Measurement of unsteady aerodynamic characteristics of a subscale aerobatic aircraft in high angle-of-attack maneuvers
Dantsker, Or Daniel
Loading…
Permalink
https://hdl.handle.net/2142/89040
Description
Title
Measurement of unsteady aerodynamic characteristics of a subscale aerobatic aircraft in high angle-of-attack maneuvers
Author(s)
Dantsker, Or Daniel
Issue Date
2015-12-11
Director of Research (if dissertation) or Advisor (if thesis)
Selig, Michael S.
Department of Study
Aerospace Engineering
Discipline
Aerospace Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Aerodynamics
Unmanned Aerial Vehicle (uav)
Aerobatic
high angle-of-attack
Abstract
High angle-of-attack flight testing was performed using the UIUC Subscale Sukhoi, which is a 35% scale, 2.6 m (102 in) wingspan Sukhoi 29S electric model aircraft that was developed at the University of Illinois at Urbana-Champaign. The aircraft was instrumented with a custom sensor data acquisition system that allowed the motion and control inputs of the aircraft to be captured at a rate of 100 Hz. During the spring, summer, and fall of 2015, the UIUC Subscale Sukhoi was flown through a variety of high angle of attack maneuvers, specifically unpowered aggravated stalls, descending harriers, walls, and wing rock flight, during which flight data was recorded by the sensor data acquisition system. The flight data recorded during the maneuvers was processed to produce flight path trajectory plots, time histories and aircraft aerodynamic coefficient data. These plots showed unsteady aerodynamic effects exhibited by the aircraft. Among these results was one version of wing rock, where given a certain aircraft configuration with constant control surface inputs, the aircraft would wing rock with a constant frequency while the lift and drag coefficient oscillated with rapidly increasing then decreasing amplitudes, which has yet to be described in the literature.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
