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Issue with plotting Ackerman percentage
https://us.v-cdn.net/6038102/uploads/5M48ZK6VCZFG/screenshot-2025-10-02-212649.png My Ackermann % vs. steering-wheel angle plot in HyperGraph shows up blank. Is there a specific way to generate this plot? Do I need to add the Ackermann equation as an output expression to see the results?
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Exporting and Reusing a Fully Developed Suspension System Across Vehicle Models
In general practice, when you want to export and import a fully developed suspension system into either a complete vehicle model or another build with the same architecture, the recommended approach is as follows: Export the system via: File > Export > MDL Definition Select the system Choose the directory to export the…
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FSAE Rear Rockers
Hello, my FSAE team is trying to simulate a push rocker system in the rear. What would be the best way to make this because the wizard only generates a pull system for the rear and won't let me not generate steering for the front so I can't use that as the front
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MotionView/MotionSolveによる車両運動解析ウェビナー
初心者から上級者までを対象に、Altair MotionView / MotionSolveを活用した車両モデリングのワークフローと機能をデモ形式でご紹介します。 主なトピック： アセンブリウィザードによるハーフ／フル車両の組み立て 駆動・非駆動イベントの標準設定 イベント別の自動ポスト処理 設計データの簡略化とアーキテクチャレベルでの検討 キネマティクス＆コンプライアンス最適化 剛体・変形可能なタイヤ／路面モデルの選択肢 ノーダル／モーダル柔軟体の統合 リアルタイムシミュレーション スクリプトやユーザーアセンブリライブラリによるカスタマイズ Altair Composeを用いたプロセス自動化 対象業界： 自動車 建設機械・農業機械…
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Deactivate force and activate Contact in Motionview/Motionsolve.
This is the template i am using to simulate events. But the simulation is not running fully when i run online and it terminates the run with error - 'function' object has no attribute '__bases__'. can anyone help me to understand the real issue? The result i m able to get till 0.8 sec. Note: All strings are properly…
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Regarding the Motionview result display issue
① In Motionview, I used mechanical tools to generate two bearings and solved them in Python format. In Hyperview, I can see the two bearings, but the models of my other objects are not displayed. However, if I submit on the Motionview interface, I can see the models of my other objects. How can I solve this problem? ② I…
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May I ask about the issue of error when opening Motionview software
Every time I open Motionview, there is an error message and a pop-up window. What is the problem? How to solve it? But the software can run normally https://us.v-cdn.net/6038102/uploads/MYM0DXIVCDR2/1.png Another issue is that when Motionview is coupled with Hyperstudy, this error pops up. Is it a problem with where I…
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CNFSUB – LOCI/LOCJ always return near-zero or invalid values
Hello everyone, I am working on a gear contact simulation in MotionSolve using a user-defined CNFSUB. According to the documentation, the arrays LOCI/LOCJ should provide the coordinates of the contact point on the two bodies (expressed in the local marker coordinates). However, in my case they consistently return…
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MV-1000: Interactive Model Building and Simulation
Dear team, I am not able to find the files located in the Altair installation directory mentioned in the MV-1000: Interactive Model Building and Simulation tutorial. Could you please forward these files if available? File names: - trunk.hm trunklid.hm
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MotionSolveでシミュレーションした後，EDEM連成でContact設定をそのまま引き継げますか？
現在、アルミ製の粒状ダンパを自由落下させるシミュレーションを行っています。 マニュアルに従って Contact 設定をしていますが、まず容器がゴム床に衝突し、その直後に内部の圧縮版が容器下部に接触するためか、応答が安定しません。特に、地面との 2回目の接触時に構造全体が転倒してしまうような挙動を示します。 私としては、まず MotionSolve 単体（粒子を充填していない状態）**で粒状ダンパを自由落下させ、現実的な挙動を再現できるようにしたいと考えています。その後、EDEM 連成で粒子を追加しても、同じ Contact 設定でシミュレーションを続けてよいかをご教示ください。…
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MotionSolve: static + linear
Hi I notice something weird when running static + linear to get the vibration modes of the aircraft on ground. The aircraft is free to move. The contact comes through fiala tires on the road. So the solver calculates the static weight on wheels condition and then calculates the eigenvalues. I have pitch, plunge and other…
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Request output in motionsolve 2025
hello, How I can find the definition of request output in Motionsolve? Can I add some personal requests? https://us.v-cdn.net/6038102/uploads/Z5WEJZPS3SOM/image.png
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MotionView/ MotionSolve
Dear Team, I am trying to simulate the door slam analysis using Motionview/ MotionSolve referring to the tutorial from Flexible body dynamics- "MV-2021: Simulate an Automotive Door Closure Event". I am getting an error while running the analysis- Error:- "Unknown function "DY"...Math parser error evaluating Lock…
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감쇠비의 고정 조인트나 부싱 적용에 대한 문의
모션솔브에서 고정 조인트나 부싱의 감쇠비를 입력하고 싶습니다. 하지만 감쇠비를 입력할 공간이 없어서 감쇠 계수를 입력해야 합니다. 다물체 동역학 소프트웨어에서 감쇠 계수를 계산하는 방법이나 감쇠비를 입력하는 방법을 알고 싶습니다. (또한 타워 등의 구조 감쇠를 입력할 때는 감쇠비만 입력할 수 있었습니다.) 감쇠 계수를 계산하려면 질량과 고유 진동수를 알아야 하는데, 조인트에 적용되는 컴플랜트나 부싱에 어떤 질량과 고유 진동수를 입력해야 하는지 모르겠습니다. (전체 시스템의 각 방향의 첫 번째 모드인가요? 두 번째 모드인가요? 아니면 연결된 두 요소 사이의 모드인가요? 질량은…
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Query to apply Bushing or Complant for Fixed Joint in MotionView/MotionSolve
Query to apply Bushing or Complant for Fixed Joint in MotionView/MotionSolve I want to input a damping ratio for a fixed joint or bushing in motionsolve. However, there is no space for inputting a damping ratio, and I need to input a damping coefficient. I would like to know the approach used to calculate the damping…
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Webinar - MotionView/MotionSolve 2025.1 for Vehicle Dynamics
https://www.youtube.com/watch?v=Fp6ftykS3jw This webinar is for Automotive, Off-Highway, Powersports, Heavy Truck, Land Defense, Last Mile Delivery industries, mainly: - CAE engineers responsible for chassis durability & fatigue analysis - Design & Release engineers responsible for chassis performance attributes -…
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ATV and UTV Library Overview in MotionSolve
https://us.v-cdn.net/6038102/uploads/S8OACDMT4BOT/soft-soil.gif Overview: As an engineer in the UTV and ATV industry, you're tasked with designing robust, high-performance vehicles capable of thriving in the most demanding off-road conditions. From optimizing suspension geometry and frame integrity to balancing weight,…
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EDEM Simulation of Rotovator
Hi Team, Do we have any tutorial videos/documentation for setting up a rotovator (similar agricultural case)?
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Upcoming Altair Community Events - Join Us!
Hi Everyone, We have some exciting sessions lined up for August and the rest of the year. New sessions are also added to the exciting Power Conversion and Magnetic Chat series. Register Now! https://us.v-cdn.net/6038102/uploads/OK6HDK5P0U15/community-powerconversionchatseries-1140x150-1.jpg Summary of our Upcoming Events:…
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Leaf Spring Builder - Composite Spring
Hello, I'm trying to build a leaf spring model with composite material in MotionView, but using the Leaf Spring Builder, I noticed that only isotropic materials is allowed. I wonder if it's possible to create a composite leaf spring model? Best regards, Eduardo Miorelli Rech
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Motion Solve Installation
Hello, I need to perform a dynamic stress simulation in which the entire suspension system of my prototype is subjected to stress on the chassis, and I am having difficulty installing the software. At first, I was trying to install Motion Solve, as I thought it was the best for what I need (I'm not sure if this is the…
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Regarding the generation of loaded super elements in Hypermesh
I want to create a super unit for multi-body dynamics students, with a concentrated force of 1000N in the middle of the super unit and two end holes as hinge points with multi-body dynamics. I am a bit confused now. Under the CMSMETH card, should I choose Preload or LoadSET? If Preload is chosen, will SPCID be based on…
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Errors in events analysis
Hello everyone, when I was performing vehicle simulation, I simply rotated a section of uphill road to create a downhill road condition, and then the simulation log displayed the following error message: WARNING: SolveForGivenRHS failed (NaN encountered)! Residual idx=2574, Phi 0 ERROR: Static analysis failed at time = 0…
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Torque 적용 시 동작불량
풍력발전기 모델을 구현하여 각 바디를 FIXED 조인트로 연결하고, 베어링 및 회전부에 REVOLUTE JOINT로 연결하였습니다. 입력은 블레이드에서 전달되는 공기역학적 힘 및 중량, 리액션포스 등을 6개 힘과 토크로 입력하였고, 발전기에서 전기에너지로 전환되는 부분 또한 반대방향의 토크로 입력하였습니다. 풍력발전기의 지지구조인 타워는 유연체로 구성하였는데요. MOTION으로 강제 회전을 적용하면 동작하나 일반적인 토크를 적용하면 동작하지 않습니다. 토크가 적용되는 파트의 MASS와 INERTIA는 모두 적절하게 입력되어있으며, 좌표계도 적절하게 설정되어 있는 것을…
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Announcing a New Webinar - MotionView/MotionSolve 2025.1 for Vehicle Dynamics
Join us for an insightful webinar as we delve into the latest advancements in MotionView and MotionSolve version 2025.1, two powerful tools designed to enhance your simulation and analysis capabilities. Our expert speakers will lead participants through engaging sessions, highlighting the capabilities of Altair’s Multibody…
