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Release of Genesis 12.1

DYNAmore is delighted to announce the official release of VR&D Genesis 12.1 and Design Studio. The release provides a significant step forward in the capabilities and usability in many areas of the analysis and optimisation. Driven by enhancement requests from customers in motorsport, automotive OEMs, tier suppliers and aerospace Genesis 12.1 provides users with the most complete suite of structural optimisation tools.

GENESIS New Features and Enhancements

New nonlinear analysis capability - Now, the CGAP element can be used for simulating nonlinear static contact analysis.

New second order elements added - Two new elements were added:
CQUAD8 and CTRIA6. The new elements can be used for simple shell/plate analysis or for modeling composites. The new elements are supported in all types of optimization.

Reusable eigenvectors - Eigenvectors can optionally be saved to a special database file so that subsequent modal frequency response runs do not have to recalculate the modes.

Performance improvement in the optimization process. - Results of certain calculations from the analysis solver of design cycle 0 are now saved for reuse in later cycles, making later cycles faster.

New random response available for all types of optimization -
Power spectral density functions of displacement, velocity and acceleration are now available to be used as objectives or constraints.

New shifted responses available for all types of optimization -
Shifted responses allow easy creation of constraints which have bounds that are frequency dependent. Shifted respones are avaiable for displacements, velocities, accelerations and corresponding user function responses.

User function of dynamic responses now available for topology -
UFDATA now can be used with topology optimization through new TRESP1 response types: UFDISP, UFVELO and UFACCE. In previous versions, UFDATA could only be used with parametric optimization.

New fabrication constraints for topography, topometry, topology and freeform optimization - New fabrication constraints enforce designs that are uniform throughout a specified plane using symmetry type: UXY, UYZ and UZX. In addition, the new symmetry type UXYZ forces a completely uniform design.

Topology extra variable selection - A new data entry, TSELECT, tells the optimizer to select the best set of toplogy extra variables to move to their upper bound while forcing the rest to their lower bound. This new capability allows easy formulation of optimization problems such as selecting the best among a set of candidates to keep in component designs.

Changes in Version 12.1 with Respect to Version 11.0

Genesis version 12.1 no longer defines a default value for the SOL executive control command. To run input data for previous versions that does not have the SOL executive control command, specify the previous default compatibility mode using one of the following methods: add SOL COMPAT0 to the executive control; or use the -sol=0 command line option.

Version 12.1 performs stricter checking of variable names in DEQATN data than previous versions. The only allowed characters in variable names are (case-insensitive) letters ('A'-'Z'), numbers ('0'-'9') and underscore ('_'). In addition, names must begin with a letter. Input data for previous versions with illegal variable names must be corrected before it will run successfully in version 12.1.

Except for the above, Genesis 12.1 should run any problem that was successfully running in version 11.0 with no changes.

On Unix/Linux systems, the installation script no longer sets a default value for LENVEC. When Genesis runs, a default value will be chosen such that Genesis uses approximately 50% of the physical memory on the machine. If this is not desired (e.g., on servers), the system administrator can manually edit the vrand/bin/genesis-12.1 script to set a different default value. As always, any user can use the LENVEC executive control command or the -lenvec command line option to specify a desired value.

Design Studio for Genesis v12.1 New Features and Enhancements

  • Lua Scripting Plugin
  • Find Filter Highlighting
  • Empty List Prompts
  • Input Extension Preference
  • New Image File Defaults
  • Genesis 12.1 Compatibility
  • New Examples
  • New Viewport Ruler
  • New Group Color Option
  • Mouse Wheel Zoom
  • New Identify Buttons
  • Convert Element Order
  • 1-D Element Orientation
  • Subdivide Existing Domains
  • New Domain Creation Option
  • New Data Deletion Option
  • Fine-grained Controls
  • Frequency Response X-Y Popup
  • Result Comments

Compatibility with Design Studio for Genesis Version 11.0

Design Studio database files (*.dsg) written with version 11.0 are compatible with version 12.1. However, database files written with version 12.1 are not compatible with previous versions.