LiveLink™ for Inventor® Updates

For users of LiveLink™ for Inventor®, COMSOL Multiphysics® software version 5.4 brings support for synchronizing read-only parameters, object selections generated for material selections, and an updated tutorial model. See the LiveLink™ for Inventor® updates in more detail below.

Support for Synchronizing Read-Only Parameters

Dimensional parameters that are controlled by an equation in the CAD model can now be transferred during synchronization. These parameters are treated as read-only parameters and are available for use in a COMSOL Multiphysics® model. The values of these parameters cannot be changed inside the model, but they are updated with each synchronization based on the changes in the CAD model.

An example of read-only parameters in the Inventor software.

The d0 parameter is controlled by an equation in this Inventor® part file.

The d0 parameter is controlled by an equation in this Inventor® part file.
An example of read-only parameters in LiveLink for Inventor.

After synchronization, the d0 parameter appears in the Read-only parameters table and the associated global parameter, LL_d0, can be used in the simulation setup.

After synchronization, the d0 parameter appears in the Read-only parameters table and the associated global parameter, LL_d0, can be used in the simulation setup.

Object Selections Generated for Material Selections

Material selections, which are generated from the material assignments in the CAD model, are now available as general object selections. These selections are available in the lists of input objects for the geometry feature nodes, below the LiveLink™ node in a geometry sequence.

An example of object selections generated for material selections in LiveLink for Inventor.

After synchronization, the Copper material selection appears in the Object Selections section.

After synchronization, the Copper material selection appears in the Object Selections section.
An example of accessing a material selection in LiveLink for Inventor.

The synchronized Copper material selection can be accessed as input to the Union 1 operation to form the union of all objects that have been assigned the Copper material in the Inventor® file.

The synchronized Copper material selection can be accessed as input to the Union 1 operation to form the union of all objects that have been assigned the Copper material in the Inventor® file.

Updated Tutorial: Electrical Heating in a Busbar Assembly

This updated tutorial model analyzes a larger busbar assembly designed to conduct direct currents, from a current source, to the anode, in an electrolysis process. Selections defined in the CAD assembly files are used to assign materials and boundary settings in the simulation. A parametric sweep over two parameters in the Inventor® assembly has been included to study the influence of the geometry on the physics phenomena, and the results of the sweep are visualized through a Table Surface plot. This can help in selecting geometric parameter combinations that keep the maximum temperature in the copper components below the desired maximum value.

The Electrical Heating in a Busbar Assembly model. A 3D surface plot of the temperature distribution in a busbar assembly. A red-green 2D plot shows the maximum temperature. A 3D surface plot of the temperature distribution in a busbar assembly. A red-green 2D plot shows the maximum temperature.

Updated Support for New CAD File Format Versions

The CAD file import and export functionality has been extended to support new versions for the following file formats:

Read from File

  • AutoCAD® (.dxf, .dwg): 2018 and 2019
  • Inventor® (.iam, .ipt): 2018 and 2019
  • NX™ (.prt): 12
  • Parasolid® (.x_t, .xmt_txt, .x_b, .xmt_bin): V31.0
  • PTC® Creo® Parametric™ (.prt, .asm): 5.0
  • SOLIDWORKS® (.sldprt, .sldasm): 2018

Write to File

  • Parasolid® (.x_t, .xmt_txt, .x_b, .xmt_bin): V31.0

Autodesk, the Autodesk logo, AutoCAD, and Inventor are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries. Parasolid and NX are trademarks or registered trademarks of Siemens Product Lifecycle Management Software Inc. or its subsidiaries in the United States and in other countries. PTC, Creo, and Creo Parametric are trademarks or registered trademarks of PTC Inc. or its subsidiaries in the U.S. and in other countries. SOLIDWORKS is a registered trademark of Dassault Systèmes SolidWorks Corp. COMSOL AB and its subsidiaries and products are not affiliated with, endorsed by, sponsored by, or supported by these trademark owners.