Hierarchical Reasoning Model of Tolerance Information and Its Using in Reasoning Technique of Geometric Tolerance Types

Authors:
Yi Zhang;Zongbin Li;Jikong Wang
Affiliations:
State Key Laboratory for Manufacturing Systems Engineering of China School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China 710049;State Key Laboratory for Manufacturing Systems Engineering of China School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China 710049;State Key Laboratory for Manufacturing Systems Engineering of China School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China 710049
Venue:
ICIRA '08 Proceedings of the First International Conference on Intelligent Robotics and Applications: Part II
Year:
2008

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New reasoning algorithm for assembly tolerance specifications and corresponding tolerance zone types

Computer-Aided Design

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Abstract

On the basis of study of variational geometric constraints, a kind of hierarchical representation model of tolerance information reasoning is presented. Using the polychromatic sets, the feature tier and variational geometric constraint tier of this model are described. Then, using the reasoning relation matrix between unified colours and individual colours of the polychromatic sets, the reasoning of the feature tier and variational geometric constraint tier is realized, and the method and process of the reasoning are presented. Finally, its using in the generation of tolerance network for assembly is introduced.