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Overview of STEP Protocols for Space and Current Implementations. Eric Lebègue - Espri Concept (Eric.Lebegue@esprico.fr) ESA / NASA Meeting NASA Goddard - July 16th, 1999. Contents. A few words on Espri Concept Data exchange history in the European Space Industry

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Overview of STEP Protocols for Space and Current Implementations


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    1. Overview of STEP Protocols for Spaceand Current Implementations Eric Lebègue - Espri Concept (Eric.Lebegue@esprico.fr) ESA / NASA Meeting NASA Goddard - July 16th, 1999 Overview of STEP Protocols for Space and Current Implementations 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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    3. A few words on Espri Concept(http://www.espri-concept.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... Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    4. Yesterday's situation in European space thermal analysis data exchange ... other CAD tools CADDS (Computervision) CORATHERM (Alcatel Space) CATIA (Dassault Systemes) ESARAD (ESA/ESTEC) EUCLID (Matra Datavision) ESABASE (ESA/ESTEC) ESATAN (ESA/ESTEC) THERMICA (Matra Marconi Space) FLUOR (CNES) Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    5. SET-ATS Today : the beginning of a solution with SET (French Standard - CNES Initiative) ... other CAD tools CORATHERM CADDS CATIA ESARAD EUCLID ESABASE ATS Viewer (Espri Concept) THERMICA BAGHERA (CNES, Aerospatiale, Espri Concept) FLUOR Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    6. SET-ATS Good exchange reliability with common import/export libraries ... other CAD tools CORATHERM CADDS Standard SET Interface ATS Library CATIA ESARAD ATS Library ATS Library EUCLID ATS Library ESABASE ATS Library ATS Library ATS Viewer (Espri Concept) THERMICA ATS Library ATS Library ATS Library BAGHERA (CNES, Aerospatiale, Espri Concept) FLUOR Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    7. ATS-TAS Library ATS-TAS Library STEP (TAS,NRF, PRP ,AP203,214,209) ATS-TAS Library ATS-TAS Library PRP/NRF Library ATS-TAS Library TAS/NRF/PRP Library NRF Library NRF Library Starting today : better exchange with STEP (International Standard - ISO 10303) ... other CAD and PDM tools CORATHERM Agile Pro*Engineer ESARAD CATIA THERMICA EUCLID IDEAS/TMG CARAMEL Baghera View BAGHERA 2000 NASA tools PATRAN (MSC) Dynaworks (Intespace) ESATAN Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    8. STEP Space Protocol Databases 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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    9. Application protocols = use case of IRs (parts 200 - 299 or STEP-TAS/NRF) { Standard data models Integrated Resources = generic and specific components (parts 41 - 199 & Space Integrated Resources) EXPRESS = Formal description of data models (part 11) { Modelling and programming tools SDAI = Programming standards (C, C++, IDL,JAVA…) (parts 22 - 26) { CORBA-TCP/IP STEP DB Binary format ? XML ASCII format (part 21) Physical layers STEP : a complete technology • An ISO standard (10303) distributed in parts Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    10. Documentation : PDF Mechanical and assembly design : AP203/AP214 Electrotechnical design : AP210/AP212 Structural Analysis : AP209 Thermal Analysis : STEP-TAS Results of Analysis, Test & Operation Campaigns : STEP-NRF Propulsion : STEP-PRP Mass-Centre-Inertia : STEP-MCI (subset of AP214) Optical Analysis : NODIF ... System product definition Analysis / simulation Results and delivery The Space STEP Protocols Map Product Configuration : AP203 / AP214 / PDM Schema System Engineering : AP233 Technical Data Package : AP232 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    11. 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... Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    12. PHYSICAL BEHAVIOR BEHAVIOR REQUIREMENT REQUIREMENT REQUIREMENT DATA FUNCTIONS DATA FUNCTIONS DATA FUNCTIONS CONFIGURATION MANAGEMENT CONFIGURATION MANAGEMENT GRAPHICAL REPRESENTATION AP233 System Engineering • The system and functional requirements of the spacecraft Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    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 ... Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    14. STEP-TAS : Thermal AnalysisProduct structure and kinematic Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    15. 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. Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    17. AP232 : Technical Data Package • For complete delivery of data packages including documents, CAD and analysis models, analysis results... Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    18. ... Word or PDF STEP-TAS AP232 Exchange File An example of using AP232 MS Word Autocad Radcad ... MS Word Euclid ESARAD ... 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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    20. End-user Applications (ex: ESARAD, TRASYS...) is loaded in calls High Level Libraries C, C++, Fortran, JAVA… (Espri Concept) is loaded in calls SDAI C Library (ISO-10303-24) (St-Developer - STEP Tools Inc.) is loaded in Native format AP EXPRESS AIM AP EXPRESS ARM STEP-21 ASCII Physical file High Level Libraries • Hide the STEP complexity • Good exchange reliability because all converters share the same library Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    21. Libraries availability • STEP-TAS : Thermal Analysis • STEP-NRF : Analysis, Tests & Operations Results • STEP-PRP : Propulsion Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    22. The Baghera 2000 Suite CAD Analysis File System Baghera Doc Documentation Management 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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    23. 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... Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    24. Baghera Doc / i-Web 1 • Documents management • Issue, revisions, reviews… • Baghera i-Web 1 : Intranet Consultation Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    25. Baghera Exchange CAD Analysis File System Documentation management 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 Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    26. On-going activities • STEP-TAS converters are under final validation and available in September for ESARAD and Thermica • STEP-TAS&NRF 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…) ? Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    27. 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... Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999

    28. 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. Overview of STEP Protocols for Space and Current Implementations ESA / NASA Meeting, NASA Goddard, July 16th, 1999