Port hamiltonian modeling of MSMA based actuator: toward a thermodynamically consistent formulation.

Nandish Calchand (1) , Arnaud Hubert (1) , Yann Le Gorrec (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

This paper presents a thermodynamically consistent model of MSMA (Magnetic Shape Memory Alloys) under port Hamiltonian framework. It is based on previous works on MSMA proposed in (Gauthier et al., 2008; Calchand et al., 2011). The main di erence lies in the choice of the state variables and manipulated thermodynamic forces. Furthermore in (Gauthier et al., 2008), subsequent experiments revealed a highly hysteretic behavior of these materials. Here, the simpli ed hysteretic behavior is incorporated into the port-hamiltonian model to obtain a ner and more precise model. Such modeling will allow the use of a wide range of energy based methods to design the associated control system. The paper ends with some extensions to more complex hysterestic phenomena by using Preisach like model. First ideas are proposed to extend the previous physical model to systems with internal hysteretic loops.

Mots clés: Irreversible thermodynamics; hysteresis; dissipative port Hamiltonian systems; dissipative port Hamiltonian systems.

Domaines: Micro et nanotechnologies/Microélectronique

Nandish Calchand, Arnaud Hubert, Yann Le Gorrec. Port hamiltonian modeling of MSMA based actuator: toward a thermodynamically consistent formulation.. 4th IFAC Workshop on Lagrangian and Hamiltonian Methods for Non Linear Control, LHMNLC'12., Aug 2012, Bertinoro, Italy. pp.1-5. ⟨hal-00803314⟩