Improve the product structural robustness based on network motifs in product development

The stability and safety of products will be reduced if product structures are vulnerable to failures of key components. Existing methods for improving product structural robustness mainly focus on some key components, but they cannot provide designers with universal and explicit structure optimizat...

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Bibliographic Details
Published in:Scientific reports 2022-06, Vol.12 (1), p.10916-10916, Article 10916
Main Authors: Ni, Yongbo, Ou, Yingxia, Li, Yupeng, Zhang, Na
Format: Article
Language:English
Subjects:
639/166
639/166/988
Case studies
Design
Designers
Engineering
Enumeration
Failure
Humanities and Social Sciences
Literature reviews
multidisciplinary
Neurosciences
Optimization
Product development
Science
Science (multidisciplinary)
Smartphones
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Summary:The stability and safety of products will be reduced if product structures are vulnerable to failures of key components. Existing methods for improving product structural robustness mainly focus on some key components, but they cannot provide designers with universal and explicit structure optimization strategies. From the viewpoint of product structural networks, the motif is the fundamental meta-structure, and it is efficient to analyse product structural properties. Motivated by this, strategies to improve product structural robustness are explored by considering relationships between typical motifs and product structural robustness. First, product structural networks are constructed by collecting the structural information of a series of product generations. Second, typical (anti-) motifs are identified based on an enumeration algorithm, and the robustness is measured considering the largest connected cluster. Then, relationships between the frequency of different motifs and product structural robustness are obtained through principal component regression. The results of a case study on the smartphone show that anti-motifs are negative for product structural robustness. Motifs with loop structures are positive for product structural robustness. Accordingly, relevant strategies to improve product structural robustness in product development are developed.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-15056-2