Transcript 3DCS Tolerance Analysis

3DCS FEA Compliant Modeler
Variation Modeling with Compliant
Parts & Assemblies
© Dimensional Control Systems Inc. 2007
Clamp/Weld Clamp/Weld
Assembly variation with deformable parts
Accurate and realistic rendering
Seamless integration within 3DCS
3DCS FEA Compliant Modeler Module
What is it?
© Dimensional Control Systems Inc. 2007
The 3DCS FEA Compliant Modeler is an add-on module to 3DCS
which utilizes Finite Element Methods to accurately simulate
variation of compliant parts and assemblies.
3DCS FEA Compliant Modeler Module
What does it do?
© Dimensional Control Systems Inc. 2007
3DCS FEA Compliant Modeler simulates compliant part deformation
resulting from manufacturing operations such as clamping, welding,
unclamping, and force application.
3DCS FEA Compliant Modeler Module
How does it work?
The 3DCS FEA Compliant Modeler deforms the parts during
simulation based on the part stiffness matrix for each compliant
part that has been imported into the 3DCS model.
The part stiffness matrix defines how a deformation at one point will affect other areas
of the part – where, and how severely.
Clamp/Weld Clamp/Weld
© Dimensional Control Systems Inc. 2007
The FEA Mesh and stiffness matrix is acquired from software like
Abaqus, Hypermesh and NASTRAN.
3DCS FEA Compliant Modeler Module
How is it different?
Current Method - Rigid
New Method – FEA based
Engineering assumptions
3DCS FEA Compliant Modeler
All parts assumed rigid or
assumptions made to
define bending of
compliant parts.
Utilizes the stiffness matrix from
FEA software to accurately reflect
compliant parts and their
interactions within a model.
Deficiencies:
× Only as good as the
assumptions made
Benefits:
 Accurately predict variation of
compliant parts & assemblies
× Modeler must have
 No Guess work for modeler
 Easy interface to learn & use
 Visualize the effects of part
knowledge of how
compliant parts react
© Dimensional Control Systems Inc. 2007
Variation Analysis modeling methods for compliant parts
deformation
3DCS FEA Compliant Modeler Module
• Process / products that include
compliant / flexible parts.
• Product / Manufacturing engineering for
assembly.
– Virtually all areas of multi-part assemblies
including the machines that make the parts
• Fabrication process development.
– Multi stage machining process
© Dimensional Control Systems Inc. 2007
Where can it be used?
3DCS FEA Compliant Modeler Module
Placement in DCS product line
3DCS®
GDM-Web®
Integrated 3D
Tolerance
Analysis
3DCS FEA
Compliant Modeler
DCS Technologies to
connect your design
and manufacturing Graphical SPC
Reporting and
process
Analysis
GDM-3D®
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Geo-Factor®
3DCS FEA Compliant Modeler Module
What are the Benefits?
FEM/FEA
incorporated
into 3DCS Model
© Dimensional Control Systems Inc. 2007
•Accurately simulate variation of compliant assemblies.
•No guess work by engineer to estimate the effects of
compliant assemblies (bending, welding, clamping,
spring-back…).
3DCS FEA Compliant Modeler Module
For additional information contact
DCS at:
Phone: 1.248.269.9777
Email: [email protected]
© Dimensional Control Systems Inc. 2007
Thank you for your attention
3DCS FEA Compliant Modeler Module