PreSys

From VPG/PrePost to PreSys
An integrated Pre/Post-Processor with a strong heritage, PreSys will allow you to create even complex finite element models easily. It is a full-featured, core solution that can be used on its own or with a variety of available add-on applications.

It also offers a scripting interface to automate processes and interact with 3rd party solutions, as well as a model explorer feature to provide in-depth data navigation. 

PreSys is the core FE modeling toolset in the Inventium Suite. The name PreSys is somewhat literal, but was inspired by the word ‘precise’, and ‘presis’, the Greek word for development. These are words that are quite relevant to engineers, and convey the sense that precision is a fundamental objective of this new software.

The PreSys product is the successor to the VPG/PrePost and FEMB products. In fact, the last 3 VPG releases have been in preparation for this change. With the addition of over 150 new or improved features, it will now be packaged within this new user interface and software architecture. This combination of features and user interface immediately places PreSys in a top position in the FE pre/post processor market.

Solver-Neutral
PreSys delivers a complete FE modeling toolset.  It is designed to be solver-neutral, but with the legacy of its forerunners, having an exceptional level of LS-DYNA and NASTRAN support. Additional interfaces are being developed for other popular MCAE solvers, as well.

Refreshed User Interface, Increased Graphics Speed
When the user opens PreSys for the first time, they will immediately notice the refreshed user interface, with drop-down menus and toolbars.  They also quickly notice the graphics speed and added graphics capabilities of PreSys.  The user interface also allows user to quickly find the tools they need, has fewer levels of menus and is easier to learn.

Fewer Steps & Streamlined Functions
Developers focused not only on packaging the existing tools into the new user interface, but took the opportunity to streamline as many functions as possible. This means that fewer operation steps will be required, and that the users will have a minimum amount of data to enter.

Model Explorer
A significant change in the software is the addition of the Model Explorer. This essentially adds another dimension to the information available to the user at all times. The Model Explorer allows the user to manipulate all of the entities in the model, and also allows users to access non-graphical data through a Keyword tab. The Keyword tab allows access to editable card images for virtually any entity in the model.

Multiple Models and Integrated Pre & Post
As the needs of the CAE engineer expand, the software tools must expand along with them. Inventium’s products allow users to open and operate on multiple models, as well as opening post-processing files along with pre-processing data. This feature provides a unique way for users to get the most out of their software and increase productivity.

Open Architecture / Scripting Access
The Inventium architecture allows the user to capture the process, replay and modify it. This process capture is based on a fundamental capability of the software to execute any function through a scripting interface.

To be truly open and accessible for outside software tools and configurable for processes, each function within the software must be accessible through scripting access. Passing variables or data between software products provides the foundation for parametric design optimization, where the FE modelling software reacts to the results or direction dictated from external software, and automatically updates the model. In this case the design may be ‘driven’ by outside software.

This type of capability, combined with powerful, robust and accurate modelling functions promises to change the way that engineers develop products, and will unlock the potential of optimization software for the use in everyday problems.

Features

• Complete finite element modeling toolset
  • Task manager guides the user through operations
  • Surface automeshing
  • Boundary condition definition
  • Automated solid meshing
  • Material library
  • Unlimited model size
  • Direct interface with LS-DYNA, NISA, NEi Nastran, MSC NASTRAN, RADIOSS, PAM-CRASH & ABAQUS
  • Interactive mesh editing
  • Model check and repair tools
  • Continuous data error checking
• Fully configurable user interface
  • Native Windows XP/Vista/7 & 64-bit OS support
  • High performance, openGL-based graphics
  • Ability to open & control multiple models simultaneously
  • Shortcut keys definable by user
• Complete results visualization
  • Stress/strain contour plotting
  • Animation of deformations & stress/strain data
  • Graphing tools for complete data analysis
  • 3D view application for stand-alone viewing of models & results
• Interfaces with CAD software via standard formats
  • IGES, STEP, SAT, CATIA, DXF, UG NX, ProE, Solidworks & Parasolid
  • Import/export capability
• Model data displayed in a tree-structure
  • Quickly & efficiently access all model entities
• Card image view to create/edit non-graphical data
• Scripting interface for all commands
• Macro capability write/edit/replay
• Language localization