Effect of Taper on Free Vibration of Functionally Graded Rotating Beam by Mori-Tanaka Method: Fid-Bau Portal

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Effect of Taper on Free Vibration of Functionally Graded Rotating Beam by Mori-Tanaka Method

Kumar, Pacharu Ravi / Rao, Koganti Mohana / Rao, Nalluri Mohan

Abstract Rotating beams are the practical application for aircraft propellers, helicopter blades, wind mill propeller, turbine blades and spinning space structures. In these structures, taper beams are preferred due to optimum weight distribution with uniform strength. Vibration behavior of tapered variable section beams subjected to centrifugal forces is important in analysis of structures. The research work deals with flapwise vibration of functionally graded (FG) rotating taper beam. The material properties of the beam change symmetrically in the direction of thickness from middle surface to the outer surfaces. Mori-Tanaka method estimates these properties of FG beam. The flapwise frequencies are obtained using Differential Transform Method (DTM). The effect of different parameters such as rotating speed, taper ratio, hub radius ratio and gradient index on flapwise frequency is discussed.

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Effect of Taper on Free Vibration of Functionally Graded Rotating Beam by Mori-Tanaka Method

Kumar, Pacharu Ravi / Rao, Koganti Mohana / Rao, Nalluri Mohan

Abstract Rotating beams are the practical application for aircraft propellers, helicopter blades, wind mill propeller, turbine blades and spinning space structures. In these structures, taper beams are preferred due to optimum weight distribution with uniform strength. Vibration behavior of tapered variable section beams subjected to centrifugal forces is important in analysis of structures. The research work deals with flapwise vibration of functionally graded (FG) rotating taper beam. The material properties of the beam change symmetrically in the direction of thickness from middle surface to the outer surfaces. Mori-Tanaka method estimates these properties of FG beam. The flapwise frequencies are obtained using Differential Transform Method (DTM). The effect of different parameters such as rotating speed, taper ratio, hub radius ratio and gradient index on flapwise frequency is discussed.

Effect of Taper on Free Vibration of Functionally Graded Rotating Beam by Mori-Tanaka Method

Kumar, Pacharu Ravi / Rao, Koganti Mohana / Rao, Nalluri Mohan

Abstract Rotating beams are the practical application for aircraft propellers, helicopter blades, wind mill propeller, turbine blades and spinning space structures. In these structures, taper beams are preferred due to optimum weight distribution with uniform strength. Vibration behavior of tapered variable section beams subjected to centrifugal forces is important in analysis of structures. The research work deals with flapwise vibration of functionally graded (FG) rotating taper beam. The material properties of the beam change symmetrically in the direction of thickness from middle surface to the outer surfaces. Mori-Tanaka method estimates these properties of FG beam. The flapwise frequencies are obtained using Differential Transform Method (DTM). The effect of different parameters such as rotating speed, taper ratio, hub radius ratio and gradient index on flapwise frequency is discussed.

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Title:

Effect of Taper on Free Vibration of Functionally Graded Rotating Beam by Mori-Tanaka Method

Contributors:

Kumar, Pacharu Ravi (author) / Rao, Koganti Mohana (author) / Rao, Nalluri Mohan (author)

Published in:

Journal of The Institution of Engineers (India): Series C ; 100 ; 729-736

Publication date:

2018-07-13

Size:

8 pages

ISSN:

2250-0553 , 2250-0545

DOI:

https://doi.org/10.1007/s40032-018-0477-z

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

FG material , Rotating taper beam , Differential transform method , Mori-Tanaka method , Flapwise vibration Engineering , Aerospace Technology and Astronautics , Mechanical Engineering , Industrial and Production Engineering

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