Coupled Rotor/Fuselage Vibration Analysis for Teetering Rotor and Test Data Comparison

摘要

A comprehensive vibration analysis of a coupled rotor/fuselage system for a two-bladed teetering rotor using finite element methods in space and time is developed that incorporates consistent rotor/fuselage structural, aerodynamic, and inertial couplings and a modern free-wake model. Coupled nonlinear periodic blade and fuselage equations are transformed to the modal space and solved simultaneously.