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MANAGING FUNCTIONAL TRADE-OFFS IN THE MECHANICAL DESIGN OF INTEGRATED PRODUCTS USING MULTIOBJECTIVE MONOTONICITY ANALYSIS

Published online by Cambridge University Press:  19 June 2023

Nokkvi S. Sigurdarson ,
Panos Y. Papalambros  and
Tobias Eifler
Nokkvi S. Sigurdarson
Affiliation:
Device Delivery Systems, Novo Nordisk A/S;
Panos Y. Papalambros
Affiliation:
University of Michigan;
Tobias Eifler*
Affiliation:
Technical University of Denmark
*
Eifler, Tobias, Technical University of Denmark, Denmark, tobeif@dtu.dk

Abstract

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With the continuously increasing integration of (mechanical) products, the identification and management of trade-offs becomes a major task in product synthesis, with substantial effect on optimality and robustness of the final solution. At the same time, a rigorous and comprehensive study of trade-offs through mathematical design optimisation is often impractical in design, as efforts spent on modeling and optimizing are likely wasted if a chosen design is changed. Extending research on configuration redesign based on a multiobjective monotonicty analysis (MOMA), this paper presents three levels of evaluation for early design or redesign: (I) informal evaluation, (II) opportunistic evaluation, and (III) exhaustive evaluation. The chosen level depends on what knowledge the designer wants to gain, and the higher the level, the larger the analysis effort, the lesser the re-use of the information gained from the initial MOMA analysis respectively. The approach is illustrated using a novel drug delivery device, the Self-Orienting Millimeter-Scale Applicator (SOMA), for the oral delivery of protein compounds such as insulin.

Keywords

Embodiment designOptimisationEvaluationConfiguration design
Type
Article
Information
Proceedings of the Design Society , Volume 3: ICED23 , July 2023 , pp. 2535 - 2544
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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