Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Renaud Bastaits"'
Autor:
Bilal Mokrani, Renaud Bastaits, Iulian Romanescu, Mihaita Horodinca, Ioan Burda, André Preumont
Publikováno v:
Actuators, Vol 7, Iss 3, p 41 (2018)
This paper considers the piezoelectric resistive and inductive RL shunt damping applied to rotationally periodic structures equipped with an array of regularly spaced piezoelectric patches. A method for simplifying the hardware, by reducing the size
Externí odkaz:
https://doaj.org/article/6319187da76744c3b80dbfd87e799e16
Autor:
Bilal Mokrani, Renaud Bastaits, Mihaita Horodinca, Iulian Romanescu, Ioanica Burda, Régis Viguié, André Preumont
Publikováno v:
Advances in Materials Science and Engineering, Vol 2015 (2015)
This paper considers the RL shunt damping of rotationally periodic structures with an array of regularly spaced piezoelectric patches. The technique is targeted to the damping of a specific mode with n nodal diameters. For this particular case, one c
Externí odkaz:
https://doaj.org/article/f81fc0b0452e4038869d792b0e0cb580
Publikováno v:
IEEE Transactions on Control Systems Technology. 27:2263-2270
A systematic distributed optimal control design procedure is proposed for the rejection of wind load-induced disturbances on a truss-supported segmented mirror. The distributed nature of the controller is achieved by weighing of the interaction matri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::208dcfd6407d875fa762fdf001a30666
https://doi.org/10.1109/tcst.2018.2850306
https://doi.org/10.1109/tcst.2018.2850306
Autor:
Gregory Martic, Renaud Bastaits, Mihaita Horodinca, André Preumont, David Alaluf, Bilal Mokrani, Kainan Wang
Publikováno v:
Applied optics. 57(14)
This paper presents a unimorph deformable mirror intended to be used as secondary corrector in space telescopes. The deformable mirror consists of a single-crystal silicon wafer (76.2 mm diameter, 500 μm thickness) covered with an optical coating on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::999a1798b6fdd9ff3b859f94ccc2dff8
https://pubmed.ncbi.nlm.nih.gov/29791324
https://pubmed.ncbi.nlm.nih.gov/29791324
Autor:
David Alaluf, André Preumont, Bilal Mokrani, Renaud Bastaits, Andrea A. Sangiovanni, Matteo M. Voltan
Publikováno v:
Mathematics and Mechanics of Complex Systems. 3:385-406
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975b7efb3a5aa664695c53f7d4d3d11a
https://doi.org/10.2140/memocs.2015.3.385
https://doi.org/10.2140/memocs.2015.3.385
Autor:
Mihaita Horodinca, Gregory Martic, Kainan Wang, David Alaluf, André Preumont, Renaud Bastaits, Ioan Burda
Publikováno v:
Adaptive Optics Systems V.
This paper discusses a concept of bimorph deformable mirror used in adaptive optics to compensate for manufacturing errors, gravity release and thermal distortion affecting large lightweight mirrors in space telescopes. The mirror consists of a singl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e62bfbb86b7858cd7a0c13c826643b9
https://doi.org/10.1117/12.2231702
https://doi.org/10.1117/12.2231702
Publikováno v:
Journal of Intelligent Material Systems and Structures. 23:2065-2075
This article presents a strategy for enhancing the performance of the synchronized switch damping on inductor technique used for the semiactive control of structural vibrations. This enhancement is achieved by adding a negative capacitance to the res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3179f37e0c779821b092272956e70f3
https://doi.org/10.1177/1045389x11433493
https://doi.org/10.1177/1045389x11433493
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 635:44-52
This paper explores the possibility of damping actively the camera support mast of Gamma-ray telescopes with a configuration similar to the MAGIC telescope, where the camera is supported by a curved mast and an array of cables. This is achieved by re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22e7c6363a09398d1eca8a697b7f460d
https://doi.org/10.1016/j.nima.2011.01.092
https://doi.org/10.1016/j.nima.2011.01.092
Autor:
André Preumont, Renaud Bastaits
Publikováno v:
Journal of Guidance, Control, and Dynamics. 33:1357-1367
This paper is concerned with the extrapolation of the dynamic response of the primary mirror of current 10-meter class telescopes to the next generation of 30 to 40 m extremely large telescopes and future, even larger, ones. A numerical study is cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e64fccbac1aa108dfbbdb14b35f687f
https://doi.org/10.2514/1.48719
https://doi.org/10.2514/1.48719
Publikováno v:
International Journal of Optomechatronics. 4:217-236
Atmospheric turbulence compensation for the next generation of terrestrial telescopes (30–40 m diameter) will require deformable mirrors of increasing size and a number of actuators reaching several thousands. However, the mere extrapolation of exi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0638ed23cf16a1ab9e2e703543d5740
https://doi.org/10.1080/15599612.2010.510588
https://doi.org/10.1080/15599612.2010.510588