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DEALING WITH EXTREME REQUIREMENT VALUES: WHAT METHODS TO DESIGN SCHOOL CHAIRS AND OFFSHORE WIND TURBINES HAVE IN COMMON

Published online by Cambridge University Press:  19 June 2023

Andreas Florian Haselsteiner ,
Klaus-Dieter Thoben  and
Lucienne Blessing
Andreas Florian Haselsteiner*
Affiliation:
University of Bremen, Institute for Integrated Product Development;
Klaus-Dieter Thoben
Affiliation:
University of Bremen, Institute for Integrated Product Development;
Lucienne Blessing
Affiliation:
2Singapore Univeristy of Technology and Design (SUTD), SUTD-MIT International Design Centre
*
Haselsteiner, Andreas, Florian University of Bremen, Germany, [email protected]

Abstract

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Many designs are “driven” by requirements that describe maximum or minimum values of high- variability variables that must be considered. In ergonomics, minima and maxima of anthropometric variables like body height shape the design of a product. Similarly, in structural design, the highest environmental loads that can be expected during the lifetime of a product drive the design. Consequently, a wide range of methods that help designers deal with extreme requirement values has been developed. In this paper, we review these methods and propose a model for the process of dealing with extreme requirement values. The model comprises two broad stages. In the first stage, requirement values are statistically defined and in the second stage, a design is synthesized and evaluated against the requirement values. Throughout the paper, we use two examples: the design of an ergonomic chair and of an offshore wind turbine. We focus on how requirement values are defined for these two products and how they are used throughout the design process. Although these products are vastly different, both are designed by statistically deriving requirement values and then systematically designing against these values.

Keywords

RequirementsDesign processDesign methodsErgonomicsStructural Design
Type
Article
Information
Proceedings of the Design Society , Volume 3: ICED23 , July 2023 , pp. 1147 - 1156
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.
Copyright
The Author(s), 2023. Published by Cambridge University Press

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