Tosca

Efficient Optimization Based on FEA and CFD Simulations

What’s New for Tosca Structure 2020x and Tosca Fluid 2020

Tosca Structure

  • Automatic creation of Stop Conditions
    • Automatic stop conditions that check if the optimization has converged are now automatically created for sensitivity-based shape and bead optimization. This closes a gap to Topology and Sizing optimization workflows and ensures consistent behavior of all sensitivity-based optimization types.
  • Upgrade to Python 3.7.1
    • Tosca now ships with python 3.7.1. All user scripts are called using the upgraded python interpreter. Most user scripts written for python 2.7 should automatically be converted without issues to run with the new version. In case of compatibility issues please contact support.
  • Tosca Structure.topology
    • Optimization problem stabilization for  minimizing structural volume or mass
      • Minimizing structural volume or mass: the mathematical optimization problem can be ill-posed leading to convergence issues. Stabilization can be activated to improve convergence behavior.
  • Tosca Structure.shape
    • Enabling sensitivity based shape optimization with Abaqus non-linear analysis
    • Non-linear static analysis 
      • (NLGEOM=YES, *PLASTIC, *CONTACT ...)
    • Including all modeling non-linearities as large deformations, contact and non-linear materials. 
    • Stress constraints
    • Reaction force constraints, even on *COUPLING elements
    • 2D and 3D elements
    • Abaqus execution in MPI-mode
    • Better performance, especially for stress constraints
    • Automatic creation of Stop Conditions
      • Automatic stop conditions that check if the optimization has converged are now automatically created for sensitivity-based shape and bead optimization. This closes a gap to Topology and Sizing optimization workflows and ensures consistent behavior of all sensitivity-based optimization types.
    • Sensitivity based optimization with plastic equivalent strain magnitude (PEMAG) design response is available for Abaqus in r2020x HF1-FP2006.
  • Tosca Structure.bead
    • Enabling sensitivity based bead optimization with Abaqus non-linear analysis which replaces the “linearized” workflows
    • The Sensitivity based bead optimization now supports
      • Non-linear static analysis 
        • (NLGEOM=YES, *PLASTIC, *CONTACT ...)
      • Stress constraints
      • Reaction force constraints, even on *COUPLING elements
      • Abaqus execution in MPI-mode
      • Better performance
    • Automatic creation of Stop Conditions
      • Automatic stop conditions that check if the optimization has converged are now automatically created for sensitivity-based shape and bead optimization This closes a gap to Topology and Sizing optimization workflows and ensures consistent behavior of all sensitivity-based optimization types.
    • Sensitivity based optimization with plastic equivalent strain magnitude (PEMAG) design response is available for Abaqus in r2020x HF1-FP2006.
  • Tosca Structure.sizing
    • Sensitivity based optimization with plastic equivalent strain magnitude (PEMAG) design response is available for Abaqus in r2020x HF1-FP2006.
  • Tosca support in ABAQUS/CAE 2020
    • Improved command-line handling of Tosca and Abaqus within Abaqus /CAE, ie. more Abaqus command-line options are now allowed.
  • Supported solver interfaces
    • Abaqus 2020 
    • ANSYS® v19.2
    • MSC Nastran® 2017
    • Supported life solver interfaces 
      • fe-safe 2020 
      • Femfat ® 5.3

Tosca Fluid

  • Tosca Fluid improved interfaces for:
    • STAR-CCM+® versions: 9.02 – 14.02
    • Ansys Fluent® versions 15.0.0 - 19.2.0