Integrating Design and Analysis Into a PDM Environment

1
Integrating Design and Analysis Into a PDM
Environment

• Keith Hunten, P.E.
• Lockheed Martin Aeronautics

2
Overview

• Enterprise Design and Analysis Information
  Integration with ISO 10303-209
• Critical and Detailed AP209 - Based PDM Concepts
• An AP209 Integrated Iterative Design - Analysis
  Cycle
• Conclusions

3
Enterprise Design and Analysis Information
Integration with ISO 10303-209

• Enables sharing of PDM
• controlled composite and
• metallic design, analysis,
• material properties/specs information
• Enables automated, electronic feedback of product
  shape, performance, and property analyses to CAD
  with respect to PDM product structure and
  versioning
• Platform to extend engineering analysis STEP
  coverage into other analysis disciplines such as
  Fluid Dynamics
• Provides a long term, potentially growing,
  repository crucial to many industries and vendors
• Neutral format for PDM/CAD/CAE

4
Standard PDM Design Information Management

• Indentured list of assemblies and components
• Configuration and revision management
• Associated data management
• Design shape model(s)
• Other related design information

5
Critical AP209-Based PDM Concepts
Allow Analysis to Revise Independently of Related
Design
Next Higher Assembly / Version
Separate, Versioned Analysis
Part / Version
Analysis Design Version Relationship
Analysis / Version
Part / Version
Analysis Documents
Design Documents
Three Classes of Shape
Nominal Design Shape File
Idealized Analysis Shape File
Analysis Shape and Report File(s)
6
Detailed AP209 PDM Concepts
Part
Analysis
Analysis Design Version Relationship
Part Version
Analysis Version
Assembly
Analysis Discipline Product Definition
Design Discipline Product Definition
Nominal Design Shape
Idealized Analysis Shape
Finite Element Analysis Shape
7
An AP209 Integrated Iterative Design - Analysis
Cycle

• Key features include
• The management of nominal and idealized shapes
• Multiple idealized shapes
• Multiple analyses
• Electronic feedback of analysis modifications and
  recommendations to design

8
Details of an AP209 Integrated Iterative Design
- Analysis Cycle
Part1_Version1
Analysis1_Design1_ Version_Relationship1
Analysis1_Version1
Analysis1
Part1
FEM1
Nominal Design Shape
Design Step 1
Analysis Step 2
Idealized Analysis Shape1
Analysis_Design_ Version_Relationship2
Analysis2_Version1
Analysis2
Part1_Version2
FEM2
Analysis Step 3
Next_Higher_ Assembly1
Idealized Analysis Shape2
Analysis_Design_ Version_Relationship3
Analysis2_Version2
Analysis Report Representation
Assembly1
FEM3
Analysis Step 4
Idealized Analysis Shape3
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AP209 Enables Analysis Feedback to Design

• The original Part1 and its nominal design shape
  (NDS1) for a point of reference (node to hook
  into PDM)
• Part1_Version2, the final Analysis_Version2
  (FEM3) and the idealized analysis shape that
  reflects the performance requirement changes
  (IAS3)
• The analysis report containing the rationale
  documenting the design changes (modes/frequencies,
  stiffener buckling, model idealization and
  tuning process)

Part1_Version1
Analysis2
Analysis_Design_ Version_Relationship1
Analysis2_Version2
Part1
NDS1
FEM3
Cross-Section Shape Representation
Analysis Report Representation
Part1_Version2
IAS3
10
Integration of Design and Analysis Information in
a PDM is a Powerful Systems Integration Approach

• ISO 10303-209 provides a standardized meta-model
  for the implementation of PDM Design - Analysis
  data management
• PDM Customization straight-forward
• Automation of a PDM - managed Design - Analysis
  cycle furthers the goal of truly integrated
  systems
• AP209 provides a standardized capability to share
  information between Design and Analysis
  disciplines