ESAHomeSpace EngineeringMechanical
Which tool formats are supported?What is new in this version [r2007-03-19]?Which tool formats will be supported in the future?
About thermal control
Spacecraft thermal controlWhat does thermal control do?
Space cryogenics
OverviewStirling and pulse tube coolersJoule Thomson coolersSub-kelvin coolersDensified propellantCryogenic composite tank and line
Heat transport technologies
OverviewCapillary-pumped two-phase heat transport technologyMechanically-pumped heat transport technology
Thermal protection systems
Thermal analysis
Contact us
printer friendly page
TASverter graphical user interface
TASverter graphical user interface
TASverter: Release notes
What is TASverter?
TASverter is a general converter for models used in Thermal Analysis for Space. It has "reader" modules for converting information from the native file formats of a number of [space] thermal analysis tools into an intermediate, internal STEP-TAS representation, and "writer" modules to convert this internal representation into the native file formats of a number of [space] thermal analysis tools.

In fact, TASverter is the cutting-edge technology demonstrator to show the reality of model data conversion and exchange using STEP-TAS. TASverter has been used extensively within ESTEC/TEC-MCV to verify and validate the development on the underlying STEP-TAS protocol using real-world models written for different thermal analysis tools, and is being used as a beacon to light the way for the implementation of STEP-TAS interfaces in the commercial analysis tools.  
Which tool formats are supported?
TASverter is able to both read and write the following formats:

  • STEP-TAS Part21 files. These files conform to the ISO 10302-21 format, the official ASCII text encoding for the exchange of STEP data. Note that although every effort is being made to maintain compatibility as the STEP-TAS standard evolves, until the STEP-TAS protocol is completely frozen it may not be possible to guarantee the use of these files as long-term archive data.
  • ESARAD 5.1 Geometry (erg) files. TASverter now handles cutting operations using dedicated cutting solids rather than approximating them using normal geometric primitives. TASverter does not yet handle kinematic models or mission-related orientation and pointing.
  • THERMICA 3.2 Geometry (SYSBAS) files.
  • TRASYS Geometry (inp) files
In addition, TASverter is able to read the following formats:
  • THERMICA 3.2 Geometry (VIF) files.
  • MSC.NASTRAN 2005 Geometry (BDF) files
  • ESATAN 8.9 results (GFF) files. Note that this is a proof-of-concept prototype that needs further work to handle large results files.
TASverter is also able to write the following formats:
  • PATRAN session (ses) and nodal result (nod) files.
  • Comma separated values (csv) file. This is a simple ASCII format to allow import of results data into spreadsheets, etc. Note that this is a proof-of-concept prototype used to help verify the GFF-reader.

What is new in this version [r2007-03-19]?
The main changes for this version are:
  • Addition of TRASYS reader and writer
  • Addition of NASTRAN reader
  • Updates to the STEP-TAS protocol and dictionary
  • Performance improvements in the code
  • Removal of the html reporting option

Which tool formats will be supported in the future?
That's a difficult question to answer! On the technical side, the latest version of the STEP-TAS protocol means that the foundations are in place to support most of the tools used by the space thermal analysis community. The most obvious upgrades relate to the conformance classes:
  • Inclusion of space mission aspects: the upgrade of the ESARAD and THERMICA modules to CC5
  • Inclusion of kinematic models: the upgrade of the THERMICA module to CC2 and the ESARAD module to CC4
  • Inclusion of space mission aspects and pointing of kinematic geometry: the upgrade of the ESARAD and THERMICA modules to CC6
  • Inclusion of thermal lumped parameter model (without user logic): the development of ESATAN modules to CC8
  • Inclusion of thermal lumped parameter results: the upgrade of ESATAN modules to CC9
  • Other formats under consideration are SINDA-G, SINDA-85
Due to resource limitations it is not possible for the TASverter development team to provide "reader" and "writer" modules for all of the tools in the short term. The relative priority for implementing particular modules still needs to be established in consultation with project groups within ESA that might have specific requirements, and with the representatives of the wider space thermal analysis community.
Last update: 16 April 2007

Direct links
STEP-TAS technical detailsTASverter: Frequently asked questionsTASverter: Installation notesTASverter: Download page
Related links
   Copyright 2000 - 2013 © European Space Agency. All rights reserved.