博碩士論文 105323017 完整後設資料紀錄

DC 欄位	值	語言
DC.contributor	機械工程學系	zh_TW
DC.creator	陳柏豪	zh_TW
DC.creator	Po-Hao Chen	en_US
dc.date.accessioned	2018-8-8T07:39:07Z
dc.date.available	2018-8-8T07:39:07Z
dc.date.issued	2018
dc.identifier.uri	http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=105323017
dc.contributor.department	機械工程學系	zh_TW
DC.description	國立中央大學	zh_TW
DC.description	National Central University	en_US
dc.description.abstract	本研究主要分析迴轉式壓縮機內消音罩之較佳設計，以達到減噪之目的。以ANSYS Acoustic ACTxR15.0進行聲場模擬，聲場模擬分為兩部份，其一為僅模擬壓縮機內消音罩之聲場空間；其二為擴大模擬聲場空間至馬達定子上方出口。透過改變消音罩之幾何參數與相關尺寸，並藉由新訂之消音指標改善消音罩設計，新訂之消音指標更接近真實壓縮機運轉之狀況，並且透過實際量測比對；擴大聲場模擬更完整地模擬實際情況。實驗部份為材料聲學特性量測實驗，主要目的為量測壓縮機內吸音材料與馬達定子內線圈的聲學特性，應用於聲場模擬之中，以增加模擬之完整性。	zh_TW
dc.description.abstract	This research focused on the design of the muffler in a rotary compressor. A finite element software, ANSYS Acoustic ACTx R15.0, was used to provide the simulation results. The simulation was divided into two parts. First, the sound field covered only the interior of the muffler. Secondly, the sound field was expanded to the inner space within the compressor. Expanding the simulation space of sound gave different results from the simulation of the muffler. The reduction effects of sound with different designs of mufflers are then compared by examining the values of performance index which is defined as the sum of inner pressures on the compressor’s shell. Beside simulation work, this thesis also presents the design of an impedance tube for measuring acoustic properties of materials, including sound absorbing materials used in compressors.	en_US
DC.subject	消音罩	zh_TW
DC.subject	噪音衰減	zh_TW
DC.subject	Muffler	en_US
DC.subject	Noise reduction	en_US
DC.subject	ANSYS	en_US
DC.title	壓縮機殼內聲場模擬分析與材料聲學特性量測實驗	zh_TW
dc.language.iso	zh-TW	zh-TW
DC.title	Acoustic Analysis of the Compressor and Measurement of Acoustic Properties of Materials	en_US
DC.type	博碩士論文	zh_TW
DC.type	thesis	en_US
DC.publisher	National Central University	en_US