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LS-TaSC 4.1

Release notes for LS-TaSC 4.1

Version 4.1, started in early 2019, is a minor release focusing on incorporating design for natural frequency using modern mathematical programming techniques. It contains the following features:

  • Animations of the design iterations.
  • Constraint bounds can be placed on a frequency. This is possible only for a single eigenvalue load case – full MDO will follow in a later release.
  • Mode tracking for frequency constraints.
  • Linear pentahedral and tetrahedral elements, as well as, the *CONSTRAINED_NODAL_RIGID_BODY keyword are supported for frequency design.
  • User defined DSA for the global variables. This reduces the amount of FEA evaluation for constrained optimization. The user must be able to provide an estimate of the DSA values.