A space for simulation related technical resources and discussions.
Skip Voltage Update Flag: This article aims to present usage of the “skip voltage update” flag in 2024. Let us consider a simple buck converter as an example to understand this feature. Here, we have made two similar buck converter circuits in which one circuit is with ideal switch and the other circuit is with thermal…
Introduction Flutter is a dynamic aeroelastic phenomenon in which the aerodynamic loads on a flexible body couple with its natural modes of vibration to produce oscillatory motions with increasing amplitude. This may lead to catastrophic structural failure and hence structures exposed to aerodynamic loads must be carefully…
Learn how to accelerate your power converter design with automated design exploration using PSIM and HyperStudy. This tutorial walks you through linking the two tools to optimize system parameters and analyze their impact on selected Key Performance Indicators (KPIs). For this workflow, you will need to install: PSIM…
Electromagnetic losses, computed by Feko, become volume heat loads and surface heat fluxes in SimLab. There, OptiStruct is used for the subsequent thermal simulation followed by thermal stress and deformation. This tutorial explains the detailed steps in SimLab. It is intended for Feko users who are not familiar yet with…
In this white paper, the jamming of a radar station and of a communication link by a drone or a swarm of collaborating drones is investigated. This involves ultra-wideband antenna design in Feko and propagation analysis over terrain in WRAP.
This article outlines the steps for importing Altair WinProp indoor database (*.idb) files into Altair SimLab. Indoor databases can be exported from WallMan to the following proprietary WinProp formats: *.idb file: A vector database (binary) for Altair WinProp indoor scenarios. *.ida file: A vector database (ASCII) for…
Overview Attached is the source code for the Spray Heat Conduction with regular particles and Temperature Update, using version 3.3 of the EDEM API. The source code consists of: CPU API code updated to version 3.3. CUDA API code supplied as SprayConduction_v3_3_0.cu. This model is a combined Contact Model and Particle Body…
Are you using PSIM v2025.0 or earlier and face this strange torque ripple effect from the Flux or FluxMotor model? This is attributed to the fact that the .mat file contains a non zero initial angle. The .mat uses the mechanical rotor angle and you can be found the rotor angle if you open it. However, PSIM v2025 or earlier…
This article discusses how to simulate a delta-connected PMSM in PSIM, but first let me explain some differences of these two topologies. In a star (Y) connection, each phase winding is connected between a line terminal and a common neutral point. As a result, the phase voltage is lower than the line voltage by a factor of…
The variable editor in Flow Simulator (FS) is an easy yet powerful way to change many inputs quickly. If many model inputs use the same number (a hole diameter for example), consider using a variable to parameterize the input. Variables can be simple numeric input or an equation that can calculate an input based on other…
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