Acoustic Performance Study Of 3d Printed Micro-Perforated Panel

In this study, the optimum configurations for producing micro-perforated panel with targeted hole roundness is discussed through measurement analysis and construction of artificial neural network. The development of micro-perforated panel using additive manufacturing as an alternative method have be...

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Main Author: Kamarulzaman, Muhammad Amir
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2021
Subjects:
Online Access:http://eprints.usm.my/55891/1/Acoustic%20Performance%20Study%20Of%203d%20Printed%20Micro-Perforated%20Panel.pdf
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author Kamarulzaman, Muhammad Amir
author_facet Kamarulzaman, Muhammad Amir
author_sort Kamarulzaman, Muhammad Amir
collection USM
description In this study, the optimum configurations for producing micro-perforated panel with targeted hole roundness is discussed through measurement analysis and construction of artificial neural network. The development of micro-perforated panel using additive manufacturing as an alternative method have been proposed. However, recent cases have found that the method can cause imperfection holes which affect its actual performance. In a further attempt to solve the problem, several perforation hole samples were designed using SolidWorks software and fabricated by using PolyJet machine. The sample parameters (hole diameters and sample thickness) were measured and analysed the deviations produced. The analysis showed that higher sample thickness and lower hole diameters produced more consistent and lower deviations throughout the fabricated model. The perforation holes images were captured using high resolution microscope (Alicona Infinite Focus). The capture images were processed in graph-cut image segmentation algorithm. The circularity of each hole is measured using the processed images and evaluated based on the probability outcomes of specified circularities. The evaluation showed that lower thickness and lower hole diameter sample has a higher tendency to produce better hole circularity. The measured parameters and designed parameters were constructed and trained in two-layer feed forward network model. The model was verified by conducting a reliability test. The trained network model achieved satisfactory prediction results as the mean accuracy for both hole diameter and sample thickness predictions were 1.5588% and 0.3328%, respectively. Based on the experimental results and analytical modelling, it was found that the artificial neural network model can predict the optimum configurations for producing the MPP with the best hole roundness.
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spelling usm.eprints-558912022-12-04T05:36:27Z http://eprints.usm.my/55891/ Acoustic Performance Study Of 3d Printed Micro-Perforated Panel Kamarulzaman, Muhammad Amir T Technology TJ1-1570 Mechanical engineering and machinery In this study, the optimum configurations for producing micro-perforated panel with targeted hole roundness is discussed through measurement analysis and construction of artificial neural network. The development of micro-perforated panel using additive manufacturing as an alternative method have been proposed. However, recent cases have found that the method can cause imperfection holes which affect its actual performance. In a further attempt to solve the problem, several perforation hole samples were designed using SolidWorks software and fabricated by using PolyJet machine. The sample parameters (hole diameters and sample thickness) were measured and analysed the deviations produced. The analysis showed that higher sample thickness and lower hole diameters produced more consistent and lower deviations throughout the fabricated model. The perforation holes images were captured using high resolution microscope (Alicona Infinite Focus). The capture images were processed in graph-cut image segmentation algorithm. The circularity of each hole is measured using the processed images and evaluated based on the probability outcomes of specified circularities. The evaluation showed that lower thickness and lower hole diameter sample has a higher tendency to produce better hole circularity. The measured parameters and designed parameters were constructed and trained in two-layer feed forward network model. The model was verified by conducting a reliability test. The trained network model achieved satisfactory prediction results as the mean accuracy for both hole diameter and sample thickness predictions were 1.5588% and 0.3328%, respectively. Based on the experimental results and analytical modelling, it was found that the artificial neural network model can predict the optimum configurations for producing the MPP with the best hole roundness. Universiti Sains Malaysia 2021-07-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/55891/1/Acoustic%20Performance%20Study%20Of%203d%20Printed%20Micro-Perforated%20Panel.pdf Kamarulzaman, Muhammad Amir (2021) Acoustic Performance Study Of 3d Printed Micro-Perforated Panel. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanik. (Submitted)
spellingShingle T Technology
TJ1-1570 Mechanical engineering and machinery
Kamarulzaman, Muhammad Amir
Acoustic Performance Study Of 3d Printed Micro-Perforated Panel
title Acoustic Performance Study Of 3d Printed Micro-Perforated Panel
title_full Acoustic Performance Study Of 3d Printed Micro-Perforated Panel
title_fullStr Acoustic Performance Study Of 3d Printed Micro-Perforated Panel
title_full_unstemmed Acoustic Performance Study Of 3d Printed Micro-Perforated Panel
title_short Acoustic Performance Study Of 3d Printed Micro-Perforated Panel
title_sort acoustic performance study of 3d printed micro perforated panel
topic T Technology
TJ1-1570 Mechanical engineering and machinery
url http://eprints.usm.my/55891/1/Acoustic%20Performance%20Study%20Of%203d%20Printed%20Micro-Perforated%20Panel.pdf
work_keys_str_mv AT kamarulzamanmuhammadamir acousticperformancestudyof3dprintedmicroperforatedpanel