Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Mark Whorton"'
Publikováno v:
ASCEND 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96495f87a1cea159d8a72516e2ea5d29
https://doi.org/10.2514/6.2022-4332
https://doi.org/10.2514/6.2022-4332
Publikováno v:
Acta Astronautica. 68:571-575
In the early to mid-2000s, NASA made substantial progress in the development of solar sail propulsion systems. Solar sail propulsion uses the solar radiation pressure exerted by the momentum transfer of reflected photons to generate a net force on a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c3e6d6e58f77b817d4f6b9e07474a93
https://doi.org/10.1016/j.actaastro.2010.02.008
https://doi.org/10.1016/j.actaastro.2010.02.008
Autor:
Dale Lawrence, Mark Whorton
Publikováno v:
Journal of Spacecraft and Rockets. 46:1298-1308
achieved with zero control torque, enabling asymptotic stabilization of these equilibria in the local-vertical–localhorizontal frame despite the underactuation inherent in magnetic control. Lyapunov stability properties of these equilibria are dete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f7988caa1abf2be02439ea9ff51a310
https://doi.org/10.2514/1.43088
https://doi.org/10.2514/1.43088
Autor:
Dale Lawrence, Mark Whorton
Publikováno v:
Journal of Guidance, Control, and Dynamics. 32:974-985
Attitude dynamics of a solar sail are described relative to an orbiting local-vertical/local-horizontal frame under the influence of aerodynamic, solar, and gravity-gradient torques. The complete set of equilibria of the sail normal vector in local-v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::910612bd5d95ddc4747e21d5f33bdc7b
https://doi.org/10.2514/1.35970
https://doi.org/10.2514/1.35970
Autor:
Mark Whorton
Publikováno v:
Journal of Aerospace Computing, Information, and Communication. 5:161-173
High-performance control design for a flexible space structure is challenging as highfidelity plant models are difficult to obtain a priori. Uncertainty in the control design models typically require a very robust, low-performance control design, whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d1bbbda70df1f4a96cbccb4ecb93105
https://doi.org/10.2514/1.31716
https://doi.org/10.2514/1.31716
Autor:
Mike Soutullo, Frank Lehmann, Andreas Eckardt, Mark Whorton, Jurgen Drescher, David Krutz, John M. Horack
Publikováno v:
IGARSS
Over the past 20 years, the DLR Institute of Optical Sensor Systems has been responsible for a variety of multi and hyperspectral instruments. This responsibility has included the design, manufacturing, calibration, verification and in orbit validati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0592ea23093cd6ffe0c88d642e2b26c1
https://doi.org/10.1109/igarss.2015.7326053
https://doi.org/10.1109/igarss.2015.7326053
Autor:
Mark Whorton
Publikováno v:
Journal of Spacecraft and Rockets. 42:152-160
Many microgravity science experiments need an active isolation system to provide a sufficiently quiescent acceleration environment. The glovebox integrated microgravity isolation technology (g-LIMIT) vibration isolation system will provide isolation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce9808ad6903a5e1f4809f61661996a9
https://doi.org/10.2514/1.4066
https://doi.org/10.2514/1.4066
Publikováno v:
Earthquake Engineering & Structural Dynamics. 27:1315-1330
This study investigates the use of H2, p-synthesis, and mixed H2/mu methods to construct full-order controllers and optimized controllers of fixed dimensions. The benchmark problem definition is first extended to include uncertainty within the contro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::133ee93ee85af61c81bae686ed3c0e7c
https://doi.org/10.1002/(sici)1096-9845(1998110)27:11<1315::aid-eqe786>3.0.co
https://doi.org/10.1002/(sici)1096-9845(1998110)27:11<1315::aid-eqe786>3.0.co
Publikováno v:
Journal of Guidance, Control, and Dynamics. 19:1262-1269
Recent developments in the field of robust multivariable control have merged the theories of H-infinity and H-2 control. This mixed H-2/H-infinity compensator formulation allows design for nominal performance by H-2 norm minimization while guaranteei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bc9cb2b15872a35abd76c261912e28d
https://doi.org/10.2514/3.21781
https://doi.org/10.2514/3.21781
Publikováno v:
AIAA Guidance, Navigation and Control Conference and Exhibit.
This paper presents the preliminary study results of dynamic modeling and flight control simulation of large flexible launch vehicles such as the Ares-I Crew Launch Vehicle. A complete set of six-degrees-of-freedom dynamic models of the Ares-I, incor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c500855f312ef5f4370fd17dff7e03f
https://doi.org/10.2514/6.2008-6620
https://doi.org/10.2514/6.2008-6620