Aerodynamic loads in a full-vehicle
NVH Analysis
The MpCCI FSIMapper is a tool developed by Fraunhofer SCAI. It builds the link between the simulation of the vehicle’s aerodynamics and the NVH-simulation. FSIMapper transfers the pressure excitation from the CFD calculation to the (not necessarily matching) NVH mesh.
The transient pressure fluctuations on the vehicle’s surface can be automatically transformed by a Fourier decomposition in order to create the frequency dependent loading for the vibration analysis.
The tool offers features such as windowing, time range filtering and frequency truncation for the export.
In 2016, CDH AG acquired marketing, sales and support rights from scapos AG to distribute MpCCI products in Japan and the USA.
using Nastran and CDH tools
Software solution
MpCCI FSIMapper is a vendor-neutral mapping software, building a unidirectional file-based interface between simulation tools. It offers different spatial interpolation algorithms in order to transfer simulation results to a structural simulation mesh. The mapping algorithms handle different source and target mesh discretizations, element types, geometries and unit systems. The tool is also available in batch mode.
MpCCI FSIMapper allows you to read data of various CFD result formats as well as two EM result formats. The supported EnSight Gold format can be exported by diverse CFD tools which enlarges the practicability. The mapped data is exported into the native target simulation syntax.
Post-processing examples using GNS Animator and CDH/TPA:
Key features
- File-based mapping solution
- Robust and efficient algorithms
- Handling non-matching geometries
- Automated model positioning
- Fourier Transformation
- Handling cyclic symmetric geometries
- Volume-based temperature fields
- Interactive visualization
- Batch capability
Graphical user interfaces (GUI)
The MpCCI FSIMapper comes with a graphical user interface where all relevant parameters for the mapping can be set.
The usage of the tool is quite simple: after selecting the models and parts some choices concerning algorithms and parameters have to be made. After the mapping the results and the original values are loaded into the MpCCI Visualizer.
The immediate visualization of the results makes it possible to detect model errors or bad mapping results due to parameter problems. The user can identify the critical areas and start a new mapping process.
File Interface
The MpCCI FSIMapper supports a growing number of CFD export file formats and input formats for CSM.
Further interfaces are under development. If you are interested in mapping your own file formats through MpCCI FSIMapper we would be happy to support you.
| SOURCE FORMATS | QUANTITIES | |
| CFD | ANSYS Fluent (.cas, .dat, .h5) ANSYS CFX (.csv) EnSight Gold (.case) FINE/Turbo (.cgns) FloTHERM, FloEFD FloEFD 6SigmaET (.vtu, .vtm) | Pressure Heat flux Temperature Film temperature, heat coeff. |
| EM | ANSYS Maxwell (.unv) MagNet (.vtk) MAG (.bdf) VMAP | Force Temperature |
| TARGET FORMATS | TARGET ANALYSES | |
| FEM | Abaqus ANSYS Mech. LS-Dyna keyword (.key, .k, .dynain) MSC Nastran VMAP | Deformation Stress Heat transfer NVH Fatigue |
System Requirements
OPERATING SYSTEM
Linux64 (x86_64)
Microsoft Windows
TRIAL INSTALLATION
You can test the products free of charge for 30 days.
Fraunhofer SCAI MpCCI FSIMapper BrochureHave any questions about this product? Feel free to get in touch.
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