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Mutual Coupling between two SPH sources
1] I want to check the mutual coupling between two SPH sources separated by distance of 900mm. For that i have two SPH sources oriented in Broadside direction of Patch antenna array & 45 degree in XY plane.(Note : Both the sources are oriented in Azimuth plane). if we can check the mutual coupling between these equivalent…
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I am getting an Error 99 when trying to simulate a model with CBUSH-Elements. What did I do wrong?
Hello, I am currently creating a FE-Model that has connected parts via screws and bolts. I am using a workflow that creates a 1D-Beam element for each screw and bolt. This 1D-Elemet gets split and a CBUSH-Element gets added. At this CBUSH-Element a RBE3-Spider connects the CBUSH with the inner surface. Here are my settings…
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Auto Component generation with Topology/Rectangles tool
In version 2024, if I created a Rectangle with the Topology/Rectangles tool, that rectangle would be added to the "current" Component collector if one already existed. In version 2025, it now seems that even if I have an existing Component collector set to current, that if I create a rectangle using Topology/Rectangles, a…
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Modeling of Hypervelocity Impact in Composite Laminates with Altair Radioss
This post presents an Altair Radioss solution to simulating hypervelocity impacts on composite laminate. It is based on Meso-scale modeling of hypervelocity impact damage in composite laminates from Aleksandr Cherniaev & Igor Telichev, published in Composites Part B: Engineering, volume 74 (June 2015) [1]. Figure 1: Bullet…
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Total support reaction moment
I have a simply supported model in SimSolid with four supports. Each reaction support has a reaction in only the Z direction (or essentially zero in the other two axes), and zero moment reported. However, when I select all of them in the dialog box to get a total, the resultant moment is quite large in the X & Y direction,…
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FlightStream - CCS Wing Meshing Growth Controls Being Ignored
Hi, I have been using the CCS wing meshing tool in FlightStream to create the wings and horizontal/vertical stabiliser for a light aircraft. The mesher works fine without control surfaces, but the moment I specify a control surface it seems to ignore any growth scheme settings. For example, this wing has 160 chordwise…
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New and Improved Features in Altair Radioss 2025
This article summarizes the updates introduced in Altair Radioss versions 2025 and 2025.1. For complete details, please refer to the attached presentations and the official Altair documentation. Version 2025.1 Altair Radioss v2025.1 Documentation - What's New /DAMP/FREQUENCY_RANGE is a new option that defines constant…
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Is it possible to incorporate the impact of endwinding in 2D Flux thermal study?
I am performing a 2D radial-plane thermal simulation of an electric machine. Normally, the effect of the end-windings is neglected in this study, as it is not modeled. Is there any way to include or approximate the impact of the end-windings in such a model? Is there any way to add a thermal circuit to model it? For…
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JKR v1 model and JKR v2 model
I ran two particle mixing cases in EDEM 2025 with GPU CUDA. One case used the JKR V1 model and the other used the JKR V2 model. The surface energy in V2 was set to twice that of V1 (as shown in the figure). No contact radius was specified in either case, and all other conditions were exactly the same. I expected the…
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How to Setup and Run Coupled EDEM MotionSolve Simulation with PM FlexTire™
This article explains two main approaches for defining flexible tire motion in Altair EDEM using PM FlexTire™, and provides step-by-step examples for coupling EDEM with MotionSolve. Options for Defining Flexible Tire Motion EDEM’s Built-in Kinematics, Force, and Torque Controllers Pros: Easiest to set up and fastest to…
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Runs aren't being saved in Run History. How can I change that?
I am currently working through the "Getting started with MotionView/MotionSolve" Course Module 4. As the Title says my Runs won't get saved in the Run History. I can only see them again in the Run Status window if I start another Simulation. I tried changing the Output Directory in the Run Motion Analysis window, but that…
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TypeError Collection from model.translatemark after model.duplicatemark
Hello, this code stops with a TypeError on the last command line. How to assign correctly the duplicated collection to the translatemark method? How to save the duplicated element IDs to a list? import hm import hm.entities as ent model = hm.Model() visible_elements = hm.CollectionByDisplayed(model, ent.Element)…
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FLUX & HYPERSTUDY coupling 관련 질문
Description: Kindly add description here Product/Topic Name : Kindly include the product name, version if applicable here. Also, Don't forget to tag with the product/topic related to your question. *Note from Community Team - Once you receive a satisfactory answer on your question, kindly mark your answers as "Accepted" so…
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Custom Property overwrite GUI EDEM API
Hi all! I am trying to overwrite custom properties by using values retrieved from the GUI. No matter what I try, I cannot overwrite the initalized values in the getDetailsForProperty() method. So, I want to be able to set the value for for example the custom property "Thermal Conductivity" using the GUI. Thermal…
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output of DRESP2 in topology optimization
Hi, I am calculating acceleration results at individual model nodes in a topology optimization (using EIGRA and FREQ) via DRESP2 with DEQATN, and using these as an optimization objectives. How can I write the result of the DRESP2 card to the punch file for verification? I would like to plot the DRESP2 results the same way…
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Coupled Simulation of Rock Breakage by Hydraulic Hammer Using EDEM and MBD Co-Simulation
A hydraulic hammer, also known as a hydraulic breaker, is a powerful tool attachment for excavators and other construction equipment that uses hydraulic pressure to deliver high impact blows for breaking bulk material such as concrete, asphalt, and rock. Objective: Simulating rock breakage using a hydraulic hammer with…
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Simulation error during bending test setup on merged geometry in SimSolid [Inspire v2025]
Hello, I am currently setting up a bending test simulation in Altair Inspire v2025 using SimSolid. The part consists of a hexagonal lattice structure embedded in a solid outer shell, modeled using implicit geometry and then combined with Boolean operations. After using the Combine tool to merge the lattice with the solid…
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¿Como puedo solucionar el error "hwfdmplugincore.dll: No se puede encontrar el modulo especificado"
Resulta que ya he intentado todas las recomendaciones respectivas a este post. ya se verificaron los requerimientos del sistema operativo y de hardware ya se actualizaron los controladores del GPU y de la tarjeta grafica ya se desactivo el antivirus a la hora de realizar la instalación ya se desinstaló el antivirus a la…
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Optimizing Tractor-Implement Systems with MotionSolve and EDEM
Introduction Effective tractor-implement systems are necessary for cultivating healthy crops. Traditionally, improving tractor-implement performance has relied on field testing – a process which is time-consuming, weather-dependent, and costly. In this article, we explore how MotionSolve (Multibody Dynamics) and EDEM…
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How to Calibrate PM FlexTire™ Tire Model Inputs
How to Calibrate PM FlexTire™ Tire Model Inputs Required Inputs: Tire CAD: Preferably STEP, or BDF. Physical measurements (or accurate high-fidelity FEA simulation results) at the target tire air pressure: Inflated radius Vertical force-deformation Rolling resistance (Optional) Contact patch area vs. vertical load…
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How to Run PM FlexTire™
How to Run PM FlexTire™ This example demonstrates running PM FlexTire™ using the Clay1_6x2m.dem EDEM simulation deck with the Tractor Tire, both available from the Altair Marketplace. Steps to Set Up and Run PM FlexTire™ in EDEM Open the Example Simulation Deck Open Clay1_6x2m.dem from the PM Example Files (available from…
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How to Setup Tire Motion in EDEM
How to Setup Tire Motion in EDEM There are two primary options for defining flexible tire motion in Altair EDEM using PM FlexTire™: Using EDEM’s built-in kinematics, force, and torque controllers Simplest to implement and fastest to solve. Limited in functionality compared to coupled simulations. Using an MBD solver…
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How to Pre-Process Tire Model: Option 2 Manually
How to Pre-Process Tire Model: Option 2 (Manually) In some cases, STPtoOBJ.exe may not generate the required input files from a STEP file for PM FlexTire™, or you may wish to have greater control over mesh resolution for your tire model. In these situations, you can use Altair SimLab® to manually generate the necessary…
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How to Pre-Process Tire Model: Option 1 Automated
How to Pre-Process Tire Model: Option 1 (Automated) The PM FlexTire™ pre-processor (STPtoOBJ.exe) is a Python-based executable that: Converts STEP files to BDF mesh files. Converts BDF files to Wavefront OBJ files for use in EDEM. For a full list and description of available flags, refer to Appendix D of the PM FlexTire™…
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How to Install PM FlexTire™
How to Install PM FlexTire™ The PM FlexTire™ solver and example files are available for download on the Altair Marketplace. PM FlexTire™ is available to Altair customers through the Altair Partner Alliance. To access the solver, users must first contact their Altair sales representative to request access. Once access is…
