homogenized energy model
The homogenized energy model (HEM) for characterizing polarization and strains in hysteretic ferroelectric materials: material
... Ginzburg-Landau energy relations, provide one method for quantifying domain wall behavior ...gradient energy terms which incorporate local polarization changes associated with domain ...The ...
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High Speed Parameter Estimation for a Homogenized Energy Model
... the model versus collected ...the homogenized energy ...the homogenized energy model are set forth that reduce computational load but may yield non-physical ...
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Efficient implementation algorithm for a homogenized energy model with thermal relaxation
... Table 2 makes it clear that Algorithm 5 is far superior computationally to a direct implementation of the homogenized energy model with thermal relaxation, as given in Algorithm 2. The test detailed ...
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Data-driven techniques to estimate parameters in the homogenized energy model for shape memory alloys
... The homogenized energy model (HEM) is a unified framework for modeling hysteresis in ferroelectric, ferromagnetic, and ferroelastic ...combines energy analysis at the lattice level with ...
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A homogenized energy model for the direct magnetomechanical effect
... To further illustrate the anhysteretic behavior of steel, we plot in Figure 2 anhysteretic data from Jiles and Atherton [18] collected at higher field inputs than the Pitman steel data shown in Figure 1. The crossing of ...
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The homogenized energy model (HEM) for characterizing polarization and strains in hysteretic ferroelectric materials: implementation algorithms and data-driven parameter estimation techniques
... the model is quantifying both the major and minor loop behavior at the three loading ...the model is very accurately characterizing the field-polarization behavior, there is some inaccuracy in the ...
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A homogenized energy model for hysteresis in ferroelectric materials: general density formulation
... extended energy relations [5, 6, ...or model-based control ...mesoscopic energy relations are manifestations of underlying stochastic distributions rather than constant values as posited for single ...
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High speed FPGA model implementation for ferroelectric and ferromagnetic transducers operating in hysteretic regimes
... a model-based control can account for these effects, the computational complexity of the model often renders this approach ...the homogenized energy model for ferroelectric and ...
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Efficient parameter estimation techniques for hysteresis models
... Actuators employing ferroelectric or ferromagnetic compounds are solid-state, efficient, and compact making them well-suited for aerospace, aeronautic, industrial and military applications. However, they also exhibit ...
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High speed inverse model implementation for real-time control of distributed parameter systems operating in non-linear and hysteretic regimes
... and homogenized energy ...the homogenized energy model due to its solid basis in the underlying physics of the material, its ability to characterize effects such as minor loops and ...
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Statistical emulator construction for nonlinear smart systems
... a model that incorporates stress and temperature-dependence to characterize the behavior of, for example, PZT and ...The homogenized energy model incorporates the nonlinear constitutive ...
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Efficient inverse compensation for hysteresis via homogenized energy models
... The homogenized energy model’s approach is to model one layer through energy principles, and then extend this to the bulk material through stochastic ...
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Experimental implementation of a hybrid nonlinear control design for magnetostrictive actuators
... the homogenized energy model has focused on applying a magnetic field to quantify changes in the internal magnetization ...the homogenized energy model was used to relate ...
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Open loop nonlinear optimal tracking control of a magnetostrictive terfenol-d actuator
... stochastic homogenized energy model which is based on previous work described in detail in ...constitutive model in the structural dynamic model and control ...the homogenized ...
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Efficient implementation algorithms for homogenized energy models
... Compared to the direct “exact” implementation of the homogenized energy model, the lookup table (LUT) implementations yield significantly better performance. Algorithms 1-4 were implemented using the ...
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A dislocation density based crystal plasticity model for simulation of deformation behavior of nickel based superalloys
... element model of the γ γ ′ − micro- structure in a crystal-plasticity based constitutive framework to simulate the response of the polycrystalline micro- structure of these ...new model for simulation of ...
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The ESRI Energy Model
... the exogenous variables we test for the presence of cointegrating relationships. If cointegrating relationships are not rejected by the data, we follow the two step Engel‐ Granger (EG) procedure for cointegration ...
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FILLED MILKS, IMITATION MILKS, AND COFFEE WHITENERS
... Filled Milk 1-Imitation milk, pasteurized, homogenized, vitamin.. I).[r] ...
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Uncertainty quantification of parenchymal tracer distribution using random diffusion and convective velocity fields
... our model was assumed to spread in a manner similar to what was seen from the signal intensity in the MRI study by Ringstad et ...our model ignores other efflux pathways directly from the SAS, such as ...
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Optimization of non periodic homogenized microstructures
... We consider an homogenized structure which is the limit of a given ma- terial mixed with holes. We would like the distribution of the holes to be as good as possible with respect to a given criterium measuring its ...
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