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Problem with skateboard Tutorial in HyperWorks 2024.1
Dear Professionals, I am currently trying to complete the "Composite optimization of a skateboard with OptiStruct" Tutorial in HyperWorks 2024.1 Now since the Tutorial is written for a older Version it is a little bit more difficult but I managed up until point 3.3.3 Check-run and Phase 2 Optimization Run (The pdf of the…
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Save invalid elements to user mark?
Hey, every time I'm exporting my solver deck files of my RADOPT opimization the question appears: Save invalid elements to user mark? Yes or No I have found a Tcl command hm_getusermark elems does this show all the elements or just the invalid ones? Because I get a huge number of elements if I type in that command. So my…
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Internal programming error
Hey, every time I run a RADOPT topology optimization the Solver fails and I get this message: *** INTERNAL PROGRAMMING ERROR *** in file "datasetFtoC.c", at location # 488. ERROR DATA: igicmt -1234 Dset ID out of range what can I do? Thanks for your help!
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Implementing supervisory control via DLL in PSIM (real-time synchronization issue)
Hello, I’m trying to implement a supervisory control system using optimization codes in PSIM to generate the reference signals for converters in the simulation environment. The optimization code is written in C++ and implemented as a DLL block in PSIM. I’m using the Gurobi solver to handle the energy management…
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Problem with importing sizing.fem file in Hypermesh
Hi, I did a free size optimization of a composite model (with optistruct) and when I try to import the sizing.fem file Hypermesh instantly crashes. I'm using a student license and the 2024 version. How can I solve this problem? Thank you in advance.
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Analysis and Optimization of an Automotive Cradle using Single Finite Element model with Multiple At
Analysis and Optimization of an Automotive Cradle using Single Finite Element model with Multiple Attributes i.e. NVH, Strength and Fatigue https://us.v-cdn.net/6038102/uploads/EH692AS8KOFY/singlemodelmultipleattributeworkflow.pdf
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Hyper study - stuck in task evaluation
hi all, I am working optimizing an IPM motor designed from Fluxmotor. In the process of task evaluation, i get my write, execute and extract to be running succesfully but after a number of runs,- some times after 92% or 20% in the process of evaluation, the system gets stuck and there is no progress in the evaluation hence…
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Hyperworks 2022.1 run options analyze to optimization
Hi, I'm doing the tutorial: Track 2: Design Composite Structures with Simulation 3 Composite Optimization While doing the free-size optimization, changing the run options from analyze to optimization seems possible. I tried with 2022.1, and it's clearly not possible in this menu. I was looking at the Solver Options but I…
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Radioss optimization error
Hi, I'm trying to run an simple toy topography optimization problem in Radioss where a pressure is applied dynamically to a square plate (solid elements). When running the RADOPT file I receive the following error. How can I understand what is happening here? *** ERROR # 4306 *** No ESL is generated by SUBCASE 1 to do…
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Fast-Track eDrive Efficiency Maps in PSIM | Webinar June 2025
Fast Track eDrive Efficiency Maps in PSIM This webinar walks through an end-to-end process for generating efficiency maps in PSIM - both at the inverter level and system level - by leveraging its seamless connection with Altair Flux. We'll also cover strategies and tips for making sure all operating points are hit…
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Lunar Module Landing Simulation in MotionSolve and Twin Activate
INTRODUCTION Developing a lunar lander is a challenging task, as the Odysseus lander proved. Landers must be lightweight, while withstanding the stresses of the rocket launch and landing. Under ideal conditions, the lander would achieve zero velocity both vertically and laterally as the vehicle touches down. Practically,…
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Using of composite failure constraint in phase 2 size optimization.
Hi, I am using size optimization to create a laminate which is subjected to an out of plane load. I want to use a composite failure constraint to determine the minimum size that the different directions of plies need. However, during this stage of optimizing, the composite failure constraint is sensitive to the location…
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Best alternatives to overcome error # 7004 - Free-size optimization with OptiStruct
Hi there, I am currently doing a master thesis project with the main goal of creating an optimized composite laminate version for a specific structure. In my case, I created, in a manual approach, a initial standard laminate (ply-based) for the component and now I would like to optimized it, particularly in terms of mass…
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Type 3 Controller Optimization - Part 2: Phase Margin and Crossover Frequency
In the previous article we described the setup for the optimization of a buck converter with a Type 3 Controller. This workflow uses measurements from the output waveform to qualify the controller. But, what about the frequency domain characteristics? In this article we’ll show how to add Phase Margin and Crossover…
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Flux - SimLab Tutorial: 2D DOE and Optimization of PM Motor
Introduction Permanent magnets play a crucial role in modern electromechanical devices, ensuring efficient performance in applications ranging from electric machines to sensors. PM motors are now the most used motors in the automotive industry. Optimization is key to improving performance. Recent advancements in simulation…
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Hypermesh optimization methods, freesize, solvers DSIZE STACK or DSIZE PCOMP
Description: I wonder what's the difference between the two solvers DSIZE STACK and DSIZE PCOMP in the definition of the DSIZE card for the freesize optimization. Which solver sould I use? And why?
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Type 3 Controller Optimization - Part 1
In this article we will explain how to set up the optimization of a Type 3 Controller with PSIM and HyperStudy. Note: Part 2 has been uploaded and adds Phase Margin and Crossover Frequency to the optimization. The first thing we need to do is to define our variables (inputs) and goals for the optimization so that we can…
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Peak Current Mode Control (PCMC) on Buck Converter - PSIM
This page discusses the Peak Current Mode Control of a Buck Converter and explores how its operation can be automated with Altair HyperStudy. If you have not experimented with HyperStudy before, you should read this article as a first step. What is PCMC and what are its advantages compared to other control techniques? Peak…
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How do I create design skeleton sheel under non-design shell?
Hello, community, I am working on an academic project about structural optimization in an aircraft fuselage. This project, inspired by the publication DOI 10.1007/s00158-015-1364-3, deals with structural optimization for shape maintenance. In the article, the author mentions that the model consists of a fuselage skin with…
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Hydraulic Lift Gate Analysis & Optimization in Inspire
INTRODUCTION Hydraulic lift gates are used for loading and unloading goods into trucks, making it easier for drivers to transport heavy goods. Optimizing performance and efficiency is crucial for staying ahead in hydraulic lift gate design. This article explores how engineers can utilize multibody dynamics (MBD) and…
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Rover Design & Analysis using Altair Inspire
Preface Engineering students designing rovers for competition face challenges in designing lightweight, efficient, and effective vehicles, whether part of NASA’s Lunabotics, the University Rover Challenge, the International Rover Design Challenge, or another challenge. One of the most significant problems student often…
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Optimization
Can I setup 12 symmety plane to optimize the structure as above picture? I find only 3 symmetry plane can be used. Can I setup contact between gears as load to optimize it? Thanks! Sherlock
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Ensuring support of non-design regions in topology optimization
Hello, I want to run a topology optimization (TO) which is setted up in SIMLab 2024. For TO i use following seetings: Design Space constraint: minimum thickness 6mm Overhanging Constraint 45deg angle tolerance 90deg distance tolerance 1mm Response constraint: massFraction —> Upper Limit 0.6 Response —> minimize Static…
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DOE and Optimisation
Hello, I'm trying to run an optimisation within a DOE under Hyperstudy/Hypermesh. Initially I've tried running the optimisation inside the DOE tool under Hypermesh but that was giving me way too many runs (I believe it was creating a run for each iteration of my variable, which was not exactly what I wanted) I ran an…
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Polynurbs problem - slow and grafik problems with polynurbs Inspire 2025 Win 11
Hey, I'm struggling with the polynurbs action after the optimization. Inspire is running well with optimisation until I want to edit the result with the Polynurb tools. Then my computer is rapidly slowing down and the grafics struggling to I point were I cannot work on. As soon as I ESC the polynurbs tools, the program is…
