Abstract
A high-level product representation has been developed and implemented, using design features for part description and mating conditions between features for the relationships among parts. The underlying ideas are that features are necessary for effective design representation; that spatial and functional relationships among parts of an assembly are best expressed through mating conditions; that assembly features of a part may, at times, be different from its manufacturing features; and that a good representation system should be natural, intelligent, comprehensive, interactive, and should be integrated with a visual display. Some new mating conditions have been defined and classified. Several problems concerning the use of features with mating conditions are discussed. Use of the representation system is demonstrated through drawings and data-structures of example products, both simple and reasonably complex.
Qamar, Sayyad Zahid (1993). Representing mechanical assemblies with features and mating conditions. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1993 -THESIS -Q1.