Finite Element Analysis for Bearingless Rotor Blade Aeroelasticity

摘要: A conventional articulated rotor blade has mechanical flap and lag hinges, a damper, pitch bearing. In connection with an interest in designs of greater simplicity increased maintainability, hingeless bearingless rotors have been developed. lacks the hinges is cantilevered at hub. It does bearing for control. design eliminates as well. present investigation characteristics, finite element analysis successfully applied to determine solutions nonlinear trim equations linearized flutter multiple-load-path blades. The employed formulation based on Hamilton's principle. spatial dependence motion discretized by dividing flexbeams, torque tube, outboard into number elements.