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New MotionSolve interactive plots feature
Overview: The new MotionSolve interactive plots feature is part of "MD_Tools for Compose" extension. MotionSolve interactive plots feature enables to easily compare MotionSolve jobs results in either time or frequency domain (FRFs, FFTs, CPSDs). Pre-Requisite: MD_Tools for Compose and (if needed) MD_Tools for TwinActivate…
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New MD DigitalTwin Driver feature
Overview: The new MD DigitalTwin Driver feature is part of the new "MD_Tools for Compose" extension. MD DigitalTwin Driver intends to enable NEW users (targeting project managers, system and testing engineers) to leverage EXISTING advanced multi-discipline models for parametric simulation and related results investigation…
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New MotionSolve interactive plots feature
Overview: The new MotionSolve interactive plots feature is part of the new "MD_Tools for Compose" extension. MotionSolve interactive plots feature enables to easily compare multiple MotionSolve results in either the time or frequency domain (leveraging either FRFs, FFTs, or CPSDs). Pre-Requisite: MD_Tools for Compose and…
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New MD_Tools extension for Compose, TwinActivate and HyperWorks v2024.x
Overview: The new MD_Tools extension is available for Compose, TwinActivate and HyperWorks (both MotionView and HyperMesh clients) v2024.x. MD_Tools extension enables many useful features in the scope of Multi-Discipline System Integration (combined use of CFD, FEA, MBD, 1D-System, CEM modeling and simulation) for the…
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Velocity vector - incidence angle of aero profil - MotionView
Hi, I'm working on an aero project on MotionView. I need to return the incidence angle for a lift force calculation. The incidence angle is the angle between the Chord line of my aerodynamics profil (represented by one of the direction of a marker in my model) and the vector of his relative velocity, Vr. To calculate Vr, I…
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Shaker Post Simulation for a 6x4 Truck in MotionSolve
INTRODUCTION The shaker post test is used in the research phase to test vehicle suspensions and evaluate vehicle durability. Actuators at each wheel simulate road forces and displacements. Tests can be performed by inputting simple displacement wave forms to each actuator or by reproducing the displacements experienced by…
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Crankshaft and Connecting Rod Validation for a V6 Hybrid Power Unit in MotionSolve and Twin Activate
Overview Introduction Hybrid vehicles serve as a bridge between the long-range, reliable internal combustion engine and the efficient, environmentally friendly electric motor. While adopting many strengths of both, hybrid vehicles also create new challenges. These hybrid power units must be validated to ensure performance…
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Meaning of spline id=-1 in .log file
Hello, I'm curious if anyone knows what may cause a spline ID of -1 to be referenced in a "value out of range" warning in a motionsolve .log file. This doesn't appear to be a valid spline ID and I can't find any splines in my model with an xend = 80 either, so I'm guessing this is an auto-generated utility spline, possibly…
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Using hyperstudy for EDEM and motionview
Hello, I'm using EDEM and MotionView to simulate multibody link for shaking vessle. The motions are gived to joint like sin(Time). I want to use hyperstudy for change motions changing amplitude and frequency of motion like 2sin(time) or sin(time/2) How can I use two programs in hyperstudy?
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CATPart and CATProduct geometry importation in MotionView give to incorrect graphics
Hello everyone, I'm a new user of MotionView and I'm having issues importing geometry from CATPart and CATProduct into MotionView 2023.1. As showed below, the imported parts/products have incorrect graphics. This happen with CATPart and CATProduct. However, importing individual stp file of the CATPart gives me good…
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HELP! Steering lock error
When running any vehicle event with my model I am getting this error: ERRMES:USER [319003] Argument '0' for Steering Lock Marker 2 could not be used to identify a Marker and the simulation fails. I have tried playing with different values in the Lock Register array but still get the same error. Any guidance would be…
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Export contact pressure of every time step
Hello, I have a motionsolve simulation of a piston in a cylinder, I need to export contact pressures and node coordinates in a csv to do some calculation in matlab. I tried to export with a query but it only gets the current time step and I need all of them. How can i do it? Thanks FB
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Motor not actuating the wheels
Dear, I loaded a basic full car model with two electric motors and 4WD and perform a constant radius event. The only modification I made was to the suspension points. However, when I try to run the simulation, it always fails. Fortunately, an animation file is generated, and when I view it, I notice that the car starts…
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Hello everyone! My engineering capstone project is an analysis of vibrations in wheelchairs. What is the best way to approach this work using Altair?
I would like to know if MotionView is the best solution for conducting the analysis. If I already have my 3D CAD parts completed, can I import these CAD drawings into MotionView, create the joints, and test vibration on a virtual road? Or do I need to use the Vehicle Tools to start modeling a half-car to simulate my…
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issue with simulation
i am facing issue while running dynamic analysis on motionview.
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Setting simulation parameters with python leads to invalid model
Hello, I am currently trying to automate the creation of MBS models with the MotionView Python Interface. Everything works quite good so far and I am able to define even complex models with just a python script. However, once I try to set or access any parameter from the Model.simPara class, the model is not valid anymore…
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Wheel Loader Simulation using MotionSolve and Activate
Overview This is a co-simulation example of a wheel loader model using MotionView / MotionSolve along with Activate. The simulation: * Models the dynamic effect on the wheel loader during operation * Connects a hydraulics model in Activate with mechanical model in MotionSolve * Predicts the stress in Boom, Connecting Rod…
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Wheel Loader Simulation with romAI
Overview System simulation can support the design process by estimating the loads and stresses on critical components ensuring the desired performance. Can Artificial Intelligence (AI) help us to speed-up the study by replacing the DEM system with a more time efficient but still accurate Reduced-Order Model? In this demo…
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Defining Force data against varying pressure values for an AirSpring
A frequent question that has been asked about AirSprings in MotionView. How is the force based off a pressure determined? By looking over the .asg file (attached). The first column in the XY_DATA table contains spring heights at which measured or calculated forces are quoted in the second through last columns. In the…
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Macro To Create Weld Connections Between Flexbodies
Evaluating connections between components is crucial for design analysis in engineering. This challenge spans various domains, including welds, electrical components, adhesives, snap fits, and more. While multibody analysis can be used to validate these connections, incorporating flexible bodies into the analysis can…
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Comparison Between Component Mode Synthesis Methods
MotionView provides several advanced component mode synthesis (CMS) methods for structural analysis: Craig Bampton, Craig Bampton with Geometric Stiffness, Craig Chang, and Craig Chang with Contact. * Craig Bampton Method: This technique involves computing mode shapes by applying unit displacements at each interface node…
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Verification Of Baja and FSAE Kinematics and Compliance Using MotionSolve
Overview CHALLENGE Assessing Kinematic and Compliance of Baja and FSAE Vehicles. PREFACE As an engineering student participating in BAJA and FSAE competitions, you face significant challenges in learning on the job designing, testing, and refining a complete competition vehicle. This often means countless late nights spent…
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Verification of Baja and FSAE Loading Using MotionSolve
Overview CHALLENGE Assessing load cases on Baja and FSAE Vehicle’s. PREFACE As an engineering student participating in BAJA and FSAE competitions, you face significant challenges in learning on the job designing, testing, and refining a complete competition vehicle. This often means countless late nights spent…
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Baja and FSAE Library Overview in MotionSolve
Overview CHALLENGE Assessing Formula and Baja performance under real world scenarios. PREFACE As an engineering student participating in BAJA and FSAE competitions, you face significant challenges in learning on the job designing, testing, and refining a complete competition vehicle. This often means countless late nights…
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how to define a marker motion correclty
I try to control the motion in global X for the red cylinder (which has contact to the gray arm). "Marker 0" is fixed to the cylinder and want to give a velocity in X. But no matter what velocity i give (even when i give "0") the cylinder motion is only driven by the contact and the gravity. Is there a guideline how to…