This paper reports on part of a project related to the development of a computer model for GD&T (Geometric Dimensioning and Tolerancing) to support tolerance specification, validation and tolerance analysis. The paper examines the basic elements involved in geometric variation and their interrelations. Logical tolerance classes are defined in terms of a target, a datum reference frame, and metric relations. ASME Y14.5 tolerance classes are mapped to these logical classes. The development of a data model for GD&T and its application in supporting design specification, validation, and tolerance analysis are discussed.
Computer Modeling of Geometric Variations in Mechanical Parts and Assemblies
Contributed by the Computer Aided Product Development (CAPD) Committee for publication in the JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING. Manuscript received November 2002; Revised February 2003. Guest Editor: A. Desrochers.
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Wu,, Y., Shah , J. J., and Davidson, J. K. (May 15, 2003). "Computer Modeling of Geometric Variations in Mechanical Parts and Assemblies ." ASME. J. Comput. Inf. Sci. Eng. March 2003; 3(1): 54–63. https://doi.org/10.1115/1.1572177
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