Tolerance analysis with the 1D angular dimension chain: Application

Tolerancing is an important step in the process of designing a mechanism. There are two tolerancing approaches: The tolerance analysis and the tolerances synthesis. The first consists in checking the functional condition of the mechanism from the specific tolerances of the individual parts, so that the tolerance synthesis is used to determine and optimize the specific tolerances of the individual parts from the functional tolerance of the assembly. The objective of this communication is to present the analysis of the angular tolerances of an assembly made up of four parts, the functional dimensions are angular dimensions, as well as the condition dimension, and for this we base ourselves on the angular dimensions chain. This analysis was carried out according to two tolerancing approaches: the worst-case approach and the statistical approach in order to make a comparison between the two approaches.