立體拼圖式組合音箱共振雜音消除之設計

NCUIR > Engineering College > Executive Master of Mechanical Engineering > Electronic Thesis & Dissertation > Item 987654321/72346

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/72346

Title:	立體拼圖式組合音箱共振雜音消除之設計
Authors:	莊才駿;Chuang,Tsai-Chun
Contributors:	機械工程學系在職專班
Keywords:	隔振;雜音消除
Date:	2016-06-06
Issue Date:	2016-10-13 14:48:56 (UTC+8)
Publisher:	國立中央大學
Abstract:	拼圖式立體音箱因著重在可重複拆裝、外型設計感，所以在結構上無法做到如一般傳統音箱的堅固、穩定，但不能因此失去音箱應有的基本需求，就是音質要達到一定的水平。本文研究探討拼圖式立體音箱喇叭單體音聲壓激振的影響，而產生結構共振異音問題，並尋找解決方案，由於拼圖式立體音箱之結合組裝是透過卡榫互扣進行組合並無使用螺絲，所以無法完全緊密結合，因此當喇叭單體在撥放各種聲效時，在低音的變化上往往使前後板因聲壓激振而與側板產生磨擦、碰撞造成明顯雜音。本文主要針對喇叭單體所產生之聲壓透過麥克風取得聲壓傳遞之共振頻率響應，並進行無隔振材及加裝隔振材之音箱做交叉比對，進而找出隔振材最佳的安裝位置並有效降低因結構共振雜音而產生惱人噪音問題。 ;Jigsaw stereo speakers can be repeated due to focus on dismantling and good sense of design, it is generally not possible as traditional speakers of strong, stable in structure, but we can not lose the basic needs of the speakers should be, that is, to achieve a certain level of quality. This paper investigate the effect of three-dimensional jigsaw speaker single speaker audio sound pressure excitation, and produce structural resonance different sound problems and find solutions, because the combination of three-dimensional jigsaw speaker of the assembly through tenon interlocking combination does not use screw, it is not completely closely, so when the single speaker at Bofang various sound effects, changes in the bass tend to make the front and rear plates because the sound pressure and the excitation side to create friction, collisions cause significant noise. In this paper, single speaker for sound pressure generated by the acquired resonance frequency response of the sound pressure transmitted through the microphone, and speakers installed without vibration isolation material and the material than do cross, then find the best vibration isolation material installation position and effectively reduce noise generated due to the resonance structure of annoying noise
Appears in Collections:	[Executive Master of Mechanical Engineering] Electronic Thesis & Dissertation

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