Mechanisms and coherences of robust design methodology: a robust design process proposal

Göhler, Simon Moritz; Ebro, Martin; Howard, Thomas J.

doi:10.1080/14783363.2016.1180952

Cited by 9 publications

(4 citation statements)

References 34 publications

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“…However, most robust and tolerance design approaches are only applicable after complete development of the concept. Moreover, they are usually described without regard to the design process steps and the respective available information, so that the implementation is difficult for the design engineer, especially in the early development stages (Eifler, Ebro & Howard 2013;Göhler, Ebro & Howard 2016). For example, it is unclear when and how the abstract robustness principles can be implemented for the first time in product development process.…”

Section: Discussion Of the State Of The Art And Problem Statementmentioning

confidence: 99%

Integrated approach enabling robust and tolerance design in product concept development

et al. 2021

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Along with the ever-increasing customer demands, early consideration of variation in terms of robust design is important to avoid expensive iterations in the product development. However, existing methods are detached from the development process and can therefore only be applied at a late stage or only with comprehensive expert knowledge. Especially in the concept stage, where the geometry of a product is not yet defined and the optimisation potential is high, effective solution proposals for systematic consideration of variation are lacking. Therefore, this paper describes a new integrated approach facilitating robust and tolerance design in the concept stage. The novelty of the approach using ontologies and graph-based visualisation is the close linkage of product development and tolerance knowledge, which allows automation and helps to avoid time- and cost-intensive iteration loops. As a result, a robust and tolerance-compliant concept design, an initial qualitative tolerance specification and instructions for the further tolerancing process are already available at the end of the concept stage. The applicability and the benefits of the approach are illustrated by representative case studies and a user study allowing a critical comparison between the conventional, mostly subjective procedure and the presented approach.

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Section: Discussion Of the State Of The Art And Problem Statementmentioning

confidence: 99%

Integrated approach enabling robust and tolerance design in product concept development

et al. 2021

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“…Furthermore, the robustness of a structure can be defined as its tolerance to damage from extreme or accidental loads [32], or the ability to avoid disproportionate collapse caused by any initial damages [33]. • In a robust design, the aim is to develop a product with an optimized functional performance that is insensitive to variations in the noise factors, as classically promoted by Taguchi, and to variations in the product design parameters [34].…”

Section: Robustnessmentioning

confidence: 99%

“…(1) Fluctuations, disturbances, variations in the noise factors, or variations in the design parameters [27,28,34]. (2) Accidental actions caused by unexpected events, accidental loads, or beyond-designbasis earthquake events [29,30,32].…”

Section: Robustnessmentioning

confidence: 99%

Evaluating the Seismic Diversity and Robustness of Nuclear Power Plants

Katayama

Ohtori

Sakai

et al. 2021

Journal of Nuclear Science and Technology

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The occurrence of common cause failures poses a critical threat to the seismic safety of nuclear power plants. The installation of diverse components such as isolation systems is believed to be a promising strategy to avoid such failures, especially in the context of disasters such as the Fukushima accident. Although the effectiveness of implementing diverse components in enhancing the seismic safety has been qualitatively evaluated, a quantitative examination considering the system reliability has not been performed yet. Therefore, in this study, a method to quantitatively evaluate the effectiveness of diverse components in preventing failures was developed. The definitions of the seismic diversity and robustness in different domains were examined. Subsequently, the proposed approach was used to evaluate the effectiveness of the seismic diversity strategy on enhancing the system reliability at 11 sites in Japan. Moreover, the seismic robustness of the system was assessed. The results indicated that the optimal constitution of diverse components depends on the seismic environment at each site, and the seismic diversity is a more effective strategy compared to that of multiplicity to ensure the seismic safety of nuclear power plants.

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“…Robust Design is a very tool/method centric discipline with vaguely a defined robust design process [7], and as a consequence only experts know what to apply and when. Furthermore, the term Robustness is frequently used almost interchangeably with Sensitivity in a wide range of related, but not clearly delimited research areas, such as sensitivity analysis, computational model building, optimization etc.…”

Section: Introductionmentioning

confidence: 99%

Robustness Metrics: Consolidating the Multiple Approaches to Quantify Robustness

Göhler

Eifler

Howard

2016

Journal of Mechanical Design

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Mechanisms and coherences of robust design methodology: a robust design process proposal

Cited by 9 publications

References 34 publications

Integrated approach enabling robust and tolerance design in product concept development

Integrated approach enabling robust and tolerance design in product concept development

Evaluating the Seismic Diversity and Robustness of Nuclear Power Plants

Robustness Metrics: Consolidating the Multiple Approaches to Quantify Robustness

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