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Direct numerical simulation of a bubble motion in a spherical tank under external forces and microgravity conditions

Autor: Barbara Busset, Sébastien Tanguy, Annaig Pedrono, Jean Mignot, Henri Bavestrello, Alexis Dalmon, Mathieu Lepilliez

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2018, 849, pp.467-497. ⟨10.1017/jfm.2018.389⟩

International audience; We present, in this paper, numerical simulations of bubble sloshing in a spherical tank, resulting from a tank rotation around a fixed axis in microgravity conditions. This configuration is of great interest in space applicati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::329e2ac0b91e129134c3c0c572c49331
https://doi.org/10.1017/jfm.2018.389

Attitude and active payload control: the H ∞ revolution

Autor: Jean Mignot, Christelle Pittet, F. Viaud

Publikováno v: IFAC-PapersOnLine. 50:6440-6445

In this paper, the different steps of H∞ control story at CNES for the attitude of satellites and test beds are presented. From early studies in the 90’s to industrial operational use in orbit, the way to tune H∞ controllers with respect to the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e24ee10d44e036ec9e0c93b65564a50f
https://doi.org/10.1016/j.ifacol.2017.08.1033

In-flight results of adaptive attitude control law for a microsatellite

Autor: Christelle Pittet, Dimitri Peaucelle, Jean Mignot, Alexandru-Razvan Luzi, Jean-Marc Biannic

Publikováno v: CEAS Space Journal
CEAS Space Journal, Springer, 2015, 7 (2), pp.291-302. ⟨10.1007/s12567-014-0067-8⟩
CEAS Space Journal, 2015, 7 (2), pp.291-302. ⟨10.1007/s12567-014-0067-8⟩

International audience; Because satellites usually do not experience large changes of mass, center of gravity or inertia in orbit, linear time invariant (LTI) controllers have been widely used to control their attitude. But, as the pointing requireme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bf0ed69567df3f290895183785d5bcb
https://doi.org/10.1007/s12567-014-0067-8

Nonlinear dynamic inversion for redundant systems using the EKF formalism

Autor: Mathieu Rognant, Daniel Alazard, Hélène Evain, Jean Mignot

Publikováno v: Porceedings of the 2016 American Control Conference (ACC)
2016 American Control Conference (ACC)
2016 American Control Conference (ACC), Jul 2016, Boston, United States. pp. 348-353, ⟨10.1109/ACC.2016.7524939⟩
ACC
2016 American Control Conference (ACC), Jul 2016, Boston, United States. Porceedings of the 2016 American Control Conference (ACC), pp. 348-353, 2016, 〈10.1109/ACC.2016.7524939〉
The 2016 American Control Conference
The 2016 American Control Conference, Jul 2016, BOSTON, United States

International audience; This paper presents an allocator for over-actuated systems based on the Extended Kalman Filter (EKF). The main advantages of the proposed approach are the greater flexibility in handling the constraints and its real-time capab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f92ab4e67ee5dffb9d22c3612f81893a
https://hal.archives-ouvertes.fr/hal-01405187/file/Evain_16571.pdf