| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hubert, Arnaud
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2014Multi-axis Force Sensing with Pre-stressed Resonant Composite Plates : An Alternative to Strain Gauge Force Sensors
- 2014Multi-axis Force Sensing with Pre-stressed Resonant Composite Plates : An Alternative to Strain Gauge Force Sensors
- 2013Irreversible thermodynamics and smart materials systems modelling. Example of magnetic shape memory actuators.
- 2013Irreversible thermodynamics and smart materials systems modelling. Example of magnetic shape memory actuators.
- 2012Port hamiltonian modeling of MSMA based actuator: toward a thermodynamically consistent formulation.
- 2012Magnetic Shape Memory Alloys as smart materials for micro-positioning devices.
- 2012Magnetic Shape Memory Alloys as smart materials for micro-positioning devices.
- 2011From canonical Hamiltonian to Port-Hamiltonian modeling application to magnetic shape memory alloys actuators.
- 2011From canonical Hamiltonian to Port-Hamiltonian modeling application to magnetic shape memory alloys actuators.
- 2010Synthèse et commande robuste d'une micropince piézoélectrique intégrée.
- 2010Ni-Mn-Ga sigle crystal shape memory alloy magneto-thermo-mechanical modeling.citations
- 2010Contribution to the modeling of mechatronic and micro-mechatronic devices.
- 2008From SMAS to MSMS : Modeling and Control.
- 2008Nonlinear Hamiltonian modelling of magnetic shape memory alloy based actuators.citations
- 2008Modeling and control of micro-mechatronic devices : application of variational and energetic methods for micro-actuator design.
- 2007Original hybrid control for robotic structures using magnetic shape memory alloys actuators.
- 2007Modelling Rearrangement Process of Martensite Platelets in a Magnetic Shape Memory Alloy Ni2MnGa Single Crystal under Magnetic Field and (or) Stress Actioncitations
- 2006Magnetic shape memory alloy and actuator design.
- 2006Multistable actuator based on magnetic shape memory alloy..
- 2006Multistable actuator based on magnetic shape memory alloy.
Places of action
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conferencepaper
Magnetic shape memory alloy and actuator design.
Abstract
International audience ; In the field of micromechatronics, microrobotics and specially microfactories, active materials are used in most cases. They permit high resolution and distributed actuation. In this area, Magnetic Shape Memory Alloys (MSMA) are possible candidates. If a lot of studies deal with MSMA, only few applications use them until now. MSMA are attractive active materials because they have large strain (about 10%) as the classical shape memory alloys (SMA), but can provide a 100 times shorter time response. The main disadvantages of MSMA based actuators are the brittleness of the single-crystal material, the difficulty to apply the strong magnetic field required to obtain sufficient strain and the nonlinear behaviour. We propose in this paper a novel MSMA based actuator changing the disadvantage of the hysteretic behaviour into an advantage. This device is a push-pull actuator: two pieces of MSMA material act in an opposite way. The magnetic fields are created by coils and concentrated by ferromagnetic circuits. In order to move the central part of the actuator, a current pulse in the first coil is generated. The hysteretic behaviour of the material permits to keep a stable position when no current is applied. A current pulse in the second coil permits to displace the central part in the opposite direction. The stable position depends on the magnitude and the time duration of the current pulses and an infinity of stable positions can be reached. The use of current pulses permits also a reduction of the coil heating (Joule effect losses) and a reduction of the magnetic circuit size. The performances and characteristics of MSMA are between these of classical SMA and these of piezo-electric materials. A thermo-magneto-mechanical model of our actuator is currently in development in order to design an efficient control law welladapted to the specific MSMA properties.