Fluid-Structure Coupled Analysis of a Transport Aircraft and Flight-Test Validation

2011 ◽  
Vol 48 (2) ◽  
pp. 381-390 ◽  
Author(s):  
Stefan Keye
Keyword(s):  
Flight Test ◽  
Test Validation ◽  
Coupled Analysis ◽  
Fluid Structure ◽  
Transport Aircraft

Fluid-structure coupled analysis of tandem 2D elastic panels

2021 ◽  
Vol 111 ◽  
pp. 106521
Author(s):  
Hao Zhou ◽  
Gang Wang ◽  
Haris Hameed Mian ◽  
Mengzhu Qin
Keyword(s):  
Coupled Analysis ◽  
Fluid Structure

Post-stall flight dynamics of commercial transport aircraft configuration: A nonlinear bifurcation analysis and validation

2020 ◽  
pp. 095441002094408
Author(s):  
Fei Cen ◽  
Qing Li ◽  
Zhitao Liu ◽  
Lei Zhang ◽  
Yong Jiang
Keyword(s):  
Wind Tunnel ◽  
Bifurcation Analysis ◽  
Large Angle ◽  
Unsteady Aerodynamics ◽  
Time History ◽  
Periodic Oscillation ◽  
Flight Dynamics ◽  
Flight Test ◽  
Loss Of Control ◽  
Transport Aircraft

Loss-of-control has become the largest fatal accident category for worldwide commercial jet accidents, and any initiative aimed at preventing such events requires an understanding of the fundamental aircraft behavior, especially the flight dynamics at post-stall region at which loss-of-control usually occurred. A series of low-speed static and dynamic wind tunnel tests of the Common Research Model over a large angle of attack/sideslip envelope was conducted and a non-linear aerodynamic model was developed. The bifurcation analysis, complemented by time-history simulation was used to understand the post-stall flight dynamics and the numerical analysis results were preliminary validated by wind tunnel virtual flight test. Several representative post-stall behaviors for the transport aircraft have been identified, including departure, periodic oscillation, post-stall gyration and steep spiral, etc. Furthermore, the predicted periodic oscillation in pitch motion has been perfectly duplicated in wind tunnel virtual flight test. The approach used in this work shows a promising way to uncover the flight dynamics of transport aircraft at extreme and loss-of-control flight conditions, as well as to apply to nonlinear unsteady aerodynamics modeling and validation, flight accident investigation, advanced flight control law design or studying initiative for loss-of-control prevention or mitigation.

Design and Analysis of Rocket Ejectors with Experimental and Flight Test Validation

2019 ◽  
Author(s):  
Brian J. Leege ◽  
Ben Miller ◽  
Tom Pflibsen ◽  
Carl Knowlen
Keyword(s):  
Flight Test ◽  
Test Validation
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