In partnership with AFNeT Standards Days 2021 : 1 & 2 June 2021 Metrology associated to RV&V using STEP AP242 : the Promethea project By Frédéric Chambolle (Stellantis)/Alexandre Loire (GALIA)
In partnership with
AFNeT Standards Days 2021 : 1 & 2 June 2021
Metrology associated to RV&V using STEP AP242 : the Promethea project
ByFrédéric Chambolle (Stellantis)/Alexandre Loire (GALIA)
Some facts§ Non-compliance is the major quality problem in the automotive industry§ Services development in the industrialization phase generates too many additional costs related to changes
=> Data handled are not sufficiently valued
Project objectives§ Put in place a digital supply chain integrating statistical methods at every design and manufacturing milestone, from
customer’s needs and operation defects collection, up to the measurement of the produced part/composant, with feedback to engineering=> To improve product/process benefits compliance convergence in development stage to series production § Phase 1 : Managing better compliance with a more seamless data exchange with suppliers§ Phase 2 : Using statistical/data science methods to design and measure at the strict optimum
Decision support to meet Quality, Cost, Deadline, Benefits of vehicle projects
PROMETHEA : A virtuous loop for the product Life Cycle
Robust Product/Process Design Approach (Example on a car door)
Providingcustomer C :
Doormaneuver
Measurable technicalspecification Yi :
Minimum colsing spdProduct influent parameters Xi : -door gasket gap-off-centering gate lock-joint compressibility …..
X1
Xi
Xi Specification
Y =f(Xi)
X1
Xi
IT on YX2
Xp
Negotiation according to feasibility
Y : Closing speed
X2
X1
X3 X4
X7
X5
X6
Y = a0 + a1*X1 + a2*X2 +…+ a7*X7 +/- U m/s
Y=f(X) Breakdown
Specification and dimensioning step
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Y value monitoring Xi values monitoring
§ “Control Plan”: use of internal data and suppliers=> Drive parts compliance=> Management of service convergence=> Monitoring optimization
Qualification and monitoring step
Robust Product/Process Design Approach
PROMETHEA Phase 1
Context : example of a part used as the basis for the prototype Clearance Bonnet / Projector
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clearance fit
PROMETHEA Phase 1 – 3 steps
Definition of a standard data model leading to a data exchanges GALIA homologation
Data import interface standardisationDevelopment of the data model implementation guide based on STEP AP242 xml
Development of prototype exploiting measurements in production according to 3 use cases
Product/process feasibilityProduct/process convergence and process capability (ramp up)Quality monitoring (serial life)
Prototype industrialisation on car body partsStandard data model integration Tier1 1 and above deployment
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QUALITY Customers: ARCHITECT, Real time production Analysis, Quality leader…
In the event of a quality crisis, the objective is to automatically identify the non-conforming characteristics of the potentially incriminated parts
FAISABILITYRetrieve the information to size the design at the beginning of the project.
Customers: Manufacturer, Architect, Designer, Specialists, Geometre
MeasuresReal time productio
n
Results: Bonnets projects
PROJECT CONVERGENCE
Ensuring the correct convergence of requirements- preparation of "milestone" passages on a project in the industrialization phase..- Geometric analysis
Customers: Supplier, Design, Quality, Geometry leader, etc…
Compliance
Compliance management
Results:
Prototype operating measures in production according to 3 UC
PROMETHEA Phase 1
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Overview
Operating principle of the prototype based on KARREN (company DPS)
Links with RV&V Ø Participation to the workgroup to present our mechanical
perspective
Publications of PROMETHEA Phase 1 on www.galia.com
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White Paper Implementation Guide
PROMETHEA Conceptual Data model
STEP AP242 Business Object Model was selected as exchange format by taking into its capabilities (data model, XML encoding) in comparison with PROMETHEA needs.
PROMETHEA Data model
Each object ischaracteristizedby attributes
Physical measured part
Physical measured part
OEM & SupplierPart
Part
PartVersion
PartView
OEM & SupplierOrganization
Organization
OrganizationRelationship
Requirement type
RequirementView
RequirementVersion Requirement
Classification
RequirementAssignment
Requirements properties
PropertyValue
PropertyDefinition
Numerical value
IndividualPartView
IndividualPart
IndividualPartVersion
PartToIndividualPartAssociation
Measurement result
IndividualPartTestResult
Manufacturing dateMeasurement date
DateTimeAssignment
DateTimeString
Role=productionDescription = Measure
Role=productionDescription = Manufacturing
Declarationof characteristicsto be measured
PlannedCharacteristic
Measurement to be realized
Measured values
PropertyValue
PropertyDefinition
PropertyValue
Numerical value Numerical value
GALIA attribute valuesMES_OF, MES_Batch
PropertyValue
PropertyDefinition
PropertyValueAssignment
String value
1 IndividualPartTestResultper measurement
1 IndividualPartper measured part
OEMProject
Project
Role=project scope
ProjectAssignment
Frédéric CHAMBOLLE – Groupe PSA – February 2020
Activity
PROMETHEA exchange data model : STEP AP242 Ed. 1 subset
OrganizationOrPersonInOrganizationAssignment
Role=supplier/customer
Conclusion & Perspectives
Contribution to STEP AP 242 ed2 Quality Standard for the X-CEED project Ø Used in the blockchain for traceability of geometrical characteristics for conformity
Links with RV&V Ø PROMETHEA Model provides a link between 3D parts – requirements – physical partsØ Participation to the workgroup to present our mechanical perspectiveØ Interest to share our STEP AP 242 approach with Aerospace’s
ConclusionØ Demonstration that STEP AP 242 can be used in other domains : Big data, Blockchain, etc…Ø Breaks the walls between Design and ManufacturingØ Standard for Mechanical Industry?
http://standardsdays.afnet.fr
http://standardsdays.afnet.fr
Questions &
Answers
1st and 2nd June