Application Pages

Position and speed of metal components measured with variable reluctance sensor

Variable reluctance sensors are used to measure position and speed of moving metal components. This sensor consists of a permanent magnet, a ferromagnetic pole piece, a pickup coil, and a rotating toothed wheel.

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Power Transformer Failure and Challenges in the Transformer Design

Transient overvoltages due to lightning strikes, switching operations in circuit breakers and ferro-resonances can cause a non-linear voltage distribution over the transformer windings, high field strengths between turns, and eventually lead to destruction of the winding insulation. (This was originally presented at Engage 2015).

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PWM analysis of an Induction Motor

The PWM feature of MotorSolve IM is designed to assist the machine engineer to gauge the performance of induction motors for realistic drive circuits. To this end, 3-phase bridge circuits with delta and space vector modulation (with Wye/Delta connection) options are offered that allow the user to calculate a large array of entities and compare results with ideal drive simulation. The methodology and some examples of results using PWM simulations are presented in this application page.

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Rare Earth MRI Magnet Assembly

Magnetic Resonance Imaging [MRI] is a non-invasive mechanism for assessing the nature of materials. Whether one desires to monitor the fat content in a cookie mixture, or review potential structural damage to a human joint, MRI equipment is readily available.

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Rectangular Slot in a Thick Plate: a Problem in Non-destructive Evaluation (T.E.A.M. Problem 15)

In order to detect flaws, sensor problems require the accurate calculation of induced eddy currents. MagNet for SOLIDWORKS AC Time Harmonic solver automatically calculates these eddy currents. The results presented compare published experimental data demonstrating the accuracy of the software.

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Reducing the Eddy Current Losses in Permanent Magnets by Segmentation

In this example, MagNet is used to investigate the effect of segmentation on a surface mounted permanent magnet machine. Historically, very thin insulation layers, which were hard to model and mesh in a FEA environment, were employed to separate the permanent magnet segments. Fortunately, this no longer needs to be the case, as MagNet provides a very simple method to model the insulation layer by using a perfect electric insulator boundary condition.

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Reducing the start-up transients of an induction motor

There are a number of techniques to significantly reduce the duration of start-up transients using the right initial conditions with MagNet. These powerful features are applied to the simulation of an induction machine. These methods can all be automated by scripting as well.

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Response Surface Modeling of an Actuator in Simulink®

A response surface model (RSM) of an actuator is created using MagNet, and then placed in a system model created in Simulink. The movement of the plunger in this actuator is then simulated in Simulink using the RSM.

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