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Optimization of Composite Couplings in Helicopter Rotor Blade Spar Using Hybrid Particle Swarm-Gradient Algorithm

Journal Name:

  • Bilge International Journal of Science And Technology Research

Publication Year:

  • 2017

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
Modern helicopter rotor blades are made of advanced composite material due to higher stiffness/mass ratio, superior fatigue characteristic along with capability of aeroelastic tailoring. In composite materials, circumferentially uniform stiffness (CUS) and circumferentially asymmetric stiffness (CAS) layup configurations, which offer convenience in terms of production methods, are widely used in the design of fiber angles. However, the purpose of this study is to test the possibility of achieving better results with an active modification without CUS and CAS distributions. When the gradian based classical methods are tested, the results are the same as the CUS and CAS distributions. It is a fact that gradient-based optimization algorithms were quite popular in the years when computers had not been so powerful yet. Furthermore, the hybrid particle swarm-gradient algorithm by means of C#, VABS, Abaqus, MATLAB proposes better results on the composite couplings of blade spar such as extension torsion, lead-lag torsion and flap torsion.
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