Efficient Implementation Algorithms for Homogenized Energy Models

Braun, Thomas; Smith, Ralph
September 2006
Continuum Mechanics & Thermodynamics;Sep2006, Vol. 18 Issue 3/4, p137
Academic Journal
The homogenized energy framework quantifying ferroelectric and ferromagnetic hysteresis is increasingly used for comprehensive material characterization and model-based control design. For operating regimes in which thermal relaxation mechanisms and stress-dependencies are negligible, existing algorithms are sufficiently efficient to permit device optimization and the potential for real-time control implementation. In this paper, we develop algorithms employing lookup tables which permit the high speed implementation of formulations which incorporate relaxation mechanisms and electromechanical coupling. Aspects of the algorithms are illustrated through comparison with experimental data.


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