Study Of The Aerodynamic And Structure Optimization Design For The Blade Of Electrically Controlled Rotor

The Electrically Controlled Rotor (ECR), or so-called Swashplateless Rotor, is a new conceptrotor system, and represents the developing direction of the future rotor system. In this dissertation, asynthetic optimization method is brought out, which includes optimization about the aerodynamicsand structure of the ECR. The main contents of this dissertation include as follow:(1) Mathematical model of airfoil with trailing-edge flap based on CST parametric modelingmethod is established. The mathematical model includes three parts: main airfoil model, trailing-edgeflap model, and slat shape of the airfoil model. Finally, the CAD modeling of airfoil with trailing-edgeflap based on CATIA secondary development is established.(2) The aerodynamics model of airfoil with trailing-edge flap based on CFD is established.Combination of the global optimization with surrogate model and local optimization are carried outfor the aerodynamics optimization of airfoil with trailing-edge flap. Finally, the optimization methodis validated by using Isight integrating the above analysis models and completing the wholeoptimization process.(3) First, the ECR aerodynamics analysis model is established based on moment-blade elementtheory, and then the ECR flutter analysis model is established based on classical flutter theory. Thesynthetic optimize method for both aerodynamics and structure optimization of ECR blade based onIsight and the above models is established. Finally, the synthetic optimize method is validated withthe example ECR system.