| In the present work, SMARTROTOR, a code for aeroelastic and aeroacoustic modeling of rotor blades, is developed. SMARTROTOR is created by interfacing aerodynamic, aeroacoustic, and structural dynamic components. The aerodynamic component is GENUVP, an existing unsteady panel code with a particle-wake model. The new aeroacoustic component, which is developed within the current work as an add-on to GENUVP, is based on a solution of the Ffowcs Williams-Hawkings equation for thickness and loading noise. The structural component is an existing non-linear beam element model of the rotor blades based on a mixed variational intrinsic formulation, with inclusion of the effects of integral twist actuation. The aerodynamic and structural components are interfaced to form a closely-coupled aeroelastic code that solves in the time-domain. Aerodynamic, hub vibration, aeroelastic deflection, and aeroacoustic validation results are presented for a model of the HELINOISE BO105 scale rotor. The current version of SMARTROTOR can be used for future investigation of the noise reduction capability of active twist rotor blades. |
