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1

AeroSpace and Defence

Industries Association of Europe

PDT Europe 2016 – Paris, 10th of November

Preparing European A&D to use ISO STEP AP209 ed2

“Multidisciplinary Analysis and Design”

Albert Lévy, CIMPA

on behalf of Airbus EZMBB

Slide 2 ASD SSG Nov. 2016

Preparing European A&D to use ISO STEP AP209

Content

• Overview of the ASD SSG “Simulation interoperability” Working Group

• Overview of STEP AP209 edition 2

• Business needs/Benefits for STEP AP209

• LOTAR Engineering Analysis and Simulation Working Group (EAS WG)

• LOTAR EAS Pilot Study

• Creation of the CAE Implementor Forum

• Implementation of STEP AP209 by European A&D

• Synthesis and Business value of using STEP AP209



Overview of the ASD SSG

“Simulation interoperability” WG

http://www.asd-ssg.org/simulation-interoperability



What is STEP AP209 (ISO 10303-209)?

• STEP AP209 edition 2 « Multidisciplinary analysis and design »

is an international standard for sharing, exchange and long term archiving of

engineering design and multi-disciplinary simulation data

managed in configuration.

• Within STEP AP209, design and analysis have separate but related product

definitions, which allows both activities to be independently controlled.

• Many types of analyses may be attached to the same product.

Design Analysis



Overview of STEP AP209 edition 2

“Multi-Disciplinary Analysis and design”

PDM SDM

CAD

AP209 integrates 4 domains:

CAD, CAE, SDM and PDM

SDM : Simulation Data Management

CAD : Computer Aided Design

CAE : Computer Aided Engineering

PDM : Product Data Management

STEP

AP 209

CAE

STEP AP209public website

http://www.ap209.org/




Scope of STEP AP209 edition 2

Computer Aided Design

• 3D Solids

• Surface Lofts

• Structural Layouts

Analysis Geometry

• Idealized for Loads

• Idealized for Structures

• Idealized for Aero

Finite Element Models and Analysis

• Linear Statics

• Panel Aero

• CFD

Product Data and Metadata

• Product Structure

• Analysis Structure

• Configuration Data

• Material Specification

Simulation disciplines covered today by STEP AP209 ed2 are:

Structural Finite Element Analysis

Computational Fluid Dynamics

Kinematics



Overview of STEP AP209 Recommended

Practices

Structure of last issue of STEP AP209 ed2 Recommended Practices

(v2.0, 2016-03-30):

A tutorial to the standard is in preparation

Training sessions (including on-line materials) will be developed

1. Introduction

2. Using AP 209 ed2

2.1. General

2.2. People and Organizations

2.3. Dates and Times

2.4. Approvals

2.5. Security

2.6. Units of Measure

2.7. Shape

2.8. Parts in AP 209 ed2

2.9. Materials and Properties

2.10. Retention

2.11. Analyses in AP 209 ed22.11.1. Identifying Analyses

2.11.2. Relating Analysis Shape to Analysis

2.11.3. Finite Element Analysis

Appendix A Physical File Example

Appendix B Units Examples

Appendix C Finite Element Model Result Structures

Appendix D Directionally Explicit Element Layout

Link to AP209 Rec. Practices

https://www.cax-if.org/joint_testing_info.html#recpracs

https://www.cax-if.org/joint_testing_info.html#recpracs



Process &

use cases

Information

Product Life Cycle

Standards for Engineering processes and methods not described

Concept Simulation Definition Manufacture Support Disposal

Systems

Engineering

Electronic assembly,

interconnect & packaging design

Multi-disciplinary Analysis & design

Integrated

CNC Machining

Engineering Properties for

product design & verification

Product Life

Cycle Support

Managed Model Based

3D Engineering

AP 242 ed2

AP239ed2

AP 238ed1

AP233ed1

AP 210ed3

AP 235ed1

AP209ed2

AP238 ed2 in dev. (launch: May 2016)

“An Integrated model for Manufact.”

Suite of

AIA - ASD

ILS Specs (SX000)

Based

on PLCS

Modular STEP standard

NON Modular STEP standard

AP = Application Protocol

Xxx

(ed2)Only contained in AP 242 ed2

AP209 ed3 in dev. (Launch May 2016)

AP239 ed3 in dev. (Launch Jan. 2016)

AP235 ed2 in dev.

Illustrative view – to highlight the interdependancies

AP209 ed2 is a superset of AP242 ed1, and is part

of the STEP standards suite for PLM interoperability

: Overview of STEP Application Protocols



Business needs for STEP AP209

• Typical business needs for using STEP AP209 are:

Integration between heterogeneous authoring applications (i.e. CATIA V5,

Creo Parametric, PATRAN, NASTRAN, FLUENT, NX Thermal, Simulia…)

Simulation for the digital twin

Visualization of simulation models and results (mesh, fields...)

Long term archiving and retrieval

Data exchange

Data migration.

• Today data exchange of engineering data seems to be covered by direct

interfaces maintenance issue

• Long term archiving requires the use of a « standardized open format »

The use of STEP is well developed for CAD 3D MBD and PDM interoperability.

STEP AP209 provides promising capabilities for CAE interoperability.



Benefits of STEP AP209

• Standardized information model and open format

- Stable, documented, non-proprietary

• Integration with ISO STEP AP242 ed1 “Managed model

based 3D engineering”

- STEP: comprehensive set of standards for the full product lifecycle

• Associativity Design/Analysis

- Loads and constraints can be applied either to elements of the mesh or to

geometric elements (i.e. all the nodes attached to this mesh element)

• Data model shared by many simulation disciplines

- Enabler for multi-disciplinary simulation



LOTAR Engineering Analysis & Simulation Working Group

(EAS WG)

LOTAR EAS Working Group was created in 2014,

co-led by Airbus and Boeing.

LOTAR EAS Team members

LOTAR EASpublic website

http://www.lotar-international.org/lotar-workgroups/engineering-analysis-simulation.html




LOTAR EAS WG - Overall domain

and current scope

Phase 1 Scope• Structural Analysis

• Linear, Static, Deterministic

• Finite element method (h-formulation)

• Metallic and composite materials

Phase 1 Focus• Internal loads

• Total vehicle

• Recover and reuse

previous analysis



LOTAR “Engineering Analysis and Simulation”

Overview on a page

© LOTAR 2016 All rights reserved LOTAR EAS WG 12th Feb. 2015 Page 13

ISO STEP AP209 ed2

5, 10, 15, 20, 30,…, or more years

Model Results Context Pedigree

How: Primary Technical Approach

LOTAR International EAS Working GroupOverall project orchestration; User requirements; Test models; LOTAR EAS standard development (NAS/EN 9300-6xx)

CAx-IF & CAE vendorsTranslator development & testing

PDES, Inc., ProSTEP iViP, AFNeTAP209 ed2 development

Users & Member companiesRequirements

NAFEMS, NIST, moreAdditional collaboration

Who: Players & Roles

In an environment of rapidly changing software and hardware, a general requirement exists for access to and viability of digitally formatted engineering assets over the life of the product

Legal drivers Cover certification needs Support litigation Support accident

investigations

Engineering, design & customer support drivers Evaluate changes/improvements Engineer derivatives/conversions Extend payload/range/performance Address customer questions

Evaluate damage Capture knowledge Increase business capability

Why: Business NeedPhase 1 Schedule: 2015-2018Phase 1 Scope: Vehicle-level model &

loads employing linear static FEA

When &

What*:

Original Recovered for review or reuse

Identify Business rqts & Use cases

Prepare test cases

Dev. AP209 rec. practices

Conduct Pilot Study

Create LOTAR Parts

*EAS scope is broad. Other analysis types and disciplines to be addressed in subsequent phases

Launch CAE IF

“Multi-disciplinary analysis and design”


https://www.cax-if.org/

https://www.pdesinc.org/

http://www.prostep.org/en.html

http://www.afnet.fr/

http://nafems.org/

http://www.nist.gov/



LOTAR EAS Pilot Study

(loop test

for B=B)

(loop test

for A=A)

Test4Test3Test2Test1Test Models in native FEM format for input/results1

Vendor A Process:consume native input/results

and generate ISO STEP AP209 ed2 file

Vendor B Process:Consume native input/results

and generate ISO STEP AP209 ed2 file

Processes (including standalone translators) to consume native FEM input/results and generate ISO STEP AP209 ed2 file

2

Test1_AP209e2_A.stp Test1_AP209e2_B.stpISO STEP AP 209 ed2 files3

Cross-feed the ISO STEP AP 209 ed2 files (and perform loop tests)

4

Vendor A Process:Consume ISO STEP AP209 ed2 file and generate native

input/results

Vendor B Process:Consume ISO STEP AP209 ed2 file and generate native

input/results

Processes to consume ISO STEP AP 209 ed2 file and generate native FEM input/results

5

Test4Test3Test2Test1

Test Models in native FEM format for input/results should result in “equivalent outcome” relative to the original input/results

Test4Test3Test2Test1

(cross-feed test for AB=BA)

6



• Pilot study considers first 4 ATS models (NASTRAN format) that will

require implementation of basic AP 209 ed2 data model elements

• Models represent 1D, 2D and 3D finite element abstractions of a

constant section beam with various boundary conditions and loads

• ATS models are identified with ‘ATS’ + model number + ‘m’ +

version

• So far 2 companies have been selected for participation in the pilot:- EPM Jotne

- CT CoreTechnologie

LOTAR EAS Pilot Study (cont’d)

Length : 16.0 inch

Width : 4.0 inch

Height : 2.0 inch

Area : 8.0 square inch

ATS1m4 :Rods

ATS2m4 :Bars

ATS3m4 :Shells

ATS4m4 :Solids



Memoranda of Understanding (MoU)

in the frame of LOTAR EAS

MoU between LOTAR EAS

and NAFEMS

MoU between AFNet,

PDES and ProSTEP iViP

Signed 7 September 2016Signed 23 June 2016



Creation of the CAE Implementor Forum,

as part of the CAx-IF

July 2016

CAx IFPDES Inc, ProSTEP iVIP

and AFNeTKinematics

Electrical

Composite

Mechanical

ALM

CAE

covered

Planned Extension

AP242 e1

AP242 e2

IS in 2014

In dev. planned IS in 2018

IS in 2014AP209 e2

In dev. planned IS in 2018

AP233 e2 in prep.: planned IS in 2018 (TBC)

AP239 e3

Related ISO STEP standards (AP = Application Protocols)Functionality covered / tested

by the Implementer Forum

as a specific Working Group

and associated Airbus priority:

covered

Priority 1 Priority 2

Planned Extension

Mossec e1 in prep.: planned IS in 2019 (TBC)

CAM

IS = International Standard

xDM IF

AFNeT , ProSTEP iVIP

PDES Inc ?

PDM / CM

MB Req. (N1) Management

Maintenance

MBSE.

AssemblyStructure.

SimulationData Mngt.

Modeling & Simul.

N1: Text based and model based



Implementation of STEP AP 2090 ed2

according to the “V” cycle

Published Dec. 2014

CAE IF:

AFNeT –

PDES Inc. -

ProSTEP iViP

TBD



ASD SSG Radar Chart

STEP AP209 component standard

http://www.asd-ssg.org/radar-chart

http://www.asd-ssg.org/radar-chart



Conclusion:

Synthesis - Business value of using STEP AP209

• The use of STEP AP209 by European Aerospace and

Defence industry has been limited so far

• More advanced on the US side

• Everything is now in place to ease the adoption and

operational use of STEP AP209

• Edition 2 was published

• Business value is clear

• Robust interfaces will be developed in COTS tools

• CAE Implementor Forum test rounds will be set up

• Education/Training are being developed

• Future extensions of functionalities of AP209 ed2

• Participation to the STEP AP209 ed3 project (planned start in 2017)





STEP AP209 website: http://www.ap209.org




LOTAR EAS webpage



• Continue integration with AP 242

• Continue STEPmod AP

• Retain current scope

• Structural testing

– Product under test

– Test environment

– Test process

• Correlation between analysis/simulation and testing

• Workflow instruction and feedback data

• Include other types of simulations (PPC item) … electrical simulations may be difficult

• Isogeometric design and analysis (WG12 N8354)

• Binary files implementation method (CGNS/HDF5)

• Usage guidance / Recommended practices

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AP 209 edition 3 scope proposal

2016-05-25

Documents

AeroSpace and Defence Industries Association of Europepdteurope.com/wp-content/uploads/2016/11/5a-Preparation-of-the-use... · AeroSpace and Defence Industries Association of Europe