MEDINA (software)

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MEDINA
Basic data

developer T-Systems
Current  version 8.2.5.1
category CAE
License Proprietary
http://servicenet.t-systems.de/medina

MEDINA (short for Model Editor Interactive for Numerical Simulation Analysis ) is a universal pre- / post-processor for FEM simulation calculations.

The development of MEDINA began in the early 1990s at Daimler-Benz AG , was then continued at debis Systemhaus and has been carried out by T-Systems International GmbH since 2001 . The current release status is MEDINA 8.2.

Structure and interfaces

MEDINA was designed and developed as a universal pre- / post-processor that offers functionalities for a wide variety of FEM simulation tasks and supports most of the common CAD formats, solvers and operating systems.

The supported 3D data formats are currently (MEDINA Rel. 8.2): CATIA , IGES , JT , SAT (ACIS) , STEP , STL and VDA-FS .

With the 3D data conversion solution COM / FOX from T-Systems, other formats can be integrated.

The supported solvers currently (MEDINA Rel. 8.2) mainly include: ABAQUS, LS-DYNA, NASTRAN, PAMCRASH, PERMAS .

MEDINA can currently be operated on the following operating systems and hardware architectures: Linux , Microsoft Windows , IBM / AIX , Hewlett Packard / HP-UX , Silicon Graphics / IRIX , SUN / SunOS .

Typically MEDINA is used for the following tasks FEM: crash simulations , durability tests (thermal and mechanical loads), vibration and noise tests NVH ( Noise Vibration Harshness ), Studies on the pedestrian and occupant protection .

MEDINA consists of two modules: the FEM preprocessor (MEDINA.Pre) and the FEM postprocessor (MEDINA.Post). In the preprocessor all necessary steps are carried out in order to be able to start an FEM calculation. This includes functionalities such as:

  • Import of the geometry data from the CAD system
  • Import of the associated metadata from the CAD system or PDM system
  • Import of FEM models
  • Post-processing of the CAD geometry
  • Model networking
  • Model structuring
  • Definition of the material parameters
  • Definition of the physical boundary conditions
  • Definition of load cases
  • Creation of the specific input files (called input deck) for the respective calculation program (called solver)

In the post-processor, all steps for processing the data calculated by the solver (also often called primary data) take place. This includes functionalities such as:

  • Calculation of derived quantities (secondary data)
  • Visual representation of the results (graphics, animations)
  • Export the result data
  • Creation of reports

Special features of MEDINA

MEDINA has been specially designed to support complex simulation calculations and the processing of large FEM models, such as are common in the automotive and aerospace industries, as required and with high performance.

The so-called part structures and connector elements are of great importance here. Part structures make it possible to map the product structures used in the CAD / PDM system exactly in the FEM model. The connector elements are used for generic modeling as well as solver- and customer-specific design of most common connection techniques (such as welding, screwing, gluing). In the process step of the so-called assembly, the FEM components (part structures and connecting elements) are put together to form a complex overall FEM model. Using this overall FEM model, the physical behavior of complex products such as automobiles or aircraft can be examined.

With the help of protocols and scripts, individual process steps and entire process chains of pre- and post-processing can be automated. Using so-called dynamic commands, it is possible to expand the standard functionalities with customer-specific extensions.

Target groups / users

Due to the development history of MEDINA and the existing functionalities for processing very large models, MEDINA is particularly widespread in the automotive industry. Other user groups include the aerospace sector, the manufacturing industry, engineering offices and universities.

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  1. ^ T-Systems: Official Product Information about MEDINA . T-Systems International GmbH. Archived from the original on August 27, 2011. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved February 17, 2011. @1@ 2Template: Webachiv / IABot / servicenet.t-systems.de
  2. ↑ M. Westhäußer: How can the calculation process for entire vehicles be improved? . In: FEM, CFD and MKS simulation . 2003.
  3. ↑ T-Systems: Product Lifecycle Management News & Events . T-Systems International GmbH. Archived from the original on August 27, 2012. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved December 3, 2010. @1@ 2Template: Webachiv / IABot / servicenet.t-systems.de
  4. ↑ H. Kitagawa,, TB Negretti, JP da Silva, KC Malavazi: Product Development Cycle Time Reduction through Geometry Reconstruction from a Finite Element Mesh . In: SAE International Technical Papers . 2010. doi : 10.4271 / 2010-36-0320 .
  5. ^ S. Zhang: Simplified Spot Weld Model for NVH Simulations . In: SAE International Technical Papers . 2005. doi : 10.4271 / 2005-01-0905 .

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