Product behavior complexity metric for early prioritization of tolerance analysis tasks

Kristian Bjarklev*, Tobias Eifler, Niels Henrik Mortensen, Steven Linnebjerg, Martin Ebro

*Corresponding author for this work

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In order to reduce the time spent on tolerance analysis, it is necessary to correctly identify and prioritize the key characteristics of the product. For multiple-state mechanisms, a systematic procedure for doing this is lacking. We present a new complexity metric for multiple-state mechanisms based on the product behavior, describing the impact of geometrical variation. The sequence of the structural state transitions is linked to the product composition, enabling a clear prioritization of variation-critical states and interfaces. The approach is applied on an industrial case and verified based on a comparison with the company-specified priority tolerance calculations.
Original languageEnglish
Article numbere1
JournalDesign Science
Number of pages25
Publication statusPublished - 2020

Bibliographical note

Copyright: The Author(s) 2020. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.
org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.


  • Tolerance analysis management
  • Robust design
  • Product behavior complexity
  • Key characteristics identification


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