Design/Modeling of Helicopter Rotary Blade and Its Analysis.

Abstract

Structural Problems are a major hazard and limitation for a Helicopter rotor blade, the main aim of the project is to reduce structural problems (Stresses) in Helicopter rotor blade. Composite materials are mainly used in the aerospace industry why because they have high strength-to-weight ratios. Military aircraft, including Navy aircraft, are constructed using considerable amounts of composites. Present paper proposes a methodology to model a propeller with a metal and composite material to analyze its strength and deformation using Finite Element Analysis.

  In order to evaluate the effectiveness of composite over metals, stress analysis is performed on both composite and metal propeller. Proposed methodology showed substantial improvements in metal propellers. The mean deflection, normal stress and shear stress were found for both metallic and composite propeller were found and compared. Here fatigue and Dynamic analysis is also carried out along with structural analysis and compared the results with the composite materials.