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PreSys

body-in-white meshed with VPGPreSys is an engineering simulation solution for the development of finite element analysis models. It offers an intuitive user interface with many streamlined functions, allowing fewer operation steps with a minimum amount of data entry along the way. Using PreSys, the user can analyze product designs, view simulation results and analyze/predict how the product will perform in a given circumstance.

Building on an efficient framework, PreSys is the price/performance leader. Through the "zero text editing" environment,  all of the capabilities within LS-DYNA, NASTRAN and RADIOSS are easily accessible through the user interface.

Results visualization is easy with PreSys. The software automatically detects the type of model being viewed and makes the appropriate files available for viewing.

Large system models of structures are a specialty. FE models of large complex structures can quickly be generated by using PreSys' Topology Automesher. The Topology Automesher provides an intelligent automeshing system which reduces modeling and assembly time drastically.

All major FE softwares are supported in PreSys. Interfaces such as NASTRAN, LS-DYNA and RADIOSS are 100% "zero-text editing" environments which can easily convert between one another.

Automated tetra mesh Automated Tetra Meshing is easily performed using PreSys' meshing tools.


For more details please see ETA's website.

VPG

VPG is a set of plug-ins for PreSys, which allow the user to quickly & efficiently create finite element models & define the models for mechanical system analyses. It can be used to simulate common automotive safety test conditions, drop tests, fluid-structure interaction & structural analysis accurately.

Drop Test
The Drop Test plug-in enables engineers to simulate designs undergoing the abuse of everyday use & the extremes of the product lifetime.

Fluid-Structure
The FSI application allows the user to create advanced fluid-structure interaction simulations, automatically creating ALE mesh zones & explosive pressure sources. The user can set-up LS-DYNA® models with multiple fluid zones & variable charge shapes using a simple parametric model definition.

Safety
The Safety plug-in allows the user to set-up LS-DYNA® safety simulations, including FMVSS & ECE vehicle safety test simulations. Occupant modeling is supported to interactively position finite element dummy models & add seatbelts.

Structure
With the Structure plug-in, the user can analyze tire models, suspension models & road surfaces. The plug-in offers a dynamic non-linear analysis approach, using real-time boundary conditions consistent with common test environments.

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