Course Detail

 Course Name Helicopter Theory Course Code 19AEE433 Program B. Tech. in Aerospace Engineering Year Taught 2019

Syllabus

Unit 1

Historical development, configurations of helicopters, rotor system, flight control and mechanism, hovering theory, momentum theory for hover and vertical flight, blade element theory for hover and vertical flight, combined blade element momentum (BEM) theory.

Unit 2

Momentum theory for forward flight, various non-uniform inflow models, blade element theory for forward flight, non-dimensional hub forces and moments, estimation of power for forward flight.

Unit 3

Idealization of rotor blades, flap-lag and torsional dynamics of the blade, rotor blade flapping motion: A simple model, helicopter trim analysis.

Objectives and Outcomes

Course Objectives

• To make students to understand the fundamentals of helicopter (momentum and blade element) theory and apply these theories to hover and forward flight conditions.

Course Outcomes

• CO1: Estimate the performance of a helicopter using momentum theory.
• CO2: Understand the blade element theory for hover and vertical flight
• CO3: Understand the blade element momentum theory for forward flight.
• CO4: Analyse the blade response and trim condition of a helicopter rotor system.

CO – PO Mapping

 PO/PSO/ CO PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 PSO1 PSO2 PSO3 CO1 3 3 3 1 3 3 2 CO2 3 3 3 1 3 3 2 CO3 3 3 3 1 3 3 2 CO4 3 3 3 3 2 1 3 3 2

Textbook / References

Textbook(s)

• C. Venkatesan, “Fundamentals of helicopter dynamics,” CRC Press, 2015

Reference(s)

• W. Johnson, “Helicopter theory”, Princeton University, 1980.
• R. S. Bramwell, “Helicopter dynamics”, Edward Arnold Publications, 1976

Evaluation Pattern

 Assessment Internal External Periodical 1 (P1) 15 – Periodical 2 (P2) 15 – *Continuous Assessment (CA) 20 – End Semester – 50 *CA – Can be Quizzes, Assignment, Projects, and Reports.

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