effect of elastic boundary conditions on free vibration of laminated composite plates, Scientific Research and Essays Vol. 6 (19), pp. 3949-3958, 8 September, 2011, Available online at http://www.academicjournals.org/SRE

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Article

Effect of Pretwist on Free Vibration Characteristics Determination of Metallic Curved Blade Replaced with Composite Material

1Department of Mechanical engineering, National Institute of Technology, Rourkela, India


Journal of Ocean Research. 2014, Vol. 2 No. 1, 11-16
DOI: 10.12691/jor-2-1-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
M.L. Pavan Kishore, R.K. Behera. Effect of Pretwist on Free Vibration Characteristics Determination of Metallic Curved Blade Replaced with Composite Material. Journal of Ocean Research. 2014; 2(1):11-16. doi: 10.12691/jor-2-1-3.

Correspondence to: M.L.  Pavan Kishore, Department of Mechanical engineering, National Institute of Technology, Rourkela, India. Email: kishore_cadacm @yahoo.com

Abstract

This paper addresses the effects of a pretwist on the behavior of curved blade. The blade is considered to be clamped at one end on the axis of rotation. The vibration analysis of pre-twisted blade is performed by using finite element method based solver Ansys. The effects of pretwist on the natural frequencies and mode shapes of metallic curved blade replaced with composite are investigated. The methodology used to determine the Eigen frequency characteristics are determined and the results emphasizing the influence played by the ply angle, pretwist and stacking sequence on the free vibration characteristics are presented and pertinent conclusions are outlined.

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