CDH/AMLS and FastFRS new release

We are pleased to inform you that the upcoming CDH/AMLS Version 5.2 and CDH/FastFRS 2.2 (revision 151) is now available.

More information: PDF


  • Support added for the ADVENTURECluster FE solver from Allied Engineering
  • Some minor and very rarely encountered bug-fixes
  • Improvements for future features


  • In case of complex modal stiffness matrix, CSVEIGV=YES was not able to export csv file “modal_info_struct.csv”. This error has been corrected
  • File name of csv format output for modal information has been changed to “modal_info_struc.csv”
  • Several smaller performance enhancements and bug-fixes

CDH/AMLS delivery database:

  • Implemented support for MSC-Nastran 2021.3, 2021.4 and NX/SimCenter-Nastran 2021.2
  • In FRF-substructure applications, wrong acoustic responses were found in case a complex DMIG K2PP matrix (typically from modal tires) is present in the model for the response run (step 2 run). This error has been corrected.
  • FRF-substructuring is able to output OP4 files for the external CDH/TPA software to further streamline the transfer path analysis process.
  • Enhanced support for ODS requests for FD-element and FRF-substructure applications at 2-step run.

Supported Nastran Versions
MSC: 2016, 2017, 2018, 2019, 2019FP1, 2020SP1, 2021.0, 2021.1, 2021.2, 2021.3, 2021.4
NX/SC: 11, 12, 2019.2, 2020.1, 2020.2, 2021.1, 2021.2

CAUTION: End of support warnings

  • This is the last AMLS release that officially supports the RHEL/CentOS 6.x operating system by default
  • This is the last AMLS delivery database release that officially supports MSC-Nastran 2016 and NX-Nastran 11 by default


16.05.2023 CDH/AMLS V5.2 & FastFRS V2.2 (revision 188)

CDH/AMLS version5.2 und CDH/FastFRS 2.2 (revision 188) steht zum Download zur Verfügung.

07.03.2023 GNS Generator4 V1.8.1

Release Version steht zum Download bereit.

13.01.2023 GNS Animator4 V2.6.2

Release Version steht zum Download bereit.

15.11.2022 CDH/AMLS V5.2. & FastFRS V2.2 (revision 179)

CDH/AMLS version5.2 und CDH/FastFRS 2.2 (revision 179) steht zum Download zur Verfügung.