Issue 10 Volume 41 May 16, 2003

20030036911 Pittsburgh Univ., PA
Impermeable thin Al(2)O(3) overlay for TBC Protection from Sulfate and Vanadate Attack in Gas Turbines
Mao, S. X.; Aug. 31, 2002; In English
Report No.(s): DE2002-802866; No Copyright; Avail: National Technical Information Service (NTIS)
No abstract available
NTIS
Protective Coatings; Corrosion Resistance; Thermal Control Coatings; Gas Turbines
08
AIRCRAFT STABILITY AND CONTROL
Includes flight dynamics, aircraft handling qualities, piloting, flight controls, and autopilots. For related information see also 05 Aircraft
Design, Testing and Performance and 06 Avionics and Aircraft Instrumentation.
20030032935 Ohio State Univ., Columbus, OH
Robustness Study of the Dynamic Inversion Based Indirect Adaptive Control of Flight Vehicles with Uncertain Model
Data
Yedavalli, Rama K.; Shankar, Praveen; Doman, David B.; Oct. 2002; 15 pp.; In English
Contract(s)/Grant(s): F33615-01-2-3154
Report No.(s): AD-A410308; ACC03-AIAA0020; AFRL-VA-WP-TP-2002-325; No Copyright; Avail: CASI; A03, Hardcopy
The objective of this paper is to analyze the stability robustness of dynamic inversion based control laws being used for
flight control with uncertainties in model data such as the aerodynamic stability and control derivatives. In particular, the
proposed method is aimed at determining the robustness of an indirect adaptive control system developed by the researchers
at the AFRL, which is built around a baseline dynamic inversion inner loop. MATLAB/SIMULINK is the environment used
for the development and simulation of the flight controller.
DTIC
Adaptive Control; Aerodynamic Stability; Control Systems Design; Flight Vehicles; Dynamic Control; Mathematical Models;
Robustness (Mathematics)
09
RESEARCH AND SUPPORT FACILITIES (AIR)
Includes airports, runways, hangars, and aircraft repair and overhaul facilities; wind tunnels, water tunnels, and shock tubes; flight
simulators; and aircraft engine test stands. Also includes airport ground equipment and systems. For airport ground operations see 03
Air Transportation and Safety. For astronautical facilities see 14 Ground Support Systems and Facilities (Space).
20030032354 Army Research Lab., Hampton, VA, USA
A Survey of Research Performed at NASA Langley Research Center’s Impact Dynamics Research Facility
Jackson, K. E.; Fasanella, E. L., Americ; [2003]; 21 pp.; In English; 44th AIAA/ASME/ASCE/AHS/ASC Structures,
Structural Dynamics, and Materials Conference, 7-10 Apr. 2003, Norfolk, VA, USA; Original contains color illustrations
Report No.(s): AIAA Paper 2003-1896; No Copyright; Avail: CASI; A03, Hardcopy
The Impact Dynamics Research Facility (IDRF) is a 240-ft-high gantry structure located at NASA Langley Research
Center in Hampton, Virginia. The facility was originally built in 1963 as a lunar landing simulator, allowing the Apollo
astronauts to practice lunar landings under realistic conditions. The IDRF was designated a National Historic Landmark in
1985 based on its significant contributions to the Apollo Program. In 1972, the facility was converted to a full-scale crash test
facility for light aircraft and rotorcraft. Since that time, the IDRF has been used to perform a wide variety of impact tests on
full-scale aircraft and structural components in support of the General Aviation (GA) aircraft industry, the US Department of
Defense, the rotorcraft industry, and NASA in-house aeronautics and space research programs. The objective of this paper is
to describe most of the major full-scale crash test programs that were performed at this unique, world-class facility since 1974.
The past research is divided into six sub-topics: the civil GA aircraft test program, transport aircraft test program, military test
programs, space test programs, basic research, and crash modeling and simulation.
Author
Research Facilities; Flight Tests; Crashworthiness; Gantry Cranes; Destructive Tests; General Aviation Aircraft; Structural
Reliability
14