Course objective

In recent years, various types of rotorcraft have renewed interests due to increasing utility of small UAVS (drone). This course will provide an overview of rotorcraft history and diverse technical issues related with flight principles, aerodynamic performance anslysis, rotorcraft dynamics and configuration design. Additionally, it also intends to deliver a basic understanding of fundamental theory required for the performance analyses of other types of rotorcraft such as quadcopter, ducted fan and tilt rotor.

Texts and References

1. handout-이관중-서울대학교-2015
2. Introduction to V/STOL Airplanes-David L. Kohlman-Iowa State University Press-1981
3. Principles of Helicopter Aerodynamics-J. Gordon Leishman-Cambridge Press-2006
4. The Art of the Helicopter-John Watkinson-Elsvier-2004

Course outline

[ 1 Week ]
A Brief History of Helicopter Flight
[ 2 Week ]
Introduction to Rotorcraft : Types of rotorcraft, Configurations, Essential elements (rotors, control, electrical and hydraulic system etc.)
[ 3 Week ]
Fundamentals of Rotor Aerodynamics : Momentum Theory – Hovering
[ 4 Week ]
Fundamentals of Rotor Aerodynamics : Momentum Theory – Axial Flight
[ 5 Week ]
Fundamentals of Rotor Aerodynamics : Momentum Theory – Forward Flight
[ 6 Week ]
Blade Element Analysis – Hovering and Axial Flight
[ 7 Week ]
Blade Element and Momentum Theory (BEMT)
[ 8 Week ]
Blade Element Analysis – Forward Flight

<Mid-term Exam.>

[ 9 Week ]
Rotorcraft Performance - Hovering
[ 10 Week ]
Rotorcraft Performance - Forward Flight
[ 11 Week ]
Design Issues – Design of Rotor Configuration
[ 12 Week ]
Design Issues – Fuselage / Empannage
[ 13 Week ]
Rotors in Practice - Dynamic motion / Hinges/ Blade Tracking/ Ground Resonance
[ 14 Week ]
Other Types of Rotorcraft - gyroplane / winged helicopter / multi-rotor
[ 15 Week ]
Other Types of Rotorcraft - side-by-side helicopter/ synchropter/ ducted-fan/tandem

<Final Exam.>