Zobrazeno 1 - 10
of 149
pro vyhledávání: '"R. Le Letty"'
Publikováno v:
Active Control in Mechanical Engineering ISBN: 9781003211204
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::882bffd8a4e200fa58b03ab68c931a5d
https://doi.org/10.1201/9781003211204-5
https://doi.org/10.1201/9781003211204-5
Publikováno v:
International Conference on Space Optics — ICSO 2004.
Piezoelectric actuators find their first applications in active space optics. The purpose of this paper is to describe the state of the art and some applications. Piezo actuators display attractive features for space applications, such as precise pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1293ed350ad9c75b333fb34bfb2931b
https://doi.org/10.1117/12.2307991
https://doi.org/10.1117/12.2307991
Publikováno v:
Ferroelectrics. 351:3-14
Amplified Piezoelectric Actuators offer the advantage of large deformation (up to 8%) and large strokes. Because of a prestress applied to the piezo ceramics and an efficient mechanical amplifier, they can produce large strokes both in static and dyn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da75d85f40deb3a2230132ab318f1ba4
https://doi.org/10.1080/00150190701351865
https://doi.org/10.1080/00150190701351865
Publikováno v:
Matériaux & Techniques. 89:48-54
Several classes of low-voltage Piezo Actuators have been developed by Cedrat Technologies in order to cover needs for Precise and/or Fast Positioning. This paper discusses of the ability for these Actuators to meet these needs and illustrates it with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c01f45d357664b734e91646e49e249b1
https://doi.org/10.1051/mattech/200189120048s
https://doi.org/10.1051/mattech/200189120048s
Publikováno v:
International Journal for Numerical Methods in Engineering. 40:3385-3403
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6d7b33e18f593c0591086d2427b1e4e
https://doi.org/10.1002/(sici)1097-0207(19970930)40:18<3385::aid-nme218>3.0.co
https://doi.org/10.1002/(sici)1097-0207(19970930)40:18<3385::aid-nme218>3.0.co
Publikováno v:
Journal of Alloys and Compounds. 258:61-73
Rare earth-iron magnetostrictive alloys, especially Terfenol-D, feature “giant” magnetostrains: static strains of 1000–2000 ppm and dynamic strains of 3500 ppm are reported. These strains permit building various actuating devices (actuators, tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2e79527b67e2e87285067a85af4d993
https://doi.org/10.1016/s0925-8388(97)00070-4
https://doi.org/10.1016/s0925-8388(97)00070-4
Autor:
M. Barré, Germain Poiet, M. Bokaie, S. Pasquarella, A. Bataille, Mustapha Meftah, Abdanour Irbah, R. Le Letty
Publikováno v:
Sensors and Systems for Space Applications V. Proceedings of the SPIE Volume 8385
Sensors and Systems for Space Applications V. Proceedings of the SPIE Volume 8385, May 2012, Baltimore, United States. pp.838510, ⟨10.1117/12.917580⟩
Sensors and Systems for Space Applications V. Proceedings of the SPIE Volume 8385, May 2012, Baltimore, United States. pp.838510, ⟨10.1117/12.917580⟩
International audience; All space instruments contain mechanisms or moving mechanical assemblies that must move (sliding, rolling, rotating, or spinning) and their successful operation is usually mission-critical. Generally, mechanisms are not redund
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::448f03352b91633760adbf81789fd493
https://doi.org/10.1117/12.917580
https://doi.org/10.1117/12.917580
Publikováno v:
Journal of Intelligent Material Systems and Structures. 4:428-431
Ultrasonic motors use a frictional force, produced by high frequency vibrations created by the piezoelectric effect of the stator, to drive the rotor. These devices have been widely stud ied, especially in Japan. A stator of a piezoelectric ultrasoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef4a1b7a7ce586bce0696a102c4a7a3d
https://doi.org/10.1177/1045389x9300400320
https://doi.org/10.1177/1045389x9300400320
Publikováno v:
Mechatronic Systems and Control. 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f53a9b2cbe7267428f58f59deb98f23
https://doi.org/10.2316/j.2010.216.680-0157
https://doi.org/10.2316/j.2010.216.680-0157
Publikováno v:
IEEE Transactions on Magnetics. 32:4749-4751
A resonant magnetostrictive motor was built and tested. Its stator modules are made of a ring and two Terfenol-D linear actuators. Two resonant modes of the modules (a translation mode and a flexure mode) are coupled in order to produce elliptical vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d940439e23449873803137a1a13c498
https://doi.org/10.1109/20.539139
https://doi.org/10.1109/20.539139