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