BETA CAE Systems USA, Inc.
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Meshing & Assembly
Mesh Algorithms:

ANSA has seven different algorithms for generating surface mesh along with 4 unique algorithms for volume meshing. These algorithms can be used individually or a combination of them can be used for modeling a complex geometry. All these algorithms are available as both manual and batch – mesh options. The algorithms can be applied to generate a combination of elements across different mesh types and mesh order. These proprietary algorithms enhance the speed and accuracy of geometry meshing.

Batch meshing:

The batch meshing tool integrates all actions needed to generate a high – quality mesh for any analysis on both geometric and FE data through its customizable meshing sessions. In addition, this tool can also be fully controlled and executed through scripts, as an integral part of the pre – processing job. Advanced inbuilt filtering options allow for easy mesh criterion based part sorting and organization. Batch mesh tool is capable of automatic detection and treatment of holes, flanges, fillets, tubes and logos among other features. Automatic detection and treatment of unnecessary face edges, features, holes, flanges, fillets, tubes and logos gives the user tight control over every aspect of the resulting mesh. Input/output of ASCII parameter files provide easy saving and loading of sessions, making the batch mesher a simple and straightforward "plug and play" operation thus is an effective way to maintain modeling guidelines. A final report can be generated at the end of the session documenting the batch mesh result on part basis. For batchmesh brochure, click here > >

Reconstruct / Reshape:

A frequent requirement that arises during modeling is the need for disfeaturing the model for optimizing mesh quality. Most pre processor will force you to disfeature the geometry and run new meshing job. ANSA provide a simple solution to such scenarios by introducing the RECONSRUCT & RESHAPE algorithms. These mesh improvement tools give the user batch mesh-like capability solutions for local mesh problems on geometric mesh and FE data.  Optimizing quality, changing density, changing mesh types, and feature treatments can all be accomplished through these tools wherever needed.   This capability allows for fast local changes without the need to remesh the whole part.

Wrap:

ANSA's variable-density wrapping tool provides very tight adherence to detail in convex as well as concave feature situations.  Inner and outer wraps are possible, with auto detection of multiple "volumes" for the user to choose which to wrap.  The original assembly's zone/property changes can be matched in the wrap mesh, with very close alignment of the wrap zones to the originals.  The wrap tool also houses useful functions to identify leaks, identify and fix duplicate elements, and automatic fixes for such scenarios.

Layers Generation:

The layer generation interface in ANSA offers the user lot of control to generate the required layers off of the surface mesh. Along with the control for height and growth factors, user can provide direction to the algorithm for layers from adjacent surfaces and also auto – create skins on them. The tool use HEXA, PENTA or a combination of these element types depending on what the scenario dictates.

Volume Mesh:

ANSA has a fully automatically generations for TETRA meshes for both CFD and structural application. It also has the capability of creating DELAUNAY type of TETRA elements. Some fluid flow applications and even in structural there is often a need for HEXA – CORE, this can be easily be achieved in a automatic method, with control over defining specific coordinates for the HEXA element generation. These HEXAs are connected to the surface elements through a transition of PENTAs or TETRAs. To support ‘100% HEXA’ model, ANSA has developed advanced functionalities to indulge user in semi – automatic process.

Acoustic Cavity:

This tool sets new industry standards for creating of rapid and accurate acoustic models for NVH studies using NASTRAN or PERMAS. The analysts have control over the size of elements, number of sensor points & locations, type of connection between the solid elements & the wetted surfaces. Also it can automatically create / update the appropriate ACMODL solver card.

Connections manager:

Welds and Bolts in ANSA are based on geometric entities in a group of entities known as Connections. ANSA incorporates a very comprehensive connections manager tool which is geared towards managing various types of welds, adhesives, bolts through a single user friendly interface. The tool is capable of handling both mesh – dependent & independent welds, catering for discipline specific representation of the connection entities. Some of the connections that it handles are:
  • Spot welds
  • Seam welds
  • Hemlines
  • Adhesive Lines and faces
  • Gumdrops
  • Bolts
It is also capable of interfacing with numerous connections data file-formats allow the completion of a single stage assembly.

Connectors:

ANSA has developed as simple way of establishing and managing connection information between subassemblies through its geometric entities called connectors. The connectors are tolerance based connections which allows for faster assembly and accurate model assembly. These also provide a simpler way for maintaining and updating newer variants of sub – systems during product development process.

Bolt Tool:

This is a specialized tool for BOLT construction. The interface supplies the user with a variety of element types for head and body of the bolt. This tool is common for all the structural solver decks in ANSA. Entities created from this tool are interoperable and map to the respective solver entities when user switches decks.

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Mesh Reconstruction

MESH RECONSTRUCTION

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Mesh Wrap

MESH WRAP

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Mesh Manipulation

MESH MANIPULATION

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Weld Types
 

WELD TYPES

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MESH TYPES

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