1.

Conference Proceedings
Conference Proceedings
1. Rotary-wing aeroelastic scaling and its implications for adaptive-materials-based actuation
Friedmann, P. P.
Pub. info.: Smart structures and materials 1999 : smart structures and integrated systems : 1-4 March, 1999 Newport Beach, California.  pp.60-79,  1999.  Bellingham, Wash..  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 3668
2.

Technical Paper
Technical Paper
2. Vibration reduction in helicopter rotors using an actively controlled partial span trailing edge flap located on the blade
Millott, T. A. ; Friedmann, P. P.
Pub. info.: NASA Technical Reports.  (NASA-CR-4611),  pp.1-420,  1994.  National Aeronautics and Space Adminstration
3.

Technical Paper
Technical Paper
3. Aeroelasticity and structural optimization of composite helicopter rotor blades with swept tips
Yuan, K. A. ; Friedmann, P. P.
Pub. info.: NASA Technical Reports.  (NASA-CR-4665),  pp.1-433,  1995.  National Aeronautics and Space Adminstration