Model Validation and Simulated Fatigue Load Alleviation of SNL Smart Rotor Experiment

摘要

In this paper an individual flap controller (IFC) design for smart rotors is presented and compared to the model identification of the Sandia National Labs Smart Rotor experiment. The controller design has been carried out using an in-house aeroservoe-lastic software - DU_SWAT. The root bending moment response due to a step input of the flap deflection has been linearized. Based on this linearization a Coleman transform combined with a proportionality controller has been used to eliminate the cyclic components in the root bending moment. It was shown that IFC can reduce the 1P mode similar to individual pitch control, while only modest flap deflections of below 5 degree are required.