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RAVEn - CAD Repair and Visualisation

RAVEn (Repair And Visualisation Environment) is a software tool that is a general purpose pre-processor and visualisation environment for Finite Element Modelling. It is designed to bridge the gap between the CAD systems and computer modelling tools.

RAVEn (Repair And Visualisation Environment) is a software tool that is a general purpose pre-processor and visualisation environment for Finite Element Modelling. It is designed to bridge the gap between the CAD systems and computer modelling tools. This is required because most CAD models are not constructed with modelling in mind and deficiencies in the export process mean that the geometry isn't suitable for modelling without further manipulation. Instead of having to go back to the CAD system the user can prepare the geometry with RAVEn. It is also used as a general purpose visualisation tool for multidimensional datasets.

RAVEn features:

  • OO design and written in Java™ with OpenGL™ bindings
  • Platforms tested so far include: Windows, Linux, HP PA-RISC, HP Alpha, SGI
  • Portable to any machine with Java™ and OpenGL™ implementations
  • Efficient data structures enabling visualisation of large datasets

750,000 elements within 512Mbytes:

  • Provides a portal to access CAE codes over Grid enabled infrastructure
  • Easily customisable
  • Can provide plug-in capability for site based customisations
  • Current user base exceeds 50 daily users

CAD Repair:

  • Represent geometry using cubic splines
  • Simpler to modify interactively
  • New shape creation simplified
  • Curve/Surface creation and repair
  • Visual feedback on problem areas of the geometry

FE Meshing:

  • Provides an interface for Solar and Flite3D meshing tools
  • Interactive surface meshing to gauge mesh quality
  • Mesh spacing controls
  • Allows the problem to be configured (boundary conditions etc)
  • FE mesh quality metrics
  • Exports Patran format meshes

Visualisation:

  • Able to read generic x,y,z datasets
  • Variable shading with customisable colour maps
  • Contour lines
  • Vectors
  • Able to read Solar, Flite3d and Patran meshes

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