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In the world of electromagnetic simulations, accurate modeling of high-intensity radiated fields (HIRF) is essential for ensuring the safety and reliability of electronic systems, particularly in aerospace and automotive industries. Ansys EMA3D Cable provides a powerful solution for HIRF simulations, allowing engineers to analyze and optimize the performance of cables and electrical systems in the presence of electromagnetic interference (EMI). This tutorial will guide you through the step-by-step process of using Ansys EMA3D Cable workflow within the Discovery platform to perform HIRF simulations. Let’s get started!


Let's explore the EMA3D cable shielding effectiveness of a box demo available in the software examples. We will start by setting up the problem space and proceed with the EMA3D cable workflow. This workflow will allow us to model the interaction between a plane wave and the box, enabling us to analyze the inside electric field and determine the box's shielding effectiveness.

1- Defining the simulation domain

The video below provides a brief overview of the Discovery interface, followed by a demonstration of how to define the simulation domain:


2- Defining the plane wave source

Afterwards, it will be necessary to define the HIRF plane wave source. The following video demonstrates the process:


3- Defining and Assigning Material Properties

Assigning properties to the geometry is crucial for simulating the problem. The video below provides a demonstration of this process:


4- Creating the Field Probe

In the next step, we will create the electric field probe that will capture the fields inside the box. The following video demonstrates the process:


5- Meshing and running the simulation

Next, we will proceed with meshing the model geometry and running the simulation. The following video demonstrates the steps involved in this process:


6- Analyzing Results

Finally, we move on to analyze the results obtained from the simulation. The following video demonstrates how to view the results:


In summary, the EMA3D cable shielding effectiveness of a box demo has covered the entire workflow, including setting up the problem space, assigning properties, defining probes, and basic post-processing. By following these steps, you can gain insights into the shielding effectiveness of a geometry and evaluate its performance.

Post by Adel Benleulmi
June 27, 2023