# Presentation: 198802

## 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
- STEP and the Space protocols map
- The Space Tools Suite
- On going activities and Conclusion

## 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...

## Yesterday's situation in European space thermal analysis data exchange

**CORATHERM**
**(Alcatel Space)**

**... other CAD tools**

**ESARAD**
**(ESA/ESTEC)**

**ESABASE**
**(ESA/ESTEC)**

**THERMICA**
**(Matra Marconi Space)**

**ESATAN**
**(ESA/ESTEC)**

**CADDS**
**(Computervision)**

**CATIA**
**(Dassault Systemes)**

**EUCLID**
**(Matra Datavision)**

**FLUOR**
**(CNES)**

## Today : the beginning of a solution with SET (French Standard - CNES Initiative)

**EUCLID**

**ESARAD**

**ESABASE**

**FLUOR**

**THERMICA**

**CATIA**

**CADDS**

**... other CAD tools**

**ATS Viewer**
**(Espri Concept)**

**BAGHERA**
**(CNES, Aerospatiale,**
**Espri Concept)**

**CORATHERM**

## Good exchange reliability with common import/export libraries

**EUCLID**

**ESARAD**

**ESABASE**

**FLUOR**

**THERMICA**

**CATIA**

**CADDS**

**... other CAD tools**

**ATS Viewer**
**(Espri Concept)**

**BAGHERA**
**(CNES, Aerospatiale,**
**Espri Concept)**

**CORATHERM**

**ATS Library**

**ATS Library**

**ATS Library**

**ATS Library**

**ATS Library**

**ATS Library**

**ATS Library**

**ATS Library**

**ATS Library**

**Standard SET Interface**

## Starting today : better exchange with STEP (International Standard - ISO 10303)

**EUCLID**

**ESARAD**

**THERMICA**

**IDEAS/TMG**

**CATIA**

**Pro*Engineer**

**... other CAD and PDM tools**

**BAGHERA 2000**

**PATRAN**
**(MSC)**

**Dynaworks**
**(Intespace)**

***NASA tools***

**ESATAN**

**CORATHERM**

**Agile**

**Baghera View**

**CARAMEL**

## Starting today : data integration around a database

**System **
**& Mission**

**Design**

**Structural**
**Analysis**

**Thermal **
**Analysis**

**Optic**

**Production**

**Simulation**

**Ground**
** ****control**

**Integration**
**& testing**

**...**

**Antennas**

**Propulsion**

**Electro-**
**mechanical**

## STEP : a complete technology

**An ISO standard (10303) distributed in parts**

- The Space STEP Protocols Map

**Product Configuration : AP203 / AP214 / **
**PDM Schema**

**System Engineering : AP233**

**Technical Data Package : AP232**

## 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...

## AP233  System Engineering

- The system and functional requirements of the spacecraft

## STEP-TAS : Thermal AnalysisEnd-user geometry, meshing, properties & orbits

***Associated Thermo-optical properties***
*solar absorptance*
*infra-red emitance*
*solar and infra-red transmitance*
*...*

***Triangle, rectangle, quadrilateral, disc, cylinder, cone, sphere, paraboloid...***
***+ thermal meshing***

## STEP-TAS : Thermal AnalysisProduct structure and kinematic

## 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.

## STEP-NRFDefinition 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

## AP232 : Technical Data Package 

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

## An example of using AP232

**...**

**Design Web / Sherpa/ Windchill...**

**Radcad**

**API - Converter**

**Autocad**

**MS Word**

**...**

**Agile / Baghera**

**ESARAD**

**Euclid**

**MS Word**

**Baghera Exchange**

- Public
- Exchange
- DB

- URL, address

*export converter*

*export converter*

- Public
- Exchange
- DB

*Exchange file import/export*

- Accessed file

## 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

## High Level Libraries

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

## Libraries availability

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

## The Baghera 2000 Suite

**Baghera Exchange**
*Data Packages Delivery*

**Baghera View**
*Technical Data Visualisation*

**CAD**

**Baghera Doc**
*Documentation Management*

**Baghera i-Web 1**
*Intranet Consultation*

**Analysis**

**File System**

**CAD **
**Service**

**PDM**

**Analysis **
**Service**

**File **
**Service**

**Doc **
**Service**

**PDM **
**Service**

**Baghera i-Web 2**
*Internet Consultation*

*HTML*
*XML*
*STEP*

## 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...

## Baghera Doc / i-Web 1

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

## Baghera Exchange

- 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

**Baghera Exchange**
*Data Packages Delivery*

**CAD**

**Documentation **
**management System**

**Analysis**

**File System**

**CAD **
**Service**

**PDM**

**Analysis **
**Service**

**File **
**Service**

**Doc **
**Service**

**PDM **
**Service**

**Baghera i-Web 2**
*Internet Consultation*

*HTML*
*XML*
*STEP*

## 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...) ?

## 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...

## 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.