A Grounding Application | September 9, 2020

In this application note, Dr. K.M. Prasad, Senior R & D Engineer from Integrated Engineering Software discusses the magnetization of a virgin magnetic material into a permanent magnet in INTEGRATED’s magnetic solver AMPERES.

Simulation of permanent magnetic objects in a customized fashion | December 12, 2018

In this application note, Dr. K.M. Prasad, Senior R & D Engineer from Integrated Engineering Software discusses the magnetization of a virgin magnetic material into a permanent magnet in INTEGRATED’s magnetic solver AMPERES.

Optimal design of an Actuator by Parametric Optimization | November 5, 2018

The following example demonstrates how to use Parametric and Find Optimal Parametric Result dialog to find the optimal design of an actuator. The optimal actuator configuration will have the best force per area ratio for a given current density.

The following example demonstrates how to use Parametric and Find Optimal Parametric Result dialog to find the optimal size of magnets and rotor configuration to maximize the torque of a cycloid permanent magnetic gear.

Optimal design of a Permanent Magnet Generator by Parametric Optimization | December 12, 2018

The following example demonstrates how to use Parametric and Find Optimal Parametric Result dialog to find the maximum torque of a permanent magnet generator and the angle of the magnet at which the maximum torque is produced. The final result is verified graphically by plotting the torque vs angle using data from the parametric run.

Boundary Element analysis of cogging force in linear motor | June 25, 2018

A linear motor is an electric motor that has had its stator and rotor "unrolled" so that instead of producing a torque (rotation) it produces a linear force along its length. Iron core linear motors have traditionally suffered from a phenomenon known as cogging. This is seen as a periodically varying resistive force and it is caused because the motor coil has preferred positions in relation to the magnet track and resists attempts to move it off these preferred positions. Cogging limits the smoothness of motion systems because the force generated by the motor must change with position in order to maintain a constant velocity. The cogging of the motor must be minimized for high precision applications because it is an undesirable component for the operation of motor.

When a model has mirror symmetry about a plane, it may possible to apply Symmetry or anti-symmetry condition to reduce the problem size in half. In addition to the existence of the mirror symmetry in the geometry, there should be symmetry or anti-symmetry in the source (excitation) to apply the symmetry or anti-symmetry condition. The possible sources in the magnetic solvers are the Electric current coils, permanent magnets, and the impressed magnetic fields.

It is well known that CAD and CAE have different requirements for modeling. For CAD, models are often created to demonstrate a concept or to break down into parts for manufacturing. For CAE simulation, a model should have proper shared boundaries between different regions, should be closed – sometimes called “water-tight” and should not have small gaps or details present that are not significant to the physical operation of the design.

The challenge for a CAE analyst is usually to detect and correct the model from CAD before using the simulation tool. Making the appropriate corrections enables the simulation tool to focus on the physically significant part of a model and avoids numerical errors caused by improper overlapping or intersecting.<

Integrated 3D software tools provide detection capabilities for the most common types of issues that can arise for the simulation.

Magnetic Shielding Optimization | August 8, 2017

Continuous exposure to high electro-magnetic fields (EMF) generated by sources such as busbar connections to transformers, cabinets, high voltage overhead lines, etc. can impede normal function of electronic equipment. For example, high EMF can cause broken strips, communication problems and even hardware degradation. When re-arrangement of substation equipment is neither practical nor feasible, shielding in the immediate vicinity around EMF sources is implemented.

This article by Amandeep Bal of Integrated Engineering Software in Canada discusses such shielding in a magnetic resonance imaging (MRI) model. It also presents results of magnetic field analysis inside and outside of unshielded and shielded electromagnets in free space using a Boundary Element Method (BEM) solver.

Applications in high voltage transmission require the analysis of electric fields that cause corona discharge, dielectric breakdown in insulators, and electromagnetic interference. The insulators that support the power lines are associated with complicated conducting structures. The simulation of a complete transmitting tower along with the power lines is fundamental for the estimation of the electric field levels at n arbitrary point on the insulators, corona rings, and in their surroundings. In this article, we will model a 3-phase, 115 kV transmission tower using a 3D electrostatic field solver.