Application Pages

Advanced Optimization of an IPM Machine

This example looks at the optimization of a 3-phase, 4-pole single-barrier IPM using the combined power of MagNet and OptiNet. The goal is to optimize the motor’s performance with respect to a reasonably realistic and complex objective function by changing a few simple geometric parameters (the size and position of the permanent magnets) and the advance angle.

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Coil Size Optimization - Induction Heating

In the multiple-coil configuration shown in this figure, the work piece is surrounded by six coils (coils are shown partially so that the workpiece can be seen). The objective of this optimization is to find the inner radii of the coils in order to obtain a uniform temperature in the upper portion of the workpiece.

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Design Optimization of an NDT Sensor Probe

Design of the probe and its suitability for detecting particular types of defects: starting from a model based on the WFNDEC Eddy Current Benchmark Problem 2, OptiNet was used to determine the optimal coil geometry and frequency at which the inspection should be performed.

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Minimizing the Cogging Torque in a Brushless DC Motor

OptiNet is used with MagNet in order to minimize the cogging torque by varying the geometry yet maintaining a certain running torque in a brushless dc motor. This optimization run took an hour to complete and resulted in reducing the cogging torque by 77%.

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Optimization Of A Die Press (T.E.A.M. Problem 25)

In this device, the objective is to find the size of the inner die mold and the shape of the outer die mold in order to obtain the desired magnetic field in the cavity shown in the figure. Using MagNet and OptiNet, the optimal radius for the inner mold and the elliptical shape for the outer mold can be determined given specified design objectives.

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Optimization of a Loudspeaker: Minimal Mass

The loudspeaker model shown here is made of two iron pieces and a permanent magnet. The permanent magnet drives the flux through the iron and the air gap. The goal of the optimization is to find a loudspeaker designer that has the minimal mass necessary to produce a flux density of 1.8 Tesla in the air gap.

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Optimizing Electromechanical and Control Circuit Parameters of Brushless Motors

Optimizing the performance of modern brushless DC motors typically requires evaluating both the electromechanical and control circuitry design factors – examining either in isolation yields only partial improvements. This example illustrates how OptiNet can be used to further refine the results obtained by co-simulations.

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SRM Design Optimization

The example presented here demonstrates how OptiNet searches for the improved design of a 8/6 SRM to maximize the torque generated while conforming to manufacturing and operating constraints.

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