Volume No. 11 Issue No.: 2 Page No.: 382-391 October-December 2016
DESIGN AND COMPARATIVE STRESS ANALYSIS FOR A DOUBLE BLADED MARINE COMPOSITE PROPELLER
Majumder P.*, Pandey K. M. and Deshpande N.
Department of Mechanical Engineering, National Institute of Technology Silchar,Assam (INDIA)
Received on : January 10, 2016
Fibre reined force composite material are getting more preference in the production of the marine propeller in order to get better performance by escalating speed and payload of the underwater vehicle. Composite materials are replacing the position of normal conventional metallic material due to its light weight and high strength. In this present work stress distribution and deflection of the propeller blade of a double bladed propeller are observed for two separate composite materials. Here a static structural stress analysis have performed in ANSYS Workbench 14 software to find von mises stress and strain and corresponding deflection for two composite materials (carbon reined forced plastics i.e. CFRP and glass fibre reined forced plastics i.e. GFRP). Both the stress and deflection are compared for two composite materials. Besides that to find natural frequency and mode shape modal analysis also performed. From the result it can be concluded that stress developed in case of GFRP are lower than CFRP and maximum stress produce in the meeting part of propeller blade with the hub of the propeller. Similarly deflections are more in case of blade tip in GFRP than CFRP.
Keywords : Composite materials, CFRP, GFRP, Modal analysis, Static analysis