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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 鄭榮和(Jung-Ho Cheng) | |
dc.contributor.author | WEI LI | en |
dc.contributor.author | 李威 | zh_TW |
dc.date.accessioned | 2021-06-17T04:53:39Z | - |
dc.date.available | 2021-08-06 | |
dc.date.copyright | 2018-08-06 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018-07-29 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71113 | - |
dc.description.abstract | 本研究論文針對長期運轉下感應馬達內部熱量過度集中,導致定子導線、轉子溫度過高等現象,提出可改善馬達內部熱分佈之方法。本文主要從兩方面著手:其一為對馬達外殼進行改進。針對現有殼體水流阻力過大、散熱效果欠佳、製造難度大等缺點,提出一種新型分離式殼體,並通過模擬方式驗證了其改進效果。另一方法為優化馬達內部流場空間。針對馬達轉子處的熱量無法高效傳遞至水套殼體,提出一種方式進行克服。該方法是在轉子矽鋼片上以及殼體外圍新增風道,使馬達內部空氣形成“轉子通道-馬達后部空腔-馬達殼體空氣流道-馬達前部空腔-轉子通道”的循環。同樣通過有限元素模擬的方式與改進前馬達進行穩態時的溫度對比,驗證其改進效果。 | zh_TW |
dc.description.abstract | Considering the overheating problem of winding in induction motor after long term of working, this thesis introduces some methods to promote the heat performance of internal area of motor. This thesis can be divided into two parts. Firstly, in order to overcome the shortages of the all-in-one water jacket, such as large flow resistance, poor heat dissipate performance and difficulties in manufacturing process, it introduces a new type of separated motor shell. The improved effect of it is verified by computation simulation. Secondly, according to the poor heat transfer efficiency from rotor to shell, it introduces a new way to improve the flow field inside motor. The internal flow field of the motor is improved by cutting some ducts through rotor lamination and above the shell, in order to achieve the 'rotor ducts - cavity at the rear of motor - air duct above the motor shell - cavity at the front of motor - rotor ducts' flow circuit. Similarly, the improved effect of it is proved by simulation with CFD. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T04:53:39Z (GMT). No. of bitstreams: 1 ntu-107-R05522323-1.pdf: 5461723 bytes, checksum: ed4d8e551efa5e67237bfd67d3ae257d (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 致謝 I
摘要 II ABSTRACT III 目錄 IV 第一章 緒論 1 1.1 前言 1 1.2 研究動機 3 1.3 論文架構 4 1.4 研究工具介紹 5 1.4.1 Creo Parametric 5 1.4.2 SpaceClaim 6 1.4.3 Motor-CAD 6 1.4.4 Fluent 6 1.4.5 Maxwell 6 第二章 理論背景與文獻回顧 8 2.1 理論背景 8 2.1.1 感應馬達基本原理與構造 8 2.1.2 感應馬達損失與效率 12 2.2 文獻回顧 18 2.2.1熱路法 18 2.2.2有限元素法 23 2.2.3殼體、風道設計 27 2.2.4文獻回顧小結 30 第三章 馬達殼體設計 31 3.1 殼體設計目的 31 3.1.1製造工藝 31 3.1.2散熱效果及壓力損失 32 3.2 殼體設計過程 33 3.2.1內殼體設計 33 3.2.2外殼體設計 35 3.2.3水路設計 37 3.3 水路對比驗證 41 3.3.1與無水路殼體對比 41 3.3.2與原型環繞型七圈水路殼體對比 46 3.4 小結 49 第四章 馬達內部流場優化 50 4.1 馬達模擬模型建立與驗證 50 4.1.1馬達模型建立 50 4.1.2 測試實驗簡介 55 4.2 內部流場優化 61 4.2.1空氣流場計算方式 62 4.2.2馬達內部流場優化設計與驗證 64 4.3 小結 67 第五章 新型馬達風道 68 5.1 新型馬達風道介紹 68 5.2 模擬分析前處理 70 5.3 模擬過程相關設定 73 5.3.1模擬過程假設條件 73 5.3.2演算法及紊流模型選定 73 5.3.3材料性質設定 74 5.3.4邊界條件設定 76 5.4 對比結果討論 77 5.5 小結 82 第六章 研究總結與未來方向 83 | |
dc.language.iso | zh-TW | |
dc.title | 基於CFD及熱路法模擬於電動車感應馬達改良設計 | zh_TW |
dc.title | An Improved Design of Induction Motor for EV with CFD and Thermal Lumped-Circuit Simulation | en |
dc.type | Thesis | |
dc.date.schoolyear | 106-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 劉霆(tliu@ntu.edu.tw) | |
dc.contributor.oralexamcommittee | 呂百修 | |
dc.subject.keyword | 感應馬達,殼體設計,散熱,電腦模擬,風道設計, | zh_TW |
dc.subject.keyword | Induction Motor,Motor Shell Design,Heat Dissipate,Computer Simulation,Flow Duct Design, | en |
dc.relation.page | 87 | |
dc.identifier.doi | 10.6342/NTU201802139 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2018-07-30 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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