FEMZIP
Compression of LS-DYNA Simulation Results using FEMZIP
FEMZIP is a specialized tool for the compression of LS-DYNA results. It reads and reconstructs the native data formats. The decompression tool FEMUNZIP is available at this website free of charge.
Simulation results are usually stored in 32- or 64-bit floating point representation. Due to numerical approximation errors and the inaccuracy in the model description itself, the 32- or 64-bit floating point representation is often unnecessarily precise compared with the effective precision of the simulation results. Therefore FEMZIP is mainly based on lossy compression. The loss is controlled by the user by means of precision settings specified for the geometry and for each variable. In addition FEMZIP supports the option to compress specific variables losslessly as well as the option to eliminate variables completely. In general, lower precision settings result in higher compression factors.
| FEMZIP is fast, easy to use, reliable and creates small data files Result files from crash analysis require high storage capacity (>GByte per file, up to 100 TByte per year). The compression tool FEMZIP helps you to save time and archiving resources. Because FEMZIP was specially developed for the compression of simulation results. In contrast to conventional compression tools, FEMZIP starts in the specific data structure of LS-DYNA.
Reduction of information density
Archiving, Back-up and fast data exchange
Supplementation and Decompression
Test License
Example with compression factor varies from 5 to 10 |
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The FEMZIP software tool was especially developed by the Fraunhofer Institute for Algorithms and Scientific Computing SCAI, Sankt Augustin, Germany.
