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Unformatted text preview: hesis. The actual solutions are very specific and are described to the users as black boxes. It is very difficult to understand the models implemented and the results provided. The solution is not totally satisfactory for industry. A lot of uncertainty sources between functional needs and results on actual parts and actual assemblies are not controlled. Salomons et al. in CAT 1997 [Salomons et al., 1997] have proposed a review on “Current status of CAT Systems” for tolerance analysis. The study based on academic papers and also on four commercial systems (CATIA 3D FDT from Dassault Systèmes, TI/TOL3D+ form Texas Instruments, VSA-3D from VSA Inc and Valysis from Tecnomatix) points out a main difference between them, the two first analyze one “sample” of an assembly and are based on a linear algebraic problem, the two second 35
J.K. Davidson (ed.), Models for Computer Aided Tolerancing in Design and Manufacturing, 3 5 – 44. © 2007 Springer. 36 L. Mathieu and A. Ballu require a large number of “samples” to achieve reasonable accuracy and are based on statistics....
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.
- Spring '10
- The Land