Simulation metamodeling approach to complex design of garment assembly lines

Bongomin, Ocident; Mwasiagi, Josphat Igadwa; Nganyi, Eric Oyondi; Nibikora, Ildephonse

doi:10.1371/journal.pone.0239410

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…The study proposed an assembly line stabilizing for this intricate clothing assembly line. Arena simulations software was used to perform a discrete event simulation of the trouser assembly (Bongomin et al, 2020). Some studies revised the production line architectures by mixing and integrating two different lines and improved production efficiency, reducing production costs (Zhao et al, 2022).…”

Section: Literature Surveymentioning

confidence: 99%

Bi̇r Teksti̇l Şi̇rketi̇ İçi̇n Üreti̇m Hatti Atama Problemi̇

ABDELSALAM>¹,

MOHAMMOUD>²,

EDER>³

et al. 2023

Mühendislik Bilimleri Ve Tasarım Dergisi

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In this study, the production process of Karaman Textiles, for which production planning is done manually, was observed and analyzed. This study aims to minimize the unused machine capacity and idle time of the existing system by developing a mixed integer programming (MIP) model, developing scenarios, and obtaining the results with GAMS software. In addition, the results of the scenarios are compared and evaluated to reach the optimal result that meets and maximizes the efficiency of the production process. The company's usual production planning is done manually and determined according to annual demand. The study aims to minimize the machine working times and that complete planning of the production in the most optimal way. In this study, the company's production time and machine usage times were optimized, and under normal conditions, 15,000 fabric pants were produced for 8 hours a day, 5 days a week, and 4 weeks a month. The scenario analysis aimed to produce by adding 4,000 pieces of velvet pants in addition to 15,000 fabric pants in the first scenario. The second scenario aims to minimize the production time of 15,000 fabric pants by limiting the working times of the machines owned by the company.

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Section: Literature Surveymentioning

confidence: 99%

Bi̇r Teksti̇l Şi̇rketi̇ İçi̇n Üreti̇m Hatti Atama Problemi̇

ABDELSALAM>¹,

MOHAMMOUD>²,

EDER>³

et al. 2023

Mühendislik Bilimleri Ve Tasarım Dergisi

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“…To properly track containers and CHE in both layouts, we have adopted a simple rulebased strategy similar to [35][36][37] for both CHE assignment and its respective routing, where containers are assigned to the first closest available CHE; and, if no such CHE is available, the containers will be stalled until the required CHE is ready. Once assigned, the routing of CHE will be subsequently initiated.…”

Section: Plos Onementioning

confidence: 99%

Evaluating the long-term operational performance of a large-scale inland terminal: A discrete event simulation-based modeling approach

2022

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Inland terminals, or dry ports, have played an important role in multimodal transportation networks as transportation hubs that provide connections between seaports and hinterland economies. While important, evaluating the operational performance of a dry port is especially challenging since it depends not only on internal factors, such as the variety and number of container handling equipment (CHE) deployed, but also on other external factors, including changes in transportation policies and container demands experienced by a dry port. To properly evaluate the holistic performance of a dry port while considering all the aforementioned factors, a discrete event simulation (DES) framework is herein developed and applied to the Ladkrabang Inland Container Depot (LICD)—one of the largest dry ports in Southeast Asia—under various operational settings. Despite complicated internal operations, the devised DES framework has shown itself useful in the analyses of LICD, due largely to its flexibility that allows users to include sophisticated operational rules into models. According to our computational results, the current LICD operation is markedly ineffective as the usage rates of all CHE types are relatively low and varied across gate operators—especially the yard truck whose values range between 2.46% and 11.15% on yearly average. We also find that, by redesigning the LICD and its internal operations, the LICD’s performance could be substantially enhanced—even with fewer numbers of CHE. Regarding the four CHE types, the reach stacker seems to limit LICD’s capability, as its utilization tends to first reach the maximum allowable rate of 75%, while the rubber tyred gantry crane could help boost the usage rate of yard trucks, which, in turn, results in reduced container dwelling times. Nonetheless, the modified LICD could accommodate up to 140% of the current container demand before it experiences operational difficulties induced by the saturation of container flow from rail transportation.

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Improving the Apparel Production Process by Using Simulation Modelling with a Waves Algorithm

Ünal

Kaya²,

Erdoğan³

et al. 2021

FIBRES & TEXTILES in Eastern Europe

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In this study, a simulation study was carried out in order to increase the production efficiency of a company that produces hoodies. The simulation technique has been included in many studies for line balancing in the apparel industry. However, in this study, unlike others, an algorithm that can be easily applied is proposed for the software practitioner to use in the alternative model development process in order to increase the efficiency of an existing production line. Based on real production line data, a waves algorithm was applied in the simulation model, whose verification and validity processes were completed. In the results obtained with the help of the waves algorithm (acting according to two different assignment scenarios), it was determined that the average production values per person had increased.

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Simulation metamodeling approach to complex design of garment assembly lines

Cited by 3 publications

References 52 publications

Bi̇r Teksti̇l Şi̇rketi̇ İçi̇n Üreti̇m Hatti Atama Problemi̇

Bi̇r Teksti̇l Şi̇rketi̇ İçi̇n Üreti̇m Hatti Atama Problemi̇

Evaluating the long-term operational performance of a large-scale inland terminal: A discrete event simulation-based modeling approach

Improving the Apparel Production Process by Using Simulation Modelling with a Waves Algorithm

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