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LS-OPT 4.1

Release notes for LS-OPT 4.1

The following new features are available in Version 4.1:

  •  Discrete sampling can be done on a variable by variable basis for most sampling schemes including D-Optimality, Space  Filling   and Full Factorial.
  • The Space Filling algorithm has been improved for accuracy and speed.
  • Job scheduling has been significantly improved. Environment variables can be exported through queuing systems.
  • Job data is displayed on the run progress bars with a selection to view the solver log file at any stage of the run.
  • Three injury criteria: a3ms, Chest Compression and Viscous Criterion have been added.            
  • SPH, DBBEMAC and NODFOR groups have been added to the LS-DYNA response interface.
  • GenEx, the LS-OPT Generic Extractor provides features for extracting entities from text files. This    allows LS-OPT to be used with any solver code that produces a text database.
  • Responses can be linked to LS-DYNA cases (*CASE keyword).
  • In addition to polynomials, Radial Basis Functions can now be used for parameter identification.
  • The following features have been added to the Viewer: Self-Organizing Maps (for multi-objective optimization), two-dimensional interpolation matrix using metamodels, global sensitivities (Sobol),    Computed (simulation) and Predicted (metamodel) histories, Parallel Coordinate plot for simulation results.
  • Experiments can be replicated for stochastic fields. Improvements have been made to Stochastic Fields (*PERTURBATION)   in LS-DYNA. Special coordinate systems have been added. *PERTURBATION_MATERIAL has been added for MAT24.
  • To avoid synchronization errors, the Experiments and AnalysisResults databases have been converted to self-contained .csv files.
  • The Run page has been rationalized. Clean start options are now available for all tasks.
  • A selected subset of Pareto optimal points can be exported to a standard format. The file can be used to schedule the points as simulations.