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Model Quality Assurance

The PERMAS-MQA basic module builds the system kernel for all other software modules. Among others this system kernel contains the data management system, the UCI command language, the standard input of PERMAS models, the standard output of results, the model consolidation, the substructure technique, part coupling by incompatible meshes, numerous element types, and the software architecture for HPC. Moreover, design of experiments is available providing sampling capabilities including Latin Hypercube Sampling (LHC)
The characteristic features of PERMAS-MQA are the concepts and tools for the quality assurance of the analysis process. The quality assurance of finite element models becomes more and more important.
Kipper
Courtesy Daimler Trucks AG
Comprehensive model testing
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  • Today, Finite Element calculations are used in the product development to early assess different design variants and to accelerate the development process.
  • The skill of FEA systems users changes from an expert level to a more general background.
  • The FE applications become more and more complex.
PERMAS performs very intensive tests of the input data. There are several thousands of different plain text system messages to react to complex inconsistencies in an appropriate way. In particular, the automatic detection of singularities can save much time for the user.
Avoidance of erroneous analysis runs
Vorderachsmodell, Porsche
In PERMAS a task-scanner has been introduced in order to avoid faulty runs:
  • The analysis steps are checked in a group wise manner to verify the feasibility of the complete analysis.
  • The resources in terms of CPU time and disk space are estimated in advance.
  • The input model data are checked for completeness and compatibility with respect to the analysis steps requested.
  • Even the control of those PERMAS modules can be checked which are not licensed on the active platform.
  • The model tests can be used in addition to similar tests of the applied pre-processor.
Relief of the user
Cumbersome routine work can be reduced and the overview of all model related information can be improved by comfortable input facilities, direct interfaces, and all of the test tools listed above. So, the user can concentrate on the objectives of the analysis and the evaluation of the results.
In particular, comfortable interfaces allow for a smooth transfer of model data from the preprocessor.
Comment Feature
A comment feature supports improved communication with SDM (Simulation Data Management) systems.These comments provide a means to describe any entity in the model description in any desired level of detail. To this end, the comments can be included in the model input file or the comments are linked to an additional file which also can include XML documents.
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