5'5 Design of Assemblies

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5.5 Design of Assemblies

• Soonhung Han
• shhan_at_kaist.ac.kr
• http//me.kaist.ac.kr/newcourse

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5.5 Design of Assemblies

• Considerations of assembly design
• Kinematics
• Interchangeability of parts
• Geometric arrangement
• Assembly and disassembly (??, ????)
• Collisions and interference

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5.5.1 Assembly Modeling

• Hierarchical relations (components,
  sub-assemblies, assemblies, etc)
• Mating conditions (geometric constraints, fits,
  contact, etc)
• Component/sub-assembly positions (global or
  relative)
• Degree of freedom (possible relative motion)

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part of relation
mating condition
(Low level abstraction)
(High level abstraction)
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5.5.2 Assembly Features

• Definition an association of two form feature
  that are on different parts.
• Benefits
• assembly creation at a higher level
• constraints to be expressed in terms of feature
  dimension
• design change propagation
• Procedural and declarative approach

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