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Characterization of woven fabrics for development of micro perforated panel absorbers
Gunawana,b, Prasetyo I.a, Yuliarto B.a, Anwar K.a, Andhika D.R.a
a Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Indonesia
b Textile Engineering, Politeknik STTT Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Proceedings of the International Congress on Acoustics. All rights reserved.Woven Fabrics are potentially to be developed as a sound absorber system because of the presence of micro perforation on their surface. By introducing air cavity backing the woven fabrics up, such system can undergo Helmholtz resonator mechanism as found in micro-perforated panel absorber. The micro perforations in a woven fabric are formed by yarn in x (weft) and y (warp) direction. The perforations can create a viscos-inertial effect when interact with sound fields that is useful as a basis for sound absorption mechanism. In this study, we focused on investigating the relationship of woven fabric material and manufacturing technique properties to associated sound absorption characteristics. For this, natural, semi-synthetic and synthetic fibers-based yarn are used to produce woven fabrics. For further investigation, the geometrical and physical properties of the yarns and fabrics are characterized. The geometrical properties are characterized using a digital microscope while the physical properties are measured using a fabric air permeability, fineness yarn, and other textiles testing devices. Meanwhile, the sound absorption coefficients are evaluated by an impedance tube using transfer function method. From this study, it can be concluded that the sound absorption coefficients of woven fabric are affected by material and manufacturing technique properties. It is expected that the results can be beneficial for developing design procedure of development woven fabric based on micro perforated panel absorber system.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Micro perforation,Natural,Semi-synthetic,Sound absorption,Synthetic yarns,Woven fabric[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This work was funded by ITB research grant. The first author is also grateful to Politeknik STTT Bandung for providing the machine to fabricate the measurement samples.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.18154/RWTH-CONV-238983[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]