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Introduction to Helicopter Aerodynamics and Dynamics

Introduction to Helicopter Aerodynamics and Dynamics. Instructor: Prof. Dr. C. Venkatesan, Department of Aerospace Engineering, IIT Kanpur. This course introduces topics in helicopter aerodynamics and dynamics: Historical development, Rotor configuration, Elements of hovering, Vertical flight, Forward flight, Performance, Rotor blade idealization, Flap response, Trim and coupled flap lag torsion dynamics, and Introduction to certain stability problems. (from nptel.ac.in)

Lecture 07 - Ideal Rotor vs Optimum Rotor, Vertical Flight


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Lecture 01 - Introduction and Historical Development of Helicopters
Lecture 02 - Flight Control System, Rotor System
Lecture 03 - Actual Helicopter Model and the Various Functions of the Controls
Lecture 04 - Helicopter Configuration, Hovering Theory: Momentum Theory
Lecture 05 - Hovering Theory: Blade Element Theory
Lecture 06 - Combined Blade Element and Momentum Theories for Non-uniform Inflow Calculation
Lecture 07 - Ideal Rotor vs Optimum Rotor, Vertical Flight
Lecture 08 - Vertical Flight: Autorotation in Vertical Descent
Lecture 09 - Autorotation in Vertical Descent (cont.), Ground Effect, Forward Flight
Lecture 10 - Forward Flight: Momentum Theory
Lecture 11 - Forward Flight: Blade Motion
Lecture 12 - Forward Flight: Blade Motion (cont.)
Lecture 13 - Forward Flight: Hub Loads
Lecture 14 - Forward Flight: Power Variation with Forward Speed
Lecture 15 - Forward Flight: Blade Flapping Motion - Simple Model
Lecture 16 - Forward Flight: Blade Flapping Motion (cont.)
Lecture 17 - Forward Flight: Blade Flapping Motion (cont.)
Lecture 18 - Helicopter Trim and Stability
Lecture 19 - Equilibrium Condition of Helicopter
Lecture 20 - Introduction to Blade Dynamics
Lecture 21 - Blade Dynamics (Flap Equation), Lead Lag Dynamics
Lecture 22 - Lead Lag Dynamics (cont.), Isolated Torsional Dynamics
Lecture 23 - Isolated Torsional Dynamics (cont.), Coupled Flap-Lag Torsion Problem
Lecture 24 - Coupled Rotor-Fuselage Dynamics, Rotor Modes, etc.
Lecture 25 - Linear Time Varying System
Lecture 26 - Momentum Theory in Forward Flight