METHOD FOR DETERMINING TOLERANCE INTERVALS FOR SIZING A WORKPIECE

摘要

The invention relates to a method for determining tolerance intervals (ITi) for a set of dimensions of a part, said tolerance intervals being defined so that a part whose dimensions are included in said intervals respects a set of constraints with a determined probability of failure, the method being characterized in that it comprises the following steps: generating (100) a separation function for each constraint to be respected, each function being able to indicate whether a given dimensioning of a part satisfied or not with the corresponding constraint, and build (200) iteratively a set of intervals of tolerance of bigger and bigger by testing, with each iteration, with the aid of the functions of separation, if the dimensions included in said intervals respect constraints with a probability of failure lower than the probability of failure.