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Why my MotionView flex body node connection cannot be saved? And another question.
Hello everyone, I have 2 ploblem in MotionView flex body, they maybe bug. 1 : Every time I open my model, it shows a error like below. It tells me the connection of a joint to flex body is empty. However, I fixed and saved it every time when I close the model. It just jump back to the old version the next time I open it.…
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How does a differential created using a coupler ensure correct gear drive?
Hello everyone, I found a realise of vehicle differential using Coupler entity in a dual axle transmission model by MotionView Assembly Wizard, it looks like below: As to my understanding, it distributes power from the input shaft between the two drive axles. To make it works correctly, the load torque should be defined on…
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Why MotionView UserSubroutine "sysfnc" returns all 0?
Hello everyone, I used a SYSFNC Subroutine in my Python subroutine script, for reading some system state values. The usage are showed below: `USER({m_mp_dth.idstring},{m_mw_dth.idstring})` def CNFSUB(id, time, par, npar, loci, ni, locj, nj, gap, gapdot, gapdotdot, dflag, iflag): ipar = [0]*3 ipar[0] = int(par[0]) ipar[1] =…
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How to output force of a User Subroutine Bushing (difined by GFOSUB)?
Hello everyone, I difined a Bushing with user subroutine GFOSUB in Python, the input is Bushing velocity and displacement and returns six-point force, like: def GFOSUB(id, time, par, npar, dflag, iflag): … return [FX, FY, FZ, MX, MY, MZ] The simulation performed correctly, but the output of Bushing force is zero. As shown…
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How can I convert section of 3D mesh to 2D mesh?
Hello everyone, I have a difficulty to convert section of 3D mesh into 2D mesh. Let me explain my situation. I have a 3D tetrahedral-meshed model and I'm performing analysis on specific section. But since I have many DOE, I often need to modify the mesh. I think It is more easier to performing analysis using a 2D…
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Flow of highly viscous fluid thorugh small annular ring.
I am trying to simulate flow between two seperate chambers connected by an annular passage (OD 17mm and ID 14mm) and two orifices of diameter 2.5 mm each (As shown in the sectional view given). I am using a fluid of dynamic viscosity 4.85 Pa.s (kinematic viscosity = 5000 cSt). In the subsequent simulations I have to reduce…
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Inquiry for a tutorial that can be used for numerical analysis of an imported 3D model (MSO coil)
Hello. I asked about the possibility of numerical analysis of MSO coils and received the following response. Below you can import the 3D CAD file of MSO coil and start working on it. The work flow will be similar to any other meshed coil workflow. Assign coil to coil/solid conductors. If you are just looking for torque or…
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Detailed modeling of coil geometry of BLDC motor
Hello. I want to analyze the performance of BLDC motor with MSO coil (torque, etc.) I wonder if it is possible to load 3D MSO file and analyze it and how to develop analysis model. Please answer related tutorial or method. Thank you.
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MotionView cannot make dynamic link to MATLAB interpreter
To community members and Altair employees Hi, I definerd a Motion in Motionview 2021, with the uesr defined properties. Script file written in MATLAB and save as .m file. When I perform simulation, The following error message appears: ERROR: Failure in call to TERM_SUB in ···\hwsolvers\motionsolve\bin\win64\numat.dll !…
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Error in accessing card image of material in batchmode
I have a script which tries to fetch the card image of the materials. I am trying to filter the materials with card image type "MATERIAL" In order to achieve this, I am using hm_getvalue mats id=$mat_id dataname=cardimage hm_getvalue mats id=$mat_id dataname=solverkeyword These command works fine when I use in GUI mode.…
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Error in accessing card image of material in batchmode
I have a script which tries to fetch the card image of the materials. I am trying to filter the materials with card image type "MATERIAL" In order to achieve this, I am using hm_getvalue mats id=$mat_id dataname=cardimage hm_getvalue mats id=$mat_id dataname=solverkeyword These command works fine when I use in GUI mode.…
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Inspire PolyFoam 発泡成形シミュレーション 日本語トレーニング資料
発泡成形シミュレーションシステム Inspire PolyFoamは、最新の直感的なユーザーインターフェースを使用して、軟質発泡成形部品や硬質発泡パネルの製造性設計（DfM）を効率化するための検討を行うことが可能です。このページから発泡成形解析の日本語トレーニング資料およびモデルデータをダウンロードが可能です。 このトレーニング資料をベースにInspire PolyFoamをご活用いただきたく存じます。 トレーニング内容： * ・インターフェース概要 * ・発泡解析のワークフロー * ・発泡パート * ・ノズル * ・ツール * ・プロセスパラメータ * ・解析実行 * ・演習 *
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How to display velocity using a tracking system?
Hello, I want to analyze a fluid velocity in a moving rigid wall. I use a tracking system (applied on the rigid wall) on HyperView to display the relative displacement of the fluid, but the option "use tracking system" is not available for the velocity. How could I display the relative velocity? Thank you in advance.
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Add a Spot on Cylindrical Face with Altair SimSolid
This video demonstrates how to use the Spots on Cylinder tool in SimSolid. Spots are used to create local areas where connections or boundary conditions can be applied. The Spots on Cylinder tool allows for creation of these local areas on the inner or outer faces of cylinders. Watch this workflow to see how to: * Isolate…
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Modeling Liquid Bodies in Altair SimSolid
This video demonstrates how to apply a liquid body to an assembly in SimSolid. Watch this workflow to see how to: * Pick wetted faces using Clip with plane tool * Add automatic connections * Create and run modal analysis * Review results of modal analysis with Liquid body https://www.youtube.com/watch?v=L7aYlNAczYA
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Why the result of free size optimization become like this?
I am doing the free size optimization with sandwich structure in order to minimize mass of the structure. And the way I create the sandwich structure is create the ply first and then use the STACK to create the laminate and use Symmetric option to define Sandwich structure. When I create the ply, the parameter that I need…
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While doing a snapfit analysis in optistruct, I have given an enforced displacement to one component. While running it in simulation, both the components starts moving simultaneously
Please refer to the file attached for reference. As it can be seen that the horizontal beam starts moving before coming in contact. Can someone please help regarding this.
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How to do Mesh control in EDEM
how can we control the meshing of the imported cad geometry or can we export the meshed cad geometry from EDEM
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.bdf file for ADAMS Max-flex
I wanna create .bdf file to use in adams max-flex for non-linear analysis. I don't know how to do it. Can anyone pls help me
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Can HyperView draw stress-strain diagrams?
I want to draw a stress-strain diagram in HyperView. Is it possible to draw?
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some graphics troublewith the models.
I have the student version of Crash analysis and radioss software of hyperworks. When i import any CAD model . it is not showing the model on the screen. but when i minimize the tab and then maximize it, the model is visible on the screen. even incase if i import one model, i cannot control it with my mouse as it does not…
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How composite stress in OptiStruct compute? What is the equation behind it?
I am working on free-size optimization in OptiStruct with composite material. And I use composite stress as one of my responses and I have to constraint it to have a safety factor more than 1.5. So, I would like to know how OptiStruct compute the composite stress to find the allowable composite stress that I allow it to…
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FLD strain time history in Hyperview
Hello all, I am currently using Hyperview to evaluate an Abaqus simulation. It is about the evaluation of the main deformation changes in the forming limit diagram. I would now like to output the strain paths at individual points of my deep drawn part in the FLD. For this purpose, the path of an element in the strain space…
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ERROR #1461 in the input data: Card "DLOAD" is not allowed for this subcase type.
Hi all, I am trying to do a nonlinear transient heat transfer analysis. I referred to example analysis (https://2021.help.altair.com/2021/hwsolvers/os/topics/solvers/os/manifold_nonlinear_transient_heat_transfer_os_example_r.htm) and created my model accordingly. As you can see from pics, the subcase card in my model is…
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Temperature dependent material model
Hi all, I am trying to create a transient heat transfer analysis with shell elements. The material in the model is steel and the following properties are temperature dependent: thermal conductivity, specific heat capacity, thermal deformation, elastic modulus and yield stress. What would be the suitable RADIOSS material…
