A Dispersions Based Methodology for Computer Aided Simulation of Assembly Functional Requirements

Abstract

A methodology for automating the simulation of the functional requirements and the synthesis of the functional dimensions during the design stage is modelled step by step using the dispersions method introduced by Bourdet and the minimal transfer method of Duret. This methodology is constructed around three procedures. The first procedure executes the verification of the functional requirements by automatically extracting the functional demensions chains in the mechanical sub-assembly. Then a second procedure performs an optimization of the dispersions on the basis of unknown variables. The third procedure uses the optimization values of the dispersions to compute the optimized average values and tolerances of the functional dimensions in the chains