Peretz P. Friedmann Francois-Xavier Bagnoud Professor ADDRESS: 3001 FXB PHONE: (734)763-2354 EMAIL: peretzf@umich.edu Website: FXB Center for Rotary and Fixed Wing Air Vehicle Design

Peretz P. Friedmann is currently the François-Xavier Bagnoud Professor in the Aerospace Engineering Department at the University of Michigan , Ann Arbor . He is also the Director of the FXB Center for Rotary and Fixed Wing Air Vehicle Design, and the Associate Director of the Vertical Lift Research Center of Excellence (VLRCOE) which is a partnership between Georgia Tech (lead university), University of Michigan , Washington University in St. Louis and Utah State University .

He received his B.S. and M.S. degrees in Aeronautical Engineering from the Technion, Israel and his Sc. D. (1972) in Aeronautics and Astronautics from the Massachusetts Institute of Technology. Prior to entering the academic world, Dr. Friedmann was an engineering officer in the Israeli Air Force, a Senior Engineer at Israel Aircraft Industries, and a Research Assistant at the Aeroelastic and Structures Laboratory at MIT. He has been with the University of Michigan since January 1999. Between 1972 and 1998 he was a Professor (1972-1977 Assistant Professor, 1977-1980 Associate Professor, 1980-1998 Professor) in the Mechanical and Aerospace Engineering Department of the University of California , Los Angeles . Between 1988 and 1991 he served as the Chair of the Department. Dr. Friedmann has been engaged in research on rotary and fixed wing aeroelasticity, structural dynamics and numerical methods. His research also dealt with structural optimization with aeroelastic constraints, active vibration and flutter suppression in rotary-wing and fixed-wing aircraft, as well as structural dynamics and aeroelasticity of wind turbines, prop-fan and jet engine blades. More recently his research has focused on vibration and noise reduction in helicopters using actively controlled flaps, aeroservoelasticity, aeroelastic scaling issues, computational aerothermoelasticity of hypersonic vehicles and modeling of high temperature structures under re-entry conditions. His work led to the development of improved methods for formulation and solution of rotary-wing aeroelastic problems in hover and forward flight, optimal design of helicopter rotors, vibration reduction in helicopters, improved understanding of aeroelastic scaling for both fixed-wing and rotary-wing aircraft, and the aeroelastic behavior of hypersonic vehicles. He has published extensively (over 250 journal and conference publications). A total of 29 Ph.D. students have graduated, under his mentorship, several of them hold faculty positions as well as senior positions in the aerospace industry in the US . He was Editor-in-Chief of Vertica - The International Journal of Rotorcraft and Powered Lift Aircraft, between 1980-90, and Associate Editor of the Journal of Fluids and Structures (1997-2003), he is currently Associate Editor of the Journal of the American Helicopter Society, and the AIAA Journal of Aircraft. He has given over 18 keynote lectures at national and international conferences. He has been a naturalized US citizen since 1977.

Professor Friedmann is a pre-eminent leader in aeroelasticity and structural dynamics. He has made important fundamental original contributions to aeroelasticity and structural dynamics, particularly as applied to the aeromechanical analysis, vibration and noise reduction, and design optimization in helicopters which have had an enormous influence on the understanding of aeromechanical behavior and design of modern rotorcraft systems. His pioneering contributions have led to the optimal design of rotors utilizing hingeless composite blades that are widely used in modern rotorcraft. Professor Friedmann's more recent work was instrumental in demonstrating that the actively controlled flap is the most promising device for active vibration and noise control in rotorcraft. He was the first to propose the use of actively controlled flaps for vibration reduction in rotorcraft in 1990. Since then numerous researchers have been working on the practical implementation of this approach on current rotorcraft.

It is also noteworthy that Professor Friedmann's contributions to aeroelasticity and structural dynamics have been quite broad and have not been limited exclusively to rotary-wing aeroelasticity. He has also made important contributions to fixed wing and jet engine aeroelasticity, aeroelastic behavior of hypersonic vehicles, active flutter control of fixed wings, and provided a modern interpretation of aeroelastic scaling laws.

His accomplishments have recognized several awards listed below:

Honors and Awards

• Lester Gardner Fellowship MIT, 1969-70
• ASME Structures and Materials Award, 1984
• Fellow, American Institute of Aeronautics and Astronautics (AIAA), 1991.
• AIAA Structures, Structural Dynamics, and Materials Award, 1996.
• AIAA Structures, Structural Dynamics and Materials Lecture Award, 1997.
• Aerospace Engineering Dept. Award for Outstanding Accomplishment, Michigan , 2003.
• Spirit of St. Louis Medal, ASME, 2003.
• Fellow, American Helicopter Society (AHS), 2004.
• ASME/Boeing Structures and Materials Award, 2004

Specializations & Research Interests
Rotary and fixed wing computational aeroelasticity, vibration and noise reduction in helicopters using actively controlled flaps, hypersonic vehicle aerothermoelasticity and aeroservoelasticity, aeroelastic scaling, hot structures for third generation reusable launch vehicles, multidisciplinary optimization, and micro air vehicles.

Education
D.Sc. Aeronautics & Astronautics, Massachusetts Institute of Technology
M.Sc. Aeronautical Engineering, Technion-Israel Institute of Technology
B.Sc. Aeronautical Engineering, Technion -Israel Institute of Technology

Society Memberships
American Institute of Aeronautics and Astronautics,Fellow
American Helicopter Society, Fellow
American Society of Mechanical Engineers, Member

Teaching Interests
Aeroelasticity (Aero 544)
Helicopter Aeromechanics (Aero 545)
Structural Dynamics (Aero 543)
Aircraft and Spacecraft Structures (Aero 315)
Aircraft Design (Aero 481)

Positions Held at Michigan
1999 - present, François-Xavier Bagnoud Professor and Director, FXB Center for Rotary and Fixed Wing Air Vehicle Design

Links
Curriculum Vitae [PDF]