Overview of STEP Protocols for Space

1
Overview of STEP Protocols for Spaceand Current
Implementations

• Eric Lebègue - Espri Concept
• (Eric.Lebegue_at_esprico.fr)
• ESA / NASA Meeting
• NASA Goddard - July 16th, 1999

2
Contents

• A few words on Espri Concept
• Data exchange history in the European Space
  Industry
• STEP and the Space protocols map
• The Space Tools Suite
• On going activities and Conclusion

3
A few words on Espri Concept(http//www.espri-con
cept.com)

• A Software Service Company from France
• Origins The Space Industry
• Purpose Enhancing Co-operation
• Expertise Technical Data Exchange and
  Management
• Staff 80, Turn-over (end 98) 30 MF
• 4 offices Sophia-Antipolis, Paris, Cannes,
  Toulouse
• Main customers ESA, CNES, Alcatel Space, PSA,
  EDF...

4
Yesterday's situation in European space thermal
analysis data exchange
... other CAD tools
CORATHERM (Alcatel Space)
CADDS (Computervision)
CATIA (Dassault Systemes)
ESARAD (ESA/ESTEC)
EUCLID (Matra Datavision)
ESABASE (ESA/ESTEC)
ESATAN (ESA/ESTEC)
THERMICA (Matra Marconi Space)
FLUOR (CNES)
5
Today the beginning of a solution with SET
(French Standard - CNES Initiative)
... other CAD tools
CADDS
CORATHERM
CATIA
ESARAD
EUCLID
ESABASE
ATS Viewer (Espri Concept)
THERMICA
BAGHERA (CNES, Aerospatiale, Espri Concept)
FLUOR
6
Good exchange reliability with common
import/export libraries
... other CAD tools
CADDS
CORATHERM
Standard SET Interface
ATS Library
CATIA
ESARAD
ATS Library
ATS Library
EUCLID
ESABASE
ATS Library
ATS Library
ATS Library
ATS Viewer (Espri Concept)
THERMICA
ATS Library
ATS Library
BAGHERA (CNES, Aerospatiale, Espri Concept)
ATS Library
FLUOR
7
Starting today better exchange with STEP
(International Standard - ISO 10303)
... other CAD and PDM tools
CORATHERM
Agile
ProEngineer
ESARAD
CATIA
THERMICA
EUCLID
IDEAS/TMG
CARAMEL
Baghera View
BAGHERA 2000
NASA tools
PATRAN (MSC)
Dynaworks (Intespace)
ESATAN
8
Starting today data integration around a
database
System Mission
Ground control
Electro- mechanical
Simulation
Design
Antennas
Structural Analysis
...
Thermal Analysis
Integration testing
Propulsion
Production
Optic
9
STEP a complete technology

• An ISO standard (10303) distributed in parts

10
The Space STEP Protocols Map
Product Configuration AP203 / AP214 / PDM
Schema
System Engineering AP233
Technical Data Package AP232
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AP203 CAD data and product configuration

• CAD BREP geometry
• wireframe, surfaces, exact and faceted solids
• available and reliable with most of CAD systems
• product structure and configuration
• contractor / supplier workflow
• work request, work order, actions...

12
AP233 System Engineering

• The system and functional requirements of the
  spacecraft

13
STEP-TAS Thermal AnalysisEnd-user geometry,
meshing, properties orbits
Triangle, rectangle, quadrilateral, disc,
cylinder, cone, sphere, paraboloid thermal
meshing
Associated Thermo-optical properties solar
absorptance infra-red emitance solar and
infra-red transmitance ...
14
STEP-TAS Thermal AnalysisProduct structure and
kinematic
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STEP-PRP Propulsion System

• simulation of propulsion systems using liquid or
  gas thrusters.
• The propulsion systems are considered as networks
  connecting components through connections
• The data can be dimensional parameters of
  components, functional variables, simulation
  parameters or simulation results.

16
STEP-NRFDefinition and results of Analysis, Test
and Operation using Network Models

• Discipline independent
• Campaign
• Phases
• Cases
• Runs
• Nodes nodes relationship
• Properties
• Derivation procedures
• Future HDF binary format

17
AP232 Technical Data Package

• For complete delivery of data packages including
  documents, CAD and analysis models, analysis
  results...

18
An example of using AP232
...
Radcad
Autocad
MS Word
...
ESARAD
Euclid
MS Word
Design Web / Sherpa/ Windchill...
Agile / Baghera
export converter
export converter
Public Exchange DB
API - Converter
Baghera Exchange
Public Exchange DB
Exchange file import/export
Accessed file
URL, address
19
The Space Tools Suite

• A set of software tools for helping the
  implementation of STEP protocols for the Space
  Industry
• Funding by ESA and CNES
• Development, distribution and support by Espri
  Concept

20
High Level Libraries

• Hide the STEP complexity
• Good exchange reliability because all converters
  share the same library

21
Libraries availability

• STEP-TAS Thermal Analysis
• STEP-NRF Analysis, Tests Operations Results
• STEP-PRP Propulsion

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The Baghera 2000 Suite
CAD
Baghera Doc Documentation Management
Analysis
File System
PDM
CAD Service
Analysis Service
File Service
Doc Service
PDM Service
Baghera Exchange Data Packages Delivery
Baghera View Technical Data Visualisation
Baghera i-Web 1 Intranet Consultation
Baghera i-Web 2 Internet Consultation
HTML XML STEP
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Baghera View

• STEP Space Protocols Visualisation
• today STEP-TAS and AP203 CC5
• tomorrow complete AP203, STEP-NRF...
• Exchange checking, technical data reporting,
  data-warehouse viewer, properties edition...

24
Baghera Doc / i-Web 1

• Documents management
• Issue, revisions, reviews
• Baghera i-Web 1 Intranet Consultation

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Baghera Exchange
CAD
Documentation management System
Analysis
File System
PDM
CAD Service
Analysis Service
File Service
Doc Service
PDM Service
Baghera Exchange Data Packages Delivery
Baghera i-Web 2 Internet Consultation
HTML XML STEP

• Independent of the company tools (CAD, analysis,
  PDM)
• APIs for accessing the company data
• Technical Data Packages preparation and
  management
• AP232 delivery
• Baghera i-Web 2 Internet Consultation

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On-going activities

• STEP-TAS converters are under final validation
  and available in September for ESARAD and
  Thermica
• STEP-TASNRF APs standardisation within ECSS and
  ISO TC184
• Baghera View AP203-CC4 CC6, STEP-NRF.
• Windows and Java platforms
• STEP-PRP AP for Propulsion (CNES)
• ARM is ready
• libraries under development
• Baghera Exchange
• export in AP232 XML
• AP232 import API
• Space Tools Suite distribution support
  conditions definitions (prices list)
• Binary format for STEP with HDF (NCSA)
• STEP-NRF harmonisation with EDF
• STEP-NRF implementations (EDF-Atrides,
  CNES-Gaetan, Coratherm, ESATAN,Dynaworks)
• Harmonisation with NASA (STEP-TAS, AP232) ?

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Conclusion

• STEP is ready for implementation and usage !
• STEP provides efficient and reliable data
  exchange to support increasing co-operation
  across boundaries and organisations
• STEP based data exchange will be immediately
  beneficial to projects such as ISS, MSR, ISE...

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Next Events and Contacts

• TFAWS at NASA Marshall, September 13-17 th
• information at http//tfaws99.msfc.nasa.gov
• ISO TC184/SC4 Meeting, New Orleans, October
• proposed special session for application of STEP
  to Space
• information at https//www.uspro.org/
• STEP-TAS http//www.espri-concept.com/step-tas
• TC 184/SC4 http//www.