International Journal of Research and Innovation (IJRI)
International Journal of Research and Innovation (IJRI) 1401-1402
COMPARISON OF ALUMINUM & COMPOSITE MATERIALS FOR SHIP PROPELLER USING FEA
D.Ravikumar 1*, K.Durga2, 1 Research Scholar, Department Of Mechanical Engineering, Vikas college of Engineering and Technology,Vijayawada rural,India 2 Assistant professor , Department Of Mechanical Engineering, Vikas college of Engineering and Technology,Vijayawada rural,India
Abstract Ships and underwater vehicles like submarine and torpedoes use propeller for propulsion. In general, propellers are used to develop significant thrust to propel the vehicle at its operational speed and RPM. The blade geometry and design are complex involving many controlling parameters. Propeller with conventional isotropic materials creates more vibration and noise in their operation. It is undesirable in stealth point of view. In the recent years the increased need for light weight structural element with acoustic insulation has led to the use of fiber reinforced multi layered composite propeller. The present work is aimed at the static and dynamic analysis of alluminium as well as composite propeller which is a combination of GFRP (Glass Fiber Reinforced Plastics) and CFRP (Carbon Fiber Reinforced Plastics) materials. Modeling and analyzing the propeller blade of a underwater vehicle for their strength are carried out in the present work. A propeller is a complex geometry and requires high end modeling in its software. The solid model of propeller is developed in CATIA V5 R17. HEXA mesh is generated for the model using HYPERMESH. Static, Eigen and frequency responses analysis of both alluminium and composite propeller are carried out in ANSYS. Inter laminar shear stresses are calculated for composite propeller by varying the number of layers. The stresses obtained are well within the limit of elastic property of the materials. The natural frequencies of composite propeller are found to be higher than that of alluminium propeller and the harmonic analysis of composite propeller are also better than that of alluminium propeller. *Corresponding Author: D.Ravikumar , Research Scholar, Department Of Mechanical Engineering, Vikas college of Engineering and Technology, Vijayawada rural,India Published: January 22, 2015 Review Type: peer reviewed Volume: II, Issue : I
Citation: D.Ravikumar, Research Scholar (2015) COMPARISON OF ALUMINUM & COMPOSITE MATERIALS FOR SHIP PROPELLER USING FEA
INTRODUCTION Motivation for the Project Ships and under water vehicles like submarines, torpedoes and submersibles etc., Uses propeller for propulsion. The blade geometry and its design is more complex involving many controlling parameters. The strength analysis of such complex 3d blades with conventional formulas will give less accurate values. In such cases numerical analysis (finite element analysis) gives comparable results with experimental values. In the present project the propeller blade material is converted from aluminum metal to fiber reinforced composite material for underwater vehicle propeller. Such complex analysis can be easily solved by finite element method techniques.
3-Bladed
4-Bladed
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