Comparison of Different Sensitivity Analysis Methods in the Context of Dimensional Management

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Heling B, Oberleiter T, Schleich B, Willner K, Wartzack S
Editor(s): ASME
Publication year: 2017
Conference Proceedings Title: ASME 2017 International Mechanical Engineering Congress and Exposition, Volume 2: Advanced Manufacturing
ISBN: 978-0-7918-5835-6
Language: English


Abstract


Although mass production parts look the same, every manufactured part is unique, at least on a closer inspection. The reason for this is that every manufactured part is inevitable subjected to different scattering influencing factors and variation in the manufacturing process, such as varying temperatures or tool wear. All these factors inevitably lead to parts, which deviate from their ideal shape. Products, which are built from these deviation-afflicted parts consequently show deviations from their ideal properties. To ensure that every single product nevertheless meets its technical requirements, it is necessary to specify the permitted deviations. Furthermore it is necessary to estimate the consequences of the permitted deviations, which is done via tolerance analysis. During this process the imperfect parts are assembled virtually and the effects of the geometric deviations can be calculated during a variation simulation.



Since the tolerance analysis is to enable engineers to identify weak points in an early design stage it is important to know which contribution every single tolerance has on a certain quality-relevant characteristic, to restrict or increase the correct tolerances. In this paper two different approaches are shown and compared to represent the statistical behavior and the strongly connected sensitivity analyses. In particular a newly developed approach, which is based on fuzzy arithmetic, is compared to the established EFAST-method. The exemplary application of both methods and the comparison of the results are illustrated on a case study.


FAU Authors / FAU Editors

Heling, Björn
Lehrstuhl für Konstruktionstechnik
Oberleiter, Thomas
Professur für Strukturmechanik
Schleich, Benjamin Dr.-Ing.
Lehrstuhl für Konstruktionstechnik
Wartzack, Sandro Prof. Dr.-Ing.
Lehrstuhl für Konstruktionstechnik
Willner, Kai Prof. Dr.-Ing.
Professur für Strukturmechanik


How to cite

APA:
Heling, B., Oberleiter, T., Schleich, B., Willner, K., & Wartzack, S. (2017). Comparison of Different Sensitivity Analysis Methods in the Context of Dimensional Management. In ASME (Eds.), ASME 2017 International Mechanical Engineering Congress and Exposition, Volume 2: Advanced Manufacturing. Tampa, Florida, USA.

MLA:
Heling, Björn, et al. "Comparison of Different Sensitivity Analysis Methods in the Context of Dimensional Management." Proceedings of the ASME 2017 International Mechanical Engineering Congress and Exposition, Tampa, Florida, USA Ed. ASME, 2017.

BibTeX: 

Last updated on 2019-10-01 at 14:17