Computer Methods for Tolerance Design
This book describes recent research advances and computer tools that can be applied in the determination of geometric tolerances. A framework for tolerance synthesis is developed and used with artificial intelligence techniques to provide computer methods for both analysis and synthesis of geometric tolerance specifications. Tolerance primitives, based on a sound theory of tolerancing, are used to represent tolerance relationships or links between geometric entities and functional requirements. Algorithms are developed for the determination of boundedness and the measurement of sufficiency. A detailed constraint network is used to represent tolerance relations for a part under design and provide for the composition of tolerance specifications.
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Review of Related Research
Framework For Tolerance Synthesis
Primitives For Reasoning About Tolerances
Analysis Tasks and Sufficiency
Synthesis Tasks and Composition
Guiding Design and Explanation
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abs(al aframe to enforce Algorithm approach assembly requirement associated bearing design Bearing Example boundary representation bounded calculations CASCADE-T Chapter computing concurrent engineering cond2 condition of instance conditional tolerance relationships condl condS constraint network constraint propagation constraints to frame COULD-BE-CALCULATED-WITH coupled functional requirements cylindrical hole datum system defined defun described design and manufacturing design requirements detailed determined DETERMINED-BY SLOT developed dimensions equations equivalence class evaluated feasible frame aframe framework for tolerance geometric constraints geometric features geometric tolerances graph height-1 IDEEA implemented Knowledge-Based Engineering Length-1 material bulk requirement methods necessary condition net2 netb no—value nominal solid orientation tolerance Primitive Constraint Explanation primitive solids Prism query requirement conditional tolerance returned DISMISS Running rule solid modeler SUM SLOT tasks techniques Tolerance Analysis Example tolerance assertions tolerance constraints Tolerance Primitive Constraint tolerance representation tolerance specification tolerance synthesis tolerancing Trace of Tolerance validity variables variational class virtual surfaces WHICH-CYCLES
Page 135 - Graph-based heuristics for recognition of machined features from a 3D solid model," Computer- Aided Design, Vol 20, No 2, pp.