| The Effect of Composite Flexures on Aeroelastic Stability of a Hingeless Rotor Blade |
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| 摘 要： |
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The Effect of Composite Flexures on Aeroelastic Stability of a Hingeless Rotor Blade |
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| Authors: | Shi Qinghua |
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| Abstract: | The effects of ply orientation angle of composite flexures on stability of hingeless rotor blade system are studied.The composite hingeless rotor blade system is simplified as a hub,a flap flexure and a lag flexure.pitch bearing and main blade.The kinematics formulations are inferred by employing the moderate deflection beam theory.The shear deformation and warping related to torsion are considered.The quasi-steady strip theory with dynamic inflow effects is applied to obtain the aerodynamic loads acting on the blade.Based on these.the set of finite element formulations of a hingeless rotor blade system is worked out.The numerical results show that the ply angle of the composite flexures has great effects on the aeroelastic stability of rotor blade. |
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| Keywords: | Aeroelastic Stability Blade Composite Flexure beam Blade Rotor Stability Composite numerical results show angle finite element Based strip theory dynamic inflow acting shear deformation warping related torsion kinematics formulations deflection |
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