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ICED 11
Papers

Statistical tolerance analysis of mechanisms with interactions between deviations – a methodology with 10 easy steps

Statistical tolerance analysis of mechanisms with interactions between deviations – a methodology with 10 easy steps

Year: 2013

Editor: Udo Lindemann, Srinivasan V, Yong Se Kim, Sang Won Lee, John Clarkson, Gaetano Cascini

Author: Walter, Michael; Wartzack, Sandro

Series: ICED

Institution: FAU Erlangen-Nuremberg, Germany

Pages: 191-200

ISBN: 978-1-904670-48-3

ISSN: 2220-4334

Abstract

The time-dependent motion behavior of a mechanism is essentially affected by different kinds of deviations. Consequently, the product developer has to analyze the mechanism and its kinematic behavior as early as possible to ensure the product’s functional capabilities. However, possible interactions between the deviations and their effects on the system’s motion, and thus the functionality are not considered yet.

This paper presents a methodology, consisting of 10 easy steps, which enables the product developer to perform a statistical tolerance analysis of a system in motion, which underlies different kinds of deviations as well as several interactions among them. Therefore, the identification as well as the determination (statistically) of the interactions is required, which can be done using numerical simulations like multi-body-dynamics or manufacturing process simulations. An appropriate mathematical representation of the interactions is done using meta-models (like Artificial Neural Networks). These can be easily integrated into the tolerance analysis’ functional relation. A case study of a non-ideal cross-arm window regulator illustrates the methodology’s practical use.

Keywords: Statistical tolerance analysis, artificial neural networks, robust design, simulation, design methods

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ds conferenceICED13: 19th International Conference on Engineering Design

ICED13: 19th International Conference on Engineering DesignThe 19th International Conference on Engineering Deisgn (ICED13) will for the first time take place in Asia: ICED13 on 19-22 August 2013 at Sungkyunkwan University, Seoul, Korea The ICED13 motto is: "Design for Harmonies" - Harmony of Products and Services - Harmony of Old and New - Harmony of Culture and Technology - Harmony of East and West The conference chair is Prof. Yong Se Kim of the Creative Design Institute at Sungkyunkwan University. Important dates are: Call for Papers:...

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SIG Workshop - March 2013