Cuadernos de Ingeniería Matemática Vol. 01 Núm. 04 (2024)

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https://hdl.handle.net/10784/34769

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Examinando Cuadernos de Ingeniería Matemática Vol. 01 Núm. 04 (2024) por Autor "Martinod, T."

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    Manufacturing – Packaging Integration in the High-Volume Area at Prebel Using DES
    (2024) Valencia, M.; Cano, S. M.; Martinod, T.; Universidad EAFIT
    Prebel, as a cosmetics manufacturing company, faces delays in its packaging process due to the unavailability of fixed tanks, which affects the fulfillment of production orders. This work presents a discrete event simulation (DES) model developed in SIMUL8 to analyze the packaging area's operation and propose solutions to optimize the process. The study is based on real data and focuses on identifying the main causes of stoppages and their impact on production. The results show that reorganizing staff breaks could increase efficiency by 10%, suggesting that optimizing existing resources is more effective than increasing tank or personnel capacity.
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    Sound-Based Imaging Regularization Approaches in Near-field Acoustic Holography
    (2024) Martinod, T.; Universidad EAFIT
    Regularization of the inverse problem is a complex issue when using Near-field Acoustic Holography (NAH) techniques to identify vibrating sources. This article aims to compare and implement various regularization methods in the context of NAH. Specifically, it compares commonly used Tikhonov regularization, sparsity-based regularization, and neural networks (NN) regularization for a planar NAH array with measurements obtained from an experimental setup. Additionally, it theoretically introduces Green’s function-based regularization. The first three types of regularization methods yield images consistent with the results, and statistical indicators are used to determine which method performs best at different frequencies.