Development of the Modularity Measure for Assembly Process Structures

Modrák, Vladimír; Šoltysová, Zuzana

doi:10.1155/2021/4900748

Cited by 8 publications

(5 citation statements)

References 37 publications

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“…In other words, relative modularity can be defined as a measure quantifying the tendency of the network to be organized in network modules [16]. Such metrics (see, e.g., [17][18][19][20]) are used to compare this property among multiple designs. Several independent authors pointed out in their works [21][22][23][24][25] that over-modularization is as undesirable as under-modularization.…”

Section: Related Workmentioning

confidence: 99%

Influence of Manufacturing Process Modularity on Lead Time Performances and Complexity

Modrák

Šoltysová

2023

Applied Sciences

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In principle, modular or integral character of manufacturing lines depends on the topological designs of products and determined operation tasks. On the other hand, in specific situations there is an articulated need for modular design in smart manufacturing systems since modular layouts are a crucial step towards agile production via smart manufacturing. The aim of this paper is to explore how the modular layout relates to manufacturing lead time (MLT) and to operational complexity of smart manufacturing systems. For this purpose, topologically different models of alternative process layouts were simulated and tested, while MLT values were obtained using Tecnomatix Plant Simulation. The obtained positive findings of this research could be useful not only in selection of the most suitable process design from the alternative ones, but especially in deepening the knowledge and bettering understanding of the concept of optimal network modularity.

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Section: Related Workmentioning

confidence: 99%

Influence of Manufacturing Process Modularity on Lead Time Performances and Complexity

Modrák

Šoltysová

2023

Applied Sciences

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“…This granularity measure is defined based on the Shannon entropy to quantify partitions generated under the same network. Other related works 40 , 41 are focusing on process modularity measures and provide additional context for the relationships between process modularity and complexity, as well as insight into the nexus of process modularity and product modularity. All of the mentioned approaches are more or less inteded to quantify the relative modularity of manufacturing processes and systems.…”

Section: Related Workmentioning

confidence: 99%

“… Each process module of assebly line structure encompasses one or more assembly operations, and such a module is represented only by a single internal node. Relative modularity measures of ALSs As mentioned in previous section, only a few metrics to quantify relative modularity of ALSs are available in literature 40 , 41 , 52 , 53 . It is prioritized to select for given purpose two of them, namely cross-module independence (CMI) indicator and relative network modularity (RNM) measure, since the both are directly applicable for ALSs.…”

Section: Theoretical Framework For Investigationmentioning

confidence: 99%

Exploration of the optimal modularity in assembly line design

Modrák

Šoltysová

2022

Sci Rep

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It is widely accepted that a proper structural modularity degree of assembly processes in terms of mass customization has a positive effect on their efficiency because it, among other things, increases manufacturing flexibility and productivity. On the other hand, most practical approaches to identify such a degree is rather based on intuition or analytical reasoning than on scientific foundations. However, the first way can be used for simple assembly tasks, but in more complex assembly processes, this method lags behind the second. The purpose was to create a methodology for selection of optimal modular assembly model from among a predefined set of alternatives. The methodology is based on exploration of the relations between modularity measures and complexity issues as well as the relationship between structural modularity and symmetry. Especially, the linkage between modularity and complexity properties has been explored in order to show how modularization can affect distribution of the total structural complexity across the entire assembly line. To solve this selection problem, three different methods are preliminary suggested and compared via a series of numerical tests. The two of them present the novel contribution of this work, while the third method developed earlier for the purpose of finding and evaluating community structure in networks was adapted for a given application domain. Based on obtained results, one of these method is prioritized over another, since it offers more promising results and precision too.

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“…In the product domain, which has a higher number of contributions on modularity than the process domain, Galan et al [34] simultaneously considered these concepts in order to propose a methodology for grouping products into families. In the process domain, researchers have considered either process similarity [35][36][37] or modularity (an extensive analysis of modularity measures is provided in [38]) in connection to process reusability. Recently, Modrak and Soltysova [38], introduced a relative modularity indicator which, compared to existing modularity indexes, had the advantage of not requiring time-consuming calculation; this was specifically applied to assembly process structures.…”

Section: Background and Literature Reviewmentioning

confidence: 99%

“…In the process domain, researchers have considered either process similarity [35][36][37] or modularity (an extensive analysis of modularity measures is provided in [38]) in connection to process reusability. Recently, Modrak and Soltysova [38], introduced a relative modularity indicator which, compared to existing modularity indexes, had the advantage of not requiring time-consuming calculation; this was specifically applied to assembly process structures. This concept of relative modularity, based on the foundation that, unlike product modularity, process modularity is not an inherent part of process design but depends on production strategies, has also been considered for the modularity assessment proposed in the next section.…”

Section: Background and Literature Reviewmentioning

confidence: 99%

Fostering the Reuse of Manufacturing Resources for Resilient and Sustainable Supply Chains

et al. 2022

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In the current context characterized by turbulent market conditions and the increasing relevance of sustainability requirements, reconfigurable manufacturing systems (RMSs) offer great potentialities for supply chains and networks. While plenty of contributions have addressed RMSs from a technological and system-specific perspective since the mid-1990s, the research interest for the strategic potentialities of RMSs at the supply chain level is recent and mainly related to building supply chains’ resilience and sustainability. Despite the interest, methods to support supply chains to strategically exploit RMSs are still missing, while being highly needed. In this paper, a method—consisting of an index to assess machines reusability and a mixed integer programming (MIP) algorithm—is provided to support the identification of reusable and reconfigurable machine candidates at the early stage of the strategic network design. The overall method allows machines to be compared based on their reusability and geographical locations. The application of the method, as well as an example referring to the production of emergency devices during the COVID-19 pandemic are reported. The theoretical and practical implications of the study are also discussed, and, among others, strategic parameters related to machines have been identified and elaborated as enablers of supply chain reconfigurability; the proposed method supports practitioners in improving supply chain resilience and sustainability. The method also encourages practitioners towards the development and adoption of reconfigurable machines. Finally, this study also has social impacts for local communities and stimulates customer-centric collaboration among companies belonging to similar industries and sectors.

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Development of the Modularity Measure for Assembly Process Structures

Cited by 8 publications

References 37 publications

Influence of Manufacturing Process Modularity on Lead Time Performances and Complexity

Influence of Manufacturing Process Modularity on Lead Time Performances and Complexity

Exploration of the optimal modularity in assembly line design

Fostering the Reuse of Manufacturing Resources for Resilient and Sustainable Supply Chains

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