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Approach for a consistent description of uncertainty in process chains of load carrying mechanical systems

: Eifler, Tobias; Enß, Georg Christoph; Haydn, Michael; Mosch, Lucia; Platz, Roland; Hanselka, Holger


Hanselka, H.; Groche, P. ; Sonderforschungsbereich Beherrschung von Unsicherheit in Lasttragenden Systemen des Maschinenbaus -SFB 805-, Darmstadt; Deutsche Forschungsgemeinschaft -DFG-, Bonn:
Uncertainty in mechanical engineering : Selected, peer reviewed papers from the 1st International Conference on Uncertainty in Mechanical Engineering (ICUME 2011). November 14 - 15, 2011, Darmstadt, Germany
Durnten-Zurich: TTP, 2012 (Applied mechanics and materials 104)
ISBN: 978-3-03-785261-3
ISSN: 1660-9336
International Conference on Uncertainty in Mechanical Engineering (ICUME) <1, 2011, Darmstadt>
Conference Paper
Fraunhofer LBF ()
uncertainty; process chains of load; loar carrying system

Uncertainty in load carrying systems e.g. may result from geometric and material deviations in production and assembly of its parts. In usage, this uncertainty may lead to not completely known loads and strength which may lead to severe failure of parts or the entire system. Therefore, an analysis of uncertainty is recommended. In this paper, uncertainty is assumed to occur in processes and an approach is presented to describe uncertainty consistently within processes and process chains. This description is then applied to an example which considers uncertainty in the production and assembly processes of a simple tripod system and its effect on the resulting load distribution in its legs. The consistent description allows the detection of uncertainties and, furthermore, to display uncertainty propagation in process chains for load carrying systems.