CDH/OPTRAN Version 5.1

CDH/OPTRAN Version 5.1 steht zum Download zur Verfügung.

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Dear OPTRAN user

CDH is pleased to inform you, that CDH/OPTRAN Release Version 5.1 is now available for download.

Latest CDH/OPTRAN release version offers following new features, enhancements and corrections:

Enhancements/Features

  • Fast computation for Frequency Dependent CAABSF
  • Support Nastran LFREQ
  • Output multiple PUNCH files
  • New FREQFILTER command
  • Request modal solution SDISP output
  • Performance improvement for SMPF/FMPF
  • New command line parameter NASAUTH, NASOUT
  • Performance improvements for ROA=YES
  • New Override_CLI command in request file
  • Support of ATV in ERP/NVELO computations
  • Enhanced support for NASTFREQS and NASTSUBID

Bug fixes

  • Corrected errors for enforced motion with SPCD
  • Corrected errors in support of models with K2PP, B2PP matrices
  • Stabilised computation with CDH/FastFRS for Frequency Dependent elements
  • Minor fixes in ESUM and Random analyses

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