Page 37 - ASME IMECE 2018 Program

TRACK PLENARY
Track 3: Advances in Aerospace Technology
3-20-1: ADVANCES IN AEROSPACE TECHNOLOGY
PLENARY I
Wednesday, November 14, 9:00am–9:45am
Room 304, David L. Lawrence Convention Center
Rapid, Physics-Based Reduced Order Modeling of
Nonlinear Aerodynamics
(IMECE2018-90092)
Marilyn Smith
Georgia Institute of Technology
Abstract: The ability to rapidly obtain accurate static and
unsteady loads and moments on complex aerodynamic and
bluff bodies has been one of the major deficiencies in next
generation vehicle design, including agile unmanned aerial
systems (UAS) and in tethered loads analysis such as slung,
crane, towed, and parachute configurations. Two reduced-
order models (ROM) that build up complex shape simulation of
quasi-steady loads and moments and then extend the quasi-
steady analysis to unsteady applications have been developed.
Because the ROMs are based on quasi-empirical theory, the
methods are applicable to a wide range of configurations and
rapid enough for use in early design and simulation tools.
Validation with computations, wind tunnel experiments, and
flight tests has demonstrated significant improvements in
predictions over current approaches for design and analysis.
Demonstrations include control law design for agile UAS and
helicopter slung load handling qualities and stability analysis.
Bio: Dr. Marilyn Smith is a Professor in the
School of Aerospace Engineering at the
Georgia Institute of Technology and Associate miniature sensors, and low-power electronics and software for
Director of the Georgia Tech Vertical Lift
Research Center of Excellence. She previously manufacturing for complex heterogenous structures.
worked at Lockheed-Georgia Company
(Lockheed-Martin) and McDonnell-Douglas Helicopters
(Boeing-Mesa). Her research encompasses computational
unsteady aerodynamics and aeroelasticity for complex
configurations. She is currently developing reduced-order
models for nonlinear applications in active flow control, bluff
bodies, and turbulence. She is a Technical Fellow of AHS and
AIAA Fellow. She has twice been a team member for AHS
AgustaWestland International Fellowship Awards and NASA
Group Achievement Awards. She currently serves on the AHS
Board of Directors and AHS Technical Council, as well as
Associate Editor for the Journal of Fluids and Structures, AIAA
Journal, Journal of the American Helicopter Society, and the
Aeronautical Journal.
Track 3: Advances in Aerospace Technology
3-20-2: ADVANCES IN AEROSPACE TECHNOLOGY
PLENARY II
Wednesday, November 14, 8:00am–8:45am
Room 305, David L. Lawrence Convention Center
On the Flightpath to Adaptive Aerospace Structures:
Articulated Tensegrity
(IMECE2018-90093)
George Lesieutre
Pennsylvania State University
Abstract: Adaptive structures are flying and the field is
advancing. This talk will trace key developments in adaptive
flight structures technology from circa 1970 to present-day.
Such developments include advances in materials, devices,
control, structural integration, and design—as well as
applications to space and flight vehicles. Articulated tensegrity
space structures provide a recent example. A novel
deployment strategy for cylindrical tensegrity masts starts from
a Class-1 configuration having high packaging efficiency and—
through a multi-stage deployment process—ending as a
Class-2 tensegrity having higher stiffness. Strut lengths are
fixed and articulation is achieved via active cables. Design
optimization revealed packaging efficiency and deployed
stiffness exceeding that of existing technology, and an initial
benchtop realization was demonstrated. The talk will also
address the relatively slow process of technology maturation
and adoption, and provide context from the historical
development of aeronautical materials and structures.
Continuing advances promise a bright future. Such advances
include acoustic metamaterials for damping; energy harvesting,
conditioning monitoring and prognosis; and additive 3-D
Bio: Dr. George Lesieutre is Associate Dean
for Research and Graduate Studies and
Professor of Aerospace Engineering at Penn
State. He recently completed terms as
Department Head and Director of the Center
for Acoustics and Vibration. He earned a B.S.
in Aeronautics and Astronautics from MIT and a Ph.D. in
Aerospace Engineering from UCLA. Prior to joining Penn State,
he held positions at SPARTA, Rockwell Satellite Systems,
Allison Gas Turbines, and Argonne National Lab. His research
interests include structural dynamics of aerospace systems,
including passive damping, active structures, and energy
harvesting. Dr. Lesieutre served as PI of several major DARPA
programs in adaptive structures and has received five society
best paper awards. He has advised more than 60 graduate xxxv
students and has published more than 300 technical articles
and patents. Dr. Lesieutre is a Fellow of AIAA, served a term
on the AIAA Board of Directors, and served as General Chair
of the AIAA Science and Technology Forum (SciTech 2015).
An instrument-rated private pilot, he once paddled a canoe
from Montreal to the Gulf of Mexico as part of a historical
reenactment and, more recently, ran a 50-mile ultramarathon.