多重共振聲學超穎材料與聲語型抽動妥瑞氏症患者吸音口罩應用;Acoustic metamaterials with multiple resonances as sound-absorbing mask of Tourette’s patients

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題名:	多重共振聲學超穎材料與聲語型抽動妥瑞氏症患者吸音口罩應用;Acoustic metamaterials with multiple resonances as sound-absorbing mask of Tourette’s patients
作者:	鐘同元;Zhong, Tong-Yuan
貢獻者:	能源工程研究所
關鍵詞:	妥瑞症聲語型;聲學聲學新穎材料;COMSOL模擬;Tourette syndrome;acoustic metamaterial;COMSOL simulation
日期:	2017-07-27
上傳時間:	2017-10-27 13:48:35 (UTC+8)
出版者:	國立中央大學
摘要:	妥瑞氏症是一個遺傳性神經生理學障礙和會在孩提時代就發病，而妥瑞氏症的特徵在於很多身體的抽動和會有聲音的抽動。0.4%~3.8%之間的孩子會在5歲~8歲可能有妥瑞氏症，抽動行為普遍發生在已經上學年紀的兒童和比較常見的抽動行為像是眨眼、咳嗽、清喉嚨和顏部的扭曲移動。本篇主要著重在第一個部分為3D掃描資料和3D製造過程結合用於客製化口罩跟第二個部分為跟亨龍公司所合作製作的通用量產型口罩。客製化口罩跟量產型口罩都搭配不同性質，像是口罩材質，振動板種類跟厚度，有無不織布等，而其中最特別的是增加聲學聲學新穎材料(acoustic metamaterials)用於量產型口罩，我們利用聲學新穎材料得到一個有效的聲音抑制能力。另外輔以COMSOL模擬振動板，得到不同厚度的振動板跟不同的模態所對應的位移變化情形跟共振特徵頻率。我們的客製化口罩跟量產型口罩的聲音抑制表現都優於無口罩，而最後的目標是成功完成設計和發展一個低耗費、阻尼振動版，跟聲學新穎材料結構用於妥瑞氏症患者上。;Tourette syndrome is an inherited neurophysiologic disorder with onset in childhood, characterized by multiple physical (motor) tics and at least one vocal (phonic) tic. Between 0.4% and 3.8% of children ages 5 to 18 may have Tourette′s; the prevalence of other tic disorders in school-age children is higher, with the more common tics of eye blinking, coughing, throat clearing, sniffing, and facial movements. This paper is mainly focused the first part on a novel multilayer vibrating plate design in conjunction with the 3D scanned data/3D printed fabrication process for the customized mask and second part on a common mass production mask is cooperation with Hanlong Industrial Cooperation. Customized mask and mass production mask are with different nature. Such as mask materials, vibrating plates and thickness , with and without non-woven, etc. One of the most special is adding acoustic metamaterials for mass production mask, we use acoustic metamaterials to get an effective sound suppression capability. In addition，supplemented by COMSOL simulation of vibrating plate, getting the vibrating plate with different thickness and different mode are correspond displacement with resonance characteristic frequency. The sound suppression performance of customized mask is shown to be superior to that of no mask . Therefore, final goal is successfully accomplished to design and develop an alternative low-cost, damped vibrating plate and acoustic metamaterials structure for the patients of Tourette′s syndrome.
顯示於類別:	[能源工程研究所 ] 博碩士論文

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