Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Richard S. Pappa"'
Autor:
William R. Doggett, Jacob Heppler, Matthew K. Mahlin, Richard S. Pappa, John Teter, Kyongchan Song, Brace White, Iok Wong, Martin Mikulas
Publikováno v:
AIAA SCITECH 2023 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fef9be413ef0cc0adc26991e47990ff8
https://doi.org/10.2514/6.2023-0383
https://doi.org/10.2514/6.2023-0383
Publikováno v:
2018 AIAA Spacecraft Structures Conference.
This paper describes a lightweight, large-area solar array concept for Mars surface power called the Compact Telescoping Surface Array (CTSA). The design is derived from the Compact Telescoping Array (CTA) proposed in 2015 for high-power spacecraft.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57317a38cd900d70d624a2751442e91d
https://doi.org/10.2514/6.2018-1944
https://doi.org/10.2514/6.2018-1944
Publikováno v:
2nd AIAA Spacecraft Structures Conference.
Lightweight, high-efficiency solar arrays are required for future deep space missions using high-power Solar Electric Propulsion (SEP). Structural performance metrics for state-of-the art 30-50 kW flexible blanket arrays recently demonstrated in grou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::865dba96da1c37386c3c98067a22536f
https://doi.org/10.2514/6.2015-1398
https://doi.org/10.2514/6.2015-1398
Publikováno v:
Experimental Techniques. 30:46-51
Solar sailing is a promising, future in-space propulsion method that uses the small force of reflecting sunlight to accelerate a large, reflective membrane without expendable propellants. One of two solar sail configurations under development by NASA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c38bbed44f4572da59c13a6f9d7edb5
https://doi.org/10.1111/j.1747-1567.2006.00042.x
https://doi.org/10.1111/j.1747-1567.2006.00042.x
Publikováno v:
AIAA Journal. 42:2124-2129
Photogrammetry has proven to be a valuable tool for static and dynamic profiling of membrane-based inflatable and ultralightweight space structures. However, the traditional photogrammetric targeting techniques used for solid structures, such as atta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b788085a2c69741291cf599eba83b817
https://doi.org/10.2514/1.5988
https://doi.org/10.2514/1.5988
Autor:
Thomas W. Jones, Paul M. Danehy, Adrian A. Dorrington, Richard S. Pappa, Jonathan Black, Joseph R. Blandino
Publikováno v:
Journal of Spacecraft and Rockets. 40:858-867
The technique of using hundreds or thousands of projected dots of light as targets for photogrammetry and videogrammetry of gossamer space structures is documented. Photogrammetry calculates the three-dimensional coordinates of each target on the str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e9dfe319e6ed565e27de2641a774566
https://doi.org/10.2514/2.7047
https://doi.org/10.2514/2.7047
Publikováno v:
2012 38th IEEE Photovoltaic Specialists Conference.
NASA is currently developing advanced solar cell and solar array technologies to support future exploration activities. These advanced photovoltaic technology development efforts are needed to enable very large (multi-hundred kilowatt) power systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5f181662ba34192d84b4c757826a6e1
https://doi.org/10.1109/pvsc.2012.6318277
https://doi.org/10.1109/pvsc.2012.6318277
Publikováno v:
Journal of Guidance, Control, and Dynamics. 17:257-262
Recent experiences in phenomenological identification of nonlinear interactions in structures are presented. Free oscillations of quadratically and cubically coupled pairs of oscillators are analytically studied to illustrate nonlinear interactions b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44f7ca5ad84f2c515899901051a24cc3
https://doi.org/10.2514/3.21191
https://doi.org/10.2514/3.21191
Publikováno v:
Journal of Guidance, Control, and Dynamics. 16:852-858
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c14f830a7534a41926fe7c1bc42ca462
https://doi.org/10.2514/3.21092
https://doi.org/10.2514/3.21092
Publikováno v:
Journal of Guidance, Control, and Dynamics. 15:840-846
Recent laboratory results using a refined phase resonance method and the eigensystem realization algorithm on the same test structure are reported. These methods are dissimilar modal identification techniques suitable for future large spacecraft. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11d0fa0db170336c83dacc652e4d4afc
https://doi.org/10.2514/3.20915
https://doi.org/10.2514/3.20915