2001 - Eidetics Corporation has been awarded a Phase III SBIR
research contract to measure the non-linear aerodynamics of the F-16XL
for NASA Langley Research Center (LaRC).
“This is Eidetics Corporation’s first Phase III SBIR,”
states Brian Kramer, Eidetics’ Vice President of Engineering.
“It represents a great opportunity for us to contribute to the
understanding of unsteady aerodynamics.”
The research is being funded under NASA LaRC’s
Creativity and Innovation program, under an effort conceived of by Mr.
Patrick Murphy, of NASA LaRC. Mr.
Murphy will act as the Government’s technical representative.
The F-16XL is primarily a delta wing aircraft
configuration, and is known to suffer from nonlinear, unsteady
aerodynamic phenomenon. This
type of behavior presents a problem for conventional aerodynamic models
used in aircraft simulation or flight control design because they do a
poor job of modeling non-linear or path-variant responses.
The Eidetics Model 2436 water tunnel has been uniquely configured
with a computer controlled model support system and submersible balance
to allow researchers to measure an aircrafts unsteady response to
dynamic maneuvers. The excellent flow visualization capability of the water
tunnel also makes it possible to observe the phenomenon that cause these
responses such as vortex position lag and burst.
This work complements and supports other programs
at LaRC by building a foundation upon which to define test requirements,
facility requirements, and methods for wind tunnel testing and flight
testing to determine nonlinear unsteady aircraft models.