Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Christophe Talbot"'
Autor:
Max Calabro, Christophe Talbot
Publikováno v:
Acta Astronautica. 63:357-366
A pressure-fed system is leading to a stage easy to operate, reliable, needing no costly solutions (expander engine, boost pumps). On the other hand, many R&D programs are going on all ceramic liquid engines, engines cooled by “effusion” (DLR), T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a11d9d79e47ddb1c1622c7d1be360775
https://doi.org/10.1016/j.actaastro.2007.12.061
https://doi.org/10.1016/j.actaastro.2007.12.061
Publikováno v:
Journal of Guidance, Control, and Dynamics. 30:1228-1238
This paper presents an interior-point approach for solving optimal control problems. We combine the idea of logarithmic penalization (used to solve large-scale problems with relatively few iterations) with dedicated linear algebra solvers (QR factori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d2f6cbbf9fa9fd0fb328db587be55db
https://doi.org/10.2514/1.18196
https://doi.org/10.2514/1.18196
Autor:
Christophe Talbot, Nicolas Bérend
Publikováno v:
Aerospace Science and Technology. 10:222-232
Launcher trajectory optimization is a complex task, especially when considering the specific problems arising in the study of reusable launch vehicles. Part of the difficulty comes from the different characteristics of the trajectory arcs which make
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1cbc95a39c4e45a2a8cdfa11d884c4e
https://doi.org/10.1016/j.ast.2005.11.004
https://doi.org/10.1016/j.ast.2005.11.004
Publikováno v:
IFAC Proceedings Volumes. 37:405-410
In the framework of future launchers design studies, CNES and ONERA are studying possible improvements of tools and methods for trajectory optimization. Trajectory optimization of reusable launch vehicle (RLV) is a very complex task calling for a ver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cec72651e2093564fed7da7b11d66fc9
https://doi.org/10.1016/s1474-6670(17)32208-5
https://doi.org/10.1016/s1474-6670(17)32208-5
Autor:
Yves Prel, Emilie Arnoud, Anton Kolozezny, Marco Prampolini, Yuriy Sumin, Olivier Gogdet, Christophe Talbot
Publikováno v:
57th International Astronautical Congress.
The concepts of launchers studied, proposed and designed during the last decades in Europe have not succeeded in bringing down the main hurdle to space activities: in-orbit injection cost. In the past few years, ASTRIUM Space Transportation has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd3a6242d952f05f04927d0210433bee
https://doi.org/10.2514/6.iac-06-d2.2.03
https://doi.org/10.2514/6.iac-06-d2.2.03
Publikováno v:
57th International Astronautical Congress.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8682754358f9f58361f1a2802df9d8c
https://doi.org/10.2514/6.iac-06-d2.4.06
https://doi.org/10.2514/6.iac-06-d2.4.06
Publikováno v:
Nonconvex Optimization and Its Applications ISBN: 9780387300634
This paper presents some methods for solving in a fast and reliable way the linear systems arising when solving an optimal control problem by a Runge-Kutta discretization scheme, combined with an interior-point algorithm. Our analysis holds for a mul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93855dba9ee459e0a774867677b9bbe7
https://doi.org/10.1007/0-387-30065-1_1
https://doi.org/10.1007/0-387-30065-1_1
Autor:
Marco Prampolini, Yves Prel, Olivier Gogdet, Martin Ponçon, Christophe Bonnal, David Iranzo-Greus, Christophe Talbot
Publikováno v:
56th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1eee251e47a61fe51f2bdbfedccf231
https://doi.org/10.2514/6.iac-05-d2.4.07
https://doi.org/10.2514/6.iac-05-d2.4.07
Publikováno v:
56th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee3809204489500d4d777f6881630197
https://doi.org/10.2514/6.iac-05-d2.5.01
https://doi.org/10.2514/6.iac-05-d2.5.01
Publikováno v:
56th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b31d9838373083f720d46c894aa135
https://doi.org/10.2514/6.iac-05-c1.p.18
https://doi.org/10.2514/6.iac-05-c1.p.18