CATI Tech Notes

SOLIDWORKS Tips and Tricks and Info on Professional 3D Printing with Stratasys from the Technical staff of CATI

SOLIDWORKS: Simulation – Use Those SOLIDWORKS Functions!

Simulation – Use Those SOLIDWORKS Functions!   SOLIDWORKS functionality can make life easier when working with Simulation.  You probably know them well, so why not use those familiar functions to your advantage?  Let’s look at a few. Simulation-specific configurations Interference detection check for simulation-ready geometry Split lines for boundary condition application   Configurations   Editing the geometry before setting up a simulation is usually necessary. By setting up a new configuration for the analysis, changes made there won’t affect the original design. This allows for several “what-if” scenarios. Notice in the two screen shots below how the “Default” configuration contains all the assembly components, whereas in the “For analysis” configuration the assembly is simplified

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Posted in Daily Dose.....of SolidWorks Support, Design Validation, Simulation, SOLIDWORKS Tips and Tricks

SOLIDWORKS: Making Sense of Simulation Meshing- Part 2

Making Sense of Simulation Meshing- Part 2   Welcome to part 2 of the 3 part series about mesh considerations in SOLIDWORKS Simulation. In part 1, we covered some high-level considerations and adaptive meshing. If you missed part 1, view it here. In this post we will discuss some mesh quality tools SOLIDWORKS Simulation has to offer. In the last post we will discuss different types of elements and meshes for Finite Element Analysis (FEA, FEM).   Moving on, knowing if your FEA mesh is a good quality is essential to accurate studies using SOLIDWORKS Simulation. Luckily, SOLIDWORKS has supplied us with some great tools for interrogating the mesh too

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Posted in Design Validation, Simulation

HELP! Which SOLIDWORKS Simulation do I need?

  Since SOLIDWORKS has a few Simulation based promotions, we thought now would be a great time to explain how SOLIDWORKS Simulation can help solve your product development challenges. Our 3DVision Technologies Team is hosting a great Webcast to discuss a number of powerful simulation tools within the SOLIDWORKS suite of products.   Robert Warren, CAE specialist with 15 years of industry experience, will demonstrate the capabilities of the SOLIDWORKS Simulation Suite so you can determine which package best fits your needs.   Event Information: Thursday, June 8,2017 1pm – 2pm Central Time >>Register for this Webcast   Topics Covered Include: First Pass Analysis Fatigue Natural Frequencies Design Optimization Large Deformation Linear and Non-linear Materials

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Posted in Design Validation, General Info, Simulation

SOLIDWORKS: Flow Simulation Trajectory Plots

Flow Simulation Trajectory Plots   Trajectory plots in SOLIDWORKS Flow Simulation can be very informative for flow visualization; however, it is sometimes tricky to get what you want when using them with external flow results. I’ve found that for the starting point reference, sketches with patterned lines will generate a nice set of trajectories. Also, using planes that are parallel to the dominant flow direction can be useful. This reference selection choice is counter-intuitive but produces surprisingly good results.   Below is an example showing a tanker truck moving down the highway at 65 MPH in a 25 MPH crosswind. The large blue arrow is the resultant velocity vector for the

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Posted in Daily Dose.....of SolidWorks Support, Simulation, SOLIDWORKS Tips and Tricks

SOLIDWORKS: Making Sense of Simulation Meshing – Part 1

Making Sense of SOLIDWORKS Simulation Meshing – Part 1   As an Application Engineer specializing in SOLIDWORKS Simulation, I often get asked, “How do I know if I have a good mesh?” The simple answer is, it’s not so simple. This is the first blog in a 3 part series that I will be posting about meshing. In this blog we will discuss meshing considerations for study types and purposes as well as mesh convergence considerations. The next two blogs in the series will talk discuss mesh quality tools, what they mean, and the types of meshers.   Meshing is a term for the process of discretizing CAD geometry. For the

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Posted in Design Validation, Simulation, SOLIDWORKS Tips and Tricks

SOLIDWORKS: Simulation Load – Torque Vs Moment of Force

Simulation Load – Torque Vs Moment of Force   What is the difference between torque and moment of force? Depending on who you talk to, you will get different and confusing answers. The truth is that moment of force (often known simply as moment) and torque are equivalent. Not so in SOLIDWORKS Simulation, though. We will investigate the differences between the two.   I encountered a small issue with torque loads in simulation and after inspecting the help file, I was still confused. I spent some time to clear up this issue and hopefully you will find this information useful.   The issue that started this quest for understanding was

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Posted in Daily Dose.....of SolidWorks Support, Simulation, SOLIDWORKS Tips and Tricks

SOLIDWORKS: Blended Curvature Based Mesh in SOLIDWORKS Simulation

Blended Curvature Based Mesh in SOLIDWORKS Simulation   Meshing a part appropriately might be tenuous at times, but it is certainly a lot easier in SOLIDWORKS than just about any other software. We don’t want to set the expectation that meshing is a problem for SOLIDWORKS. Getting a good aspect ratio around the smaller geometry can drive you and your computer a bit crazy, especially if you don’t know the smallest size of your geometry. SOLIDWORKS introduced the blended curvature based mesh in SOLIDWORKS 2016. Let’s take a look at the user interface:     It looks very similar to the curvature based mesh, including the options of max/min element size,

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Posted in Design Validation, General Info, Simulation

SOLIDWORKS: Flow Simulation Mesh Visualization Changes Implemented in SW2016

Flow Simulation Mesh Visualization Changes   In SOLIDWORKS Flow Simulation, accurately and efficiently designing the mesh to capture the solid/fluid interface is critical to producing quality results. Doing so can be a challenge, so it’s important to see the mesh at the boundary to support further refinement, as needed.   Flow Simulation 2015 and previous releases allowed visualizing the mesh using “Mesh 3D View”, a tool that was a bit cumbersome to use and didn’t produce a clear view of the interface, as in these plots of fluid and partial cells.       Enter Flow Simulation 2016 and its new mesh view functionality, which has eliminated Mesh 3D View.

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Posted in Daily Dose.....of SolidWorks Support, Simulation

SOLIDWORKS: Task Scheduler for Simulation Runs

Task Scheduler for Simulation Runs   By now, must people know the benefit that the “Run All Studies” and “Run Specified Studies” that SOLIDWORKS Simulation provides. These functions are limited in that they only work for a single part/ assembly file with or without different configurations. However, what happens when there is more than one file with multiple studies that need to be solved overnight? To accomplish this, we can turn to the often underused SOLIDWORKS Task Scheduler. Task scheduler allows users to automate a multitude of repetitive tasks including importing/ exporting files, Updating files, printing, rendering, and of course, updating Simulations in SOLIDWORKS.   In order to run SOLDIWORKS

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Posted in Daily Dose.....of SolidWorks Support, Simulation, SOLIDWORKS Tips and Tricks

SOLIDWORKS: Meshing Errors in SOLIDWORKS Plastics 2016

Meshing Errors in SOLIDWORKS Plastics 2016   When trying to mesh a runner system with the part in SOLIDWORKS 2016, you may end up getting errors that don’t give you a clue to what is wrong. For instance, take a look at this message: when sewing connector, it without any face error!! This message came up when I was creating a solid mesh. Not sure if the message is a direct translation from another language but it doesn’t give you any direction on what is causing it or even what to change.     I had to follow some logic in this situation. Seeing that the runner mesh was not

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Posted in Daily Dose.....of SolidWorks Support, Design Validation, General Info, Simulation

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