Zobrazeno 1 - 10
of 11
pro vyhledávání: '"John E. Theisinger"'
Publikováno v:
47th AIAA Thermophysics Conference.
This work quantifies the backshell radiative heating experienced by payloads on human- scale vehicles entering the Martian atmosphere. Three underlying configurations were studied: a generic sphere, a sphere-cone forebody with a cylindrical payload,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e861bbbf70a3385d0d34d832d936d4c
https://doi.org/10.2514/6.2017-4532
https://doi.org/10.2514/6.2017-4532
Autor:
Phil Robinson, Edward A. Robertson, Joseph A. Garcia, Susan J. Stachowiak, David J. Kinney, Charles H. Campbell, Daniel A. Matz, John E. Theisinger, Breanna J. Johnson, Christopher J. Cerimele, Ronald R. Sostaric, Jeffrey V. Bowles
Publikováno v:
AIAA Guidance, Navigation, and Control Conference.
Current NASA Human Mars architectures require delivery of approximately 20 metric tons of cargo to the surface in a single landing. A proposed vehicle type for performing the entry, descent, and landing at Mars associated with this architecture is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce4f061bb5deabb08f544ccedaa8a6e1
https://doi.org/10.2514/6.2017-1898
https://doi.org/10.2514/6.2017-1898
Publikováno v:
Journal of Spacecraft and Rockets. 50:754-762
In the early stages of aeroshell shape design, it is important to strike an appropriate balance between analysis fidelity and computational effort. Because the prediction of aerodynamic heating for axisymmetric flows is significantly faster than for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59e1e83222208ee85344127be95cdcb9
https://doi.org/10.2514/1.a32211
https://doi.org/10.2514/1.a32211
Autor:
John E. Theisinger, Robert D. Braun
Publikováno v:
Journal of Spacecraft and Rockets. 46:957-966
A capability has been developed that utilizes multi objective optimization to identify hypersonic entry aeroshell shapes that will increas e landed mass capability. Aeroshell shapes are parameterized using non-uniform rational B-splines to generate c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60c54ffc926b6c9416262c2f31829ff4
https://doi.org/10.2514/1.41136
https://doi.org/10.2514/1.41136
Publikováno v:
42nd AIAA Thermophysics Conference.
In the early stages of aeroshell shape design it is important to strike the appropriate balance between analysis fidelity and computational effort. Since the prediction of aerodynamic heating in axisymmetric flows is significantly faster than three-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c04ec854a918fac4006cf0d9449d80b
https://doi.org/10.2514/6.2011-4029
https://doi.org/10.2514/6.2011-4029
Publikováno v:
13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference.
Previous work by the authors has focused on the optimization of entry aeroshell shapes based solely on objectives related to aeroshell geometry and hypersonic aerodynamic performance. This multi-objective optimization framework has been extended to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d5903bb7b9cdb622ebd9bd0558bfe6c
https://doi.org/10.2514/6.2010-9200
https://doi.org/10.2514/6.2010-9200
Autor:
Ashley M. Korzun, Michael J. Grant, Ian G. Clark, Bradley A. Steinfeldt, John E. Theisinger, Robert D. Braun
Publikováno v:
AIAA SPACE 2009 Conference & Exposition.
As the nation sets its sight on returning humans to the Moon and going onward to Mars, landing high mass payloads ( 2 t) on the Mars surface becomes a critical technological need. Viking heritage technologies (e.g., 70 sphere-cone aeroshell, SLA-561V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbaefa5d878b37ada917b30852bea151
https://doi.org/10.2514/6.2009-6684
https://doi.org/10.2514/6.2009-6684
Autor:
John E. Theisinger, Robert D. Braun
Publikováno v:
12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b30e100889b8059992aa7f0a306ad7f9
https://doi.org/10.2514/6.2008-5873
https://doi.org/10.2514/6.2008-5873
Publikováno v:
57th International Astronautical Congress.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4f8b8dc70ab7498f29bebcaf73ee89b
https://doi.org/10.2514/6.iac-06-d1.1.07
https://doi.org/10.2514/6.iac-06-d1.1.07
Publikováno v:
AIAA Atmospheric Flight Mechanics Conference and Exhibit.
This study investigates the advantages and feasibility of using ballutes for Earth entry at lunar return velocities. Using analysis methods suitable for conceptual design and assuming a CEV type entry vehicle, multiple entry strategies were investiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9eecafb7e06775be75dd8271a461913
https://doi.org/10.2514/6.2006-6276
https://doi.org/10.2514/6.2006-6276