Wind Turbine Dynamics: Research in helicopter dynamics, rotorcraft aeromechanics, smart structures and micro air vehicles research programs at the Alfred Gessow Rotorcraft Center.

Dr. Chopra has been the principal investigator of seven major research programs:

1. Army's University Research Initiative (URI) (1992-97) on "Smart-Structures Technology: Innovations and Applications to Rotorcraft Systems"
2. Army's Multidisciplinary University Research Initiative (MURI) (1996-2001) on "Innovative Smart Technologies for Actively Controlled Jet-Smooth Rotorcraft"
3. Army/NASA's "Rotary-Wing Center of Excellence" (1982-2006) and
4. Army’s MURI (2004-09) on “Micro Hovering Air Vehicles: Revolutionary Concepts and Navigational Advancements.”
5. Army's CTA MAST (2008-18) on "Center for Microsystem Mechanics."
6. Army/Navy/NASA's Rotorcraft Program (2012-17) on "Vertical Lift Research Center of Excellence."
7. Navy's Rotorcraft Program (2010-12) on "Aeromechanics of Heavy Lift Rotorcraft."