**Aerospace Engineering 6220:**

**Rotorcraft Dynamics
and Aeroelasticity**

**School of
Aerospace Engineering**

**Georgia Institute of Technology**

Profs. Dewey H. Hodges and J. V. R. Prasad

Prof. Hodges' Office: Weber 200-C; Phone: 404-894-8201

E-mail: dhodges@gatech.edu

Prof. Prasad's Office: Knight 421-A; Phone 404-894-3043

E-mail: jvr.prasad@ae.gatech.edu

** **

**Time and
place**: The class hours are 1:05-1:55
p.m., Mondays, Wednesdays, and Fridays. The place is Guggenheim 244.

**Text:** There
is no required text for the course. The following textbooks
contain a lot of relevant material and are references for the course content:

Bielawa, Richard L.: *Rotary
Wing Structural Dynamics and Aeroelasticity*, 2^{nd} edition, AIAA,
Reston, Virginia, 2006.

Bramwell, Anthony R.
S.; Done, George T. S.; Balmford, David: *Bramwell's** Helicopter
Dynamics*, 2^{nd} edition, Butterworth-Heinemann, Oxford, 2001.

Hodges, Dewey H.: *Nonlinear Composite Beam Theory*, AIAA, Reston, Virginia, 2006.

** **

Johnson, Wayne: *Helicopter Theory*, Princeton University
Press, Princeton, New Jersey, 1980 (also Dover
Publications, Inc., New York, 1994).

**Course
Goals:** To introduce students to the
fundamentals of rotorcraft dynamics and aeroelasticity, and to provide
necessary background to equip students to do additional research and analysis
in the field.

**Office hours:**

Prof. Hodges' Office hours: to be arranged

Prof. Prasad's Office hours: to be arranged

**Grading Policy:**

** **

Prof. Hodges' portion of the course: Homework counts as 100%. Discussion of homework solutions among students is permitted, but the work you turn in must be entirely your own.

Prof. Prasad's portion: Homework counts as 70%. Project counts as 30%. Discussion of homework and project among students is permitted, but the work you turn in must be your own.

**Syllabi:**

Prof. Hodges's portion (Jan. 7-Feb. 27, 2012)

Prof. Prasad's portion (Mar. 1-April 26, 2012): see Prof. Prasad's web page

**Homework
assignments: **Prof. Hodges's
problems:

Homeworks 1 and 2

Homework 3

For Prof. Prasad's problems, see his web page

**Handouts: **to
be posted on the web pages of Prof. Hodges or Prof. Prasad

Potential energy contribution to pitch-lag coupling terms

Handwritten flap-lag derivation

Flap-lag
perturbation (for pitch-lag coupling)

Discussion
of flap-lag stability

Nonlinear Theory for Composite Blades

Updated 1/3/2013