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Page 7: SurMesh

Purpose: This interface is for surface mesh generation. Two meshing methods are available: Automatic Topology Mesher (AMesh) and Tool Mesher (TMesh).

AMesh - Topology Meshing is intended for general finite element meshes of shell structures. Mesh requirements are input thorough the mesh parameters, and additional options can be turned on by activating the Advanced button.

TMesh - Tool Meshing is intended specifically for metalforming applications where surfaces may contain very small radii that need to be meshed accurately, and at the same time have flat areas that require a relatively coarse mesh. Tool meshing requirements are very different from those of structural finite element analysis.

For both mesh generators, some amount of geometry repair is available. For more extensive geometry clean-up, use of a dedicated CAD package is advised prior to importing in LS-PrePost.

Controls:

  • amesh panel
  • SurMesh AMesh
  • rbs AMesh - Automatic Topology Mesh
  • cbc In Original CAD Part - Put new elements in original surface part
  • cb Surfaces Gap Check - Check the surfaces gap by gap tolerance before meshing

  • Ave.Ele.Size: Enter average element size
  • Ign.HoleSize: Enter ignore hole size
  • Gap Tolerance: Enter gap tolerance between surfaces

Advanced
 Expand advanced control setting
  • cbc Skip Narrow Surface - Skip narrow surfaces
  • cb Mesh by Part - Separate elements by part
  • cb Dup. Surface Check - Duplicated surface check
  • cb Auto Repair - Automatic repair mesh
  • cbc Blank All Surfaces - Blank or unblank all surfaces

Mesh It
 Perform meshing

Accept
 Accept created mesh
Reject
 Reject created mesh
Done
 Exit SurMesh Interface

 

  • tmesh panel
  • SurMesh TMesh
  • rb TMesh - Tool Mesh
  • cbc In Original CAD Part - Put new elements in original surface part
  • cb Surfaces Gap Check - Check the surfaces gap by gap tolerance before meshing<

  • rbs Connected - Mesh on surfaces will be connected
  • rb UnConnected - Mesh on surfaces will not be connected

  • Max.Ele.Size: Enter maximum element size
  • Min.Ele.Size: Enter minimum element size
  • Chordal Dev.: Enter chordal deviation ratio
  • Min.Int.Ang: Enter minimum interior angle
  • Gap Tolerance: Enter gap tolerance between surfaces

  • cbc Setting By Part - Setting mesh parameters by part

  • cbc Blank All Surfaces - Blank or unblank all surfaces

Mesh It
 Perform meshing

Accept
 Accept created mesh
Reject
 Reject created mesh
Done
 Exit SurMesh Interface

 

  • load panel
  • SurMesh Load
  • rb Load - Load Geometry Data
  • rbs IGES File - File is in IGES format
  • rb VDA File - File is in VDA format

  • File Name: Enter file name to be read

Browse
 Browse directory for filename to be read

Read File
 Read geometry file
Dones
 Exit the mesher interface

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© 2012 Livermore Software Technology Corporation