Analysis of Torsional Performance of Helicopter's Composite Material Stainless Laminated Strip
As the main load-bearing structure of the helicopter main rotor hub,stainless laminated strips bore the centrifugal force generated by the rotation of the blade and realized variable pitch of the blade through its own large deformation.The centrifugal force and torsional angle deformation carried by it change with the flight state of the helicopter.For the composite material stainless lami-nated strips,established the simulation model and solved the strain and angular deformation cloud diagram based on ABAQUS.Designed the static test bench to conduct verification test to verify the simulation model,and further analyzed the influence of centrifugal force and torsional angle on its torsional performance.The results showed that,the torsional stiffness of composite material stainless laminated strips decrease with the increase of the torsion angle and increase with the increase of the centrifugal force.The centrifugal force had a greater influence on the torsional stiffness of composite material stainless laminated strips.
composite material stainless laminated stripsstatic testcentrifugal forcetorsional an-gletorsional performance
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