준정상 공력이론을 이용한 2자유도계 로터-낫셀 시스템의 훨플러터 해석

Whirl Flutter Analysis of a 2-DOF Rotor-Nacelle System Using Quasisteady Aerodynamic Theory

In this study, simplified whirl flutter analyses using quasisteady aerodynamic theory have been performed for a 2-DOF tilt-rotor system with both pitch and yaw motions of a rotor-nacelle. The present dynamic system consists of the rotor (propeller), forming the gyroscopic and aerodynamic element, supported horizontally by a pylon that is pivoted at some wing attachment point. Several design parameters (or rotor-nacelle system are considered and the effect of whirl flutter stability are also investigated for various design parameters.