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Unformatted text preview: D software. However, these methods are limited in the types of interactions they can model and in the quality of the results they produce. Determining the variations of the relative positioning of parts with tolerances in an assembly is a key problem in assembly planning [Halperin et al., 2000] and mechanism design [Sacks, 1998]. For example, nearly all assembly planners produce plans for nominal parts. However, because of shape and position variability due to manufacturing imprecision, the relative part positions vary as well. Thus, the nominal assembly plan might not be feasible for certain instances of parts, and a valid plan for one instance might not be suitable for others. In mechanism design, interference between two part instances can occur even when there is no blocking between the nominal parts. The relative position of imperfect planar parts was studied by Turner [Turner, 1990], who reduces the problem to solving a non-linear system of constraints for a given cost function. Sodhi and Tu...
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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