微型孔洞聲學超穎材料與吸音口罩應用;Microperforated acoustic metamaterials as the sound-absorbing mask

NCUIR > Engineering College > Energy of Mechatronics > Electronic Thesis & Dissertation > Item 987654321/77162

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/77162

Title:	微型孔洞聲學超穎材料與吸音口罩應用;Microperforated acoustic metamaterials as the sound-absorbing mask
Authors:	蘇珈正;Su, Jia-Zheng
Contributors:	能源工程研究所
Keywords:	妥瑞症聲語型;微型孔洞;聲學超穎材料;吸音口罩;Tourette syndrome;microperforated;acoustic metamaterial;sound-absorbing mask
Date:	2018-07-16
Issue Date:	2018-08-31 14:15:52 (UTC+8)
Publisher:	國立中央大學
Abstract:	妥瑞症( Tourette syndrome )是一種發生於兒童之腦部基底核的慢性神經生理疾病，症狀反反覆覆、好好壞壞，是源於大腦基底核多巴胺的高反應性，是一種慢性且反覆不斷出現不自主的動作及聲語上的「tic」，一個接一個，由簡單動作開始而逐漸複雜。Tic 最常見: 快速而短暫的眨眼睛、嘴巴、扮鬼臉、聳肩膀以及搖頭晃腦等動作。本論文中主要強調口罩的吸音三要素：微型孔洞、厚度及吸音棉，利用不同的排列組合，量測吸音口罩能否能達到預設的吸音效果，並發現可達預期之吸音效果。本論文第一部分為多孔聲學超穎材料(acoustic metamaterials)應用於第一版吸音口罩，第二部分為微型孔洞聲學超穎吸音材料(Micro-perforated acoustic metamaterials)應用於第二版吸音口罩。吸音口罩第一、二版皆跟亨龍公司及壢新醫院合作設計製造，第一版口罩跟第二版口罩搭配不同性質，如口罩材質、厚度，有無不織布，矽膠條等，而其中最特別的是不同聲學超穎材料應用於吸音口罩。利用聲學超穎吸音材料得到一個有效的聲音抑制能力。第一、二版吸音口罩的聲音抑制表現都優於無口罩及一般醫療用口罩，而最後的目標是成功完成設計和發展一個低耗費、輕量化，跟聲學超穎材料結構用於妥瑞症患者上。 ;Tourette syndrome is a chronic neurophysiological disease that occurs in the basal nucleus of a child′s brain. It is a chronic, repetitive and involuntary movement and tic "tic," one by one, starting with simple movements and becoming more complex. . Tic is the most common: fast and transient blinking, grimacing, and shrugging. This article mainly emphasizes the three elements of the sound-absorbing mask: microperforated, thickness and sound-absorbing cotton. Using different arrangements and combinations, it can measure whether sound-absorbing masks can achieve the preset sound-absorbing effect and find the expected sound-absorbing effect. The first part of this thesis is that the porous acoustic metamaterials are used in the first edition of sound-absorbing masks, and the second part is the microperforated acoustical super-absorption materials used in the second edition of sound-absorbing masks. Acoustic translucent sound-absorbing materials provide an effective sound suppression capability. The sound-absorbing masks were designed and manufactured in cooperation with Hanlong industrial and chungli new hospital. The final goal is to successfully complete the design and development of a low-cost, lightweight, acoustic hyperspectral material structure for patients with Tourette′s syndrome.
Appears in Collections:	[Energy of Mechatronics] Electronic Thesis & Dissertation

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