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Proceedings of CAD'14, 2014, 189-191
Tolerance Mathematical Modeling and Analysis Method Based On Control Points of Geometric Elements

Yi Zong, Jian Mao, Shanghai University of Engineering Science

Abstract. In this paper, the tolerance mathematical modeling and analysis method based on control points of geometric elements are proposed, where the geometric tolerance is indicated according to the position variation of control points of geometric elements. This method can be applied in actual tolerance analysis of parts. The calculation results show that the mathematical modeling and analysis methods are in accordance with all relevant tolerance principles and regulations, which have a vital significance in the studying of whole tolerance field. It can also analyze various corresponding tolerance, which can be easily put in combination with CAD entity modeling. It is convenient for tolerance analysis and conversion that can be applied to computer aided tolerance designing and has extensive application in the field of tolerance analysis.

Keywords. Tolerance analysis, mathematical modeling, control points of geometrical elements

DOI: 10.14733/cadconfP.2014.189-191