Beschreibung:
This is an introductory book on helicopter dynamics. The aim of this book is to introduce the students/engineers to the basic principles of helicopter dynamics. The book focuses on three major topics: (i) rotor blade idealization and blade dynamics in flap, lag, and torsion modes; (ii) rotor blade aeroelastic stability (coupled flap-lag and coupled flap-torsion); (iii) coupled rotor-fuselage dynamics. It covers hover, forward flight, and other maneuver flights. Starting from basic physics of rotating systems, the equations of motion have been derived in vector form.
Historical Development of Helicopters and Overview. Introduction to Hovering and Vertical Flight Theory. Introduction to Forward Flight Theory. Rotor Blade Flapping Motion: Simple Model. Helicopter Trim (or Equilibrium) Analysis. Isolated Rotor Blade Dynamics. Rotor Blade Aeroelastic Stability: Coupled Mode Dynamics. Coupled Rotor-Fuselage Dynamics: Rotor Modes. Flap Dynamics under General Hub Motion. Helicopter Stability and Control. Ground Resonance-Aeromechanical Instability: A simple model. Bibliography.