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Sean Marrs
Sean Marrs
Sean Marrs is an Applications Engineer at our office in Beaverton, Oregon. Sean has a BS in Mechanical Engineering from the California Polytechnic University San Luis Obispo. When he isn't in the classroom, Sean spends his free time running around in the forest and drinking great micro brews!

SOLIDWORKS: Improving Assembly Performance with Simplified Components

 
February 23rd, 2018 by Sean Marrs

SOLIDWORKS

One way to increase assembly performance is by using simplified configurations that can be selected when opening an assembly. Simplified configurations reduce the amount of data that must be loaded into RAM which increases graphical performance by requiring fewer edges and details to be displayed. When simplifying components general guidelines are useful for determining what can be removed and what is important to retain.

In general, you want to keep:

  • Mating faces
  • Interference faces (faces that describe the overall volume/boundaries of the component)

What you should focus on removing:

  • Cosmetic features (fillets, chamfers, text engraving/embossing)
  • Detail Features (not necessary for either use listed above and add to graphical performance)

*The Simplify Utility is also great for creating simplified FEA models, helping to improve meshing and solve times.

Where do you find the Simplify Utility :

  • Dropdown menus: Tools > Find/Modify > Simplify
  • For Simulation: Analysis Preparation CommandManager Tab
  • Search Box (Commands) in upper right corner of UI

Simplify Utility

What does the Simplify Utility do?

It finds and suppresses features that are small relative to the overall volume of the part. 

What features can be suppressed with Simplify?

Features that can automatically be found and chosen for suppression include Fillets, Chamfers, Holes, and Extrudes.

Simplify Features

Terms to know for the Simplify Utility

Simplify Utility

Simplification factor – The value you enter to help SWX determine which features count as “small”.

Feature Parameter – Compares the primary or critical dimension of the feature to the cube root of the part or assembly’s volume, multiplied by the Simplification factor.

Feature Parameter 

Volume Based – Compares the feature volume to the part or assembly volume multiplied by the Simplification Value.

Volume Based Feature 

If you are going to use this to increase assembly performance, then this tool should be used at the assembly level as the option Ignore features affecting mates is only available in this environment. However, the Simplify utility can fail to detect that suppression will lead to mate errors if there is not a direct parent/child relationship between the mate and the feature to be suppressed.

Using the tool

Simplify will be run in the assembly in order to take advantage of the Ignore features affecting mates option, though only one part will be simplified in this example. The default Simplification Factor of 0.20 and Feature Parameter criteria will be used for the search (Find Now can always be rerun with different options to see how it affects the search results).

*In general, Feature Parameter is faster and Volume Based finds more features for suppression.

Feature Parameter

In the assembly, all components must be fully resolved (if all components are set to lightweight than the Simplify utility will be grayed out and not available for use). 

Suppressing

I can choose to select a specific group of features to suppress or use the All checkbox. In this case, I am only going to simplify one part so I will group select all of that part’s features (which are listed together).

Suppress feature in SOLIDWORKS

Before clicking Suppress, I will also select the Create derived configurations checkbox so that I can easily flip between my detailed and simplified versions. A derived configuration will also be made at the assembly level where the simplified component configurations will be active.

Clean-up

Now that many features have been suppressed, it looks like a mate error was caused.

Clean-Up feature in SOLIDWORKS

This was likely caused by the suppression of a parent feature, thus causing the suppression of a child feature who was involved in the mate. To find out I will use the Dynamic Reference Visualization (Parent) tool to show me which feature I need to un-suppress (in this case Extrude43). Doing so resolves the mate error.

Dynamic Reference Visualization (Parent) tool

I now have an assembly configuration that I can select in the Open Dialog window which will use the Simplified configuration saved in the part file. If a full simplified assembly configuration is desired then it is best to do all components at once as the utility makes a new assembly configuration each time it is run.

For more information, get a SOLIDWORKS 3D CAD quote or contact us at Hawk Ridge Systems today. Thanks for reading!

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