Use of Margin to Absorb Variation in Design Specifications: An Analysis Using the Margin Value Method. (May 2022)

• Record Type: Journal Article
• Authors: Brahma, A.; Wynn, D. C.; Isaksson, O.
• Is Part Of: Proceedings of the Design Society. Volume 2(2022)
• Page Start: 323
• Page End: 332
• Publication Date: 2022-05
• Subjects: design margin -- robust design -- engineering change -- design optimisation; Industrial design -- Congresses; Engineering design -- Congresses; 620.0042
• DOI: 10.1017/pds.2022.34
• Languages: English
• ISSNs: 2633-7762

Abstract

Abstract: Predicting the impact of changes in a design can be challenging, especially for complex designs. Margins are often built into the designs which can absorb the knock-on effect of such changes, erroneously allocating which can however, lead to propagation. A method for localising and sizing margins in an incremental design context is the Margin Value Method. This paper adapts MVM in the context of uncertainty in input specifications. It discusses possible ways to allocate them in a design such that undesirable effects of margins are minimised while preventing change propagation.