DS 48: Proceedings DESIGN 2008, the 10th International Design Conference, Dubrovnik, Croatia

Year: 2008
Editor: Marjanovic D., Storga M., Pavkovic N., Bojcetic N.
Author: Stuppy, J.; Meerkamm, H.
Section: Geometrical modelling and tolerancing
Page(s): 697 - 704


The functionality of technical systems in motion is influenced by small geometrical variations of their components. To quantify this influence, tolerance analysis is carried out. In this paper, tolerance and motion analysis procedures are merged together for an integrated modelling strategy. All explanations are exemplified by means of the crank mechanism of a combustion engine. Different kinds of deviation are considered – a) dimensional deviation of the mechanism links crankshaft and conrod, b) position deviation of the cylinder axis and c) clearance at the conrod big end bearing. With the results gained, understanding of the correlation between defined tolerances and the functionality of the mechanism can be improved.

Keywords: tolerance analysis, motion analysis, geometrical deviation, simulation technique


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