PreSys™

Finite Element Modeling and Analysis Software
An integrated Pre/Post-Processor with a strong heritage, PreSys™ is a computer aided engineering (CAE) modeling software that will allow you to create even complex finite element models easily. It is a full-featured, core mechanical engineering software 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 finite element  modelling (FE / FEM) 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 (eta / VPG) 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, this finite element software is now packaged within a dynamic new user interface and software architecture. This combination of features and user interface immediately places PreSys in a top position in the FE preprocessor / postprocessor market.

Solver-Neutral & CAD 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, NASTRAN (MSC NASTRAN, NX NASTRAN and NEi NASTRAN) and NISA support. Additional interfaces are being developed for other popular MCAE solvers such as Abaqus, Ansys, PAM-CRASH and RADIOSS, as well.  PreSys also offers native interfaces for CATIA, Inventor, ProE, UG NX, Solidworks & Parasolid, with the ability to import and export native data and standard CAD formats such as IGES, STEP and VDA.

Moldex3D Interface
PreSys seamlessly interfaces with Moldex3D, the world’s leading Computer Aided Engineering (CAE) software product for the plastics injection molding industry. This new development allows a user to import and edit existing Moldex3D models; to quickly create complex Moldex3D shell models; then export the models for analysis.  By accessing Moldex3D through the user-friendly PreSys™ interface, the model creation process can be automated and streamlined for greater efficiency. PreSys™ offers many flexible and intuitive functions for quickly creating Moldex3D models and editing the designs.  More

User-Friendly Interface, Increased Graphics Speed
PreSys™ offers a user-friendly interface, with drop-down menus and toolbars.  It also features amazing graphics speed and enhanced graphics capabilities.  The user interface allows the user to quickly find the tools they need and has few menu levels for ease of use.

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.  The result is a faster path to your FE analysis.

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 tree. The Keyword tree 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 finite element analysis (fea) simulation results files along with finite element 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.