Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Danny A. Barrows"'
Publikováno v:
Progress in Aerospace Sciences. 54:1-58
Photogrammetric techniques have been used for measuring the important physical quantities in both ground and flight testing including aeroelastic deformation, attitude, position, shape and dynamics of objects such as wind tunnel models, flight vehicl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5428a94e56f316717c960fef2998cc09
https://doi.org/10.1016/j.paerosci.2012.03.002
https://doi.org/10.1016/j.paerosci.2012.03.002
Publikováno v:
AIAA Journal. 40:1105-1112
A preliminary study is described for determining aerodynamic loads based on optical elastic deformation measurementsusing a videogrammetricsystem. Data reduction methods are developed and used to extract the normal force and pitching moment from beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54d4b46ac221ee12ed3b26786cbbe922
https://doi.org/10.2514/2.1759
https://doi.org/10.2514/2.1759
Publikováno v:
29th AIAA Applied Aerodynamics Conference.
Blade displacement measurements were acquired during a wind tunnel test of the full-scale UH-60A Airloads rotor. The test was conducted in the 40- by 80-Foot Wind Tunnel of the National Full-Scale Aerodynamics Complex at NASA Ames Research Center. Mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b565ca0e776f15979c8de8393891a168
https://doi.org/10.2514/6.2011-3655
https://doi.org/10.2514/6.2011-3655
Publikováno v:
46th AIAA Aerospace Sciences Meeting and Exhibit.
High-speed photogrammetric measurements are being used to assess the impact dynamics of the Orion Crew Exploration Vehicle (CEV) for ground landing contingency upon return to earth. Test articles representative of the Orion capsule are dropped at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6571c1a2da9c33600135aaf4f088d261
https://doi.org/10.2514/6.2008-846
https://doi.org/10.2514/6.2008-846
Autor:
Danny A. Barrows
Publikováno v:
45th AIAA Aerospace Sciences Meeting and Exhibit.
Videogrammetric measurement technique developments at NASA Langley were driven largely by the need to quantify model deformation at the National Transonic Facility (NTF). This paper summarizes recent wind tunnel applications and issues at the NTF and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a7b13d0481a51607d6b26216e10923a
https://doi.org/10.2514/6.2007-1163
https://doi.org/10.2514/6.2007-1163
Publikováno v:
24th AIAA Aerodynamic Measurement Technology and Ground Testing Conference.
A simple optical technique for the structural characterization of lightweight space columns is presented. The technique is useful for determining the coefficient of thermal expansion during cool down as well as the induced strain during tension and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08d3729274e7f27277dd0d91048096de
https://doi.org/10.2514/6.2004-2185
https://doi.org/10.2514/6.2004-2185
Autor:
Danny A. Barrows, A. W. Burner, Peter S. Lively, Thomas G. Ivanco, Charles V. Spain, James R. Florance, Jennifer Heeg, Joshua A. DeMoss
Publikováno v:
45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference.
The Videogrammetric Model Deformation (VMD) technique, developed at NASA Langley Research Center, was recently used to measure displacements and local surface angle changes on a static aeroelastic wind-tunnel model. The results were assessed for cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fad5dfe3299a403373c3bc78d1959e0
https://doi.org/10.2514/6.2004-1677
https://doi.org/10.2514/6.2004-1677
Publikováno v:
SPIE Proceedings.
The initial concept and development of a low-cost, adaptable method for the measurement of static and dynamic aeroelastic deformation of aircraft during flight testing is presented. The method is adapted from a proven technique used in wind tunnel te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77b2848ab75def4e25fdaa3c1855333a
https://doi.org/10.1117/12.504157
https://doi.org/10.1117/12.504157
Publikováno v:
39th Aerospace Sciences Meeting and Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea730756fdad1f924703e8410bcde103
https://doi.org/10.2514/6.2001-560
https://doi.org/10.2514/6.2001-560