Modeling, Static and Dynamic Analysis of Marine Propeller Blade by Using Composite Material

K.Sai Surya Teja, K.Lalit Narayana


Propeller is subjected to an external hydrostatic pressure on either side of the blades depending on the operating depth and flow around the propeller also result in differential hydrodynamic pressure between face and back surfaces of blades. The propeller blade is modeled such that it can with stand the static load distribution and finding the stresses and deflections for STAINLESS STEEL ,CFRP and GFRP materials. CFRP and GFRP composites are finding wide spread use in naval applications in recent times. Ships and under water vehicles like torpedoes Submarines etc. Torpedoes which are designed for moderate and deeper depths require minimization of structural weight for increasing payload, performance/speed and operating range for that purpose composite materials are casting is used for the fabrication of propeller blades. In current years the increased need for the light weight structural element with acoustic insulation, has led to use of composite propeller. The present work carries out the structural analysis and dynamic to STAINLESS STEEL, CFRP   and GFRP propeller blade which proposed to replace the propeller blade to find the better results.

This work basically deals with the modeling and design analysis of the propeller blade of a torpedo for its strength. A propeller is complex 3D model


geometry. This requires high end modeling CATIA software is used for generating the blade model. This report consists of brief details about composite materials and the advantages of using composite propeller over the conventional metallic propeller. By using ANSYS software modal analysis and static structural analysis were carried out for STAINLESS STEEL, CFRP and GFRP (composite material).

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