臺灣博碩士論文加值系統

傳統製作馬達原型機時，有耗時過長的缺點，使其馬達設計受限於製程而沒辦法快速回饋給工程師。本研究的設計目標為應用積層製造實作一顆用在調理機的切換式磁阻馬達，並整合亥姆霍茲共振腔以達到低噪音的訴求。該類型的馬達因為沒有稀土磁鐵而可以在製作成本上占有優勢，其最大的缺點為其轉矩漣波、噪音而無法普及應用。本論文主動上透過改變轉子結構以解決轉矩漣波的問題，再透過蜂巢結構的肋部，降低漏磁，以有限元素軟體模擬設計結果；輔助安裝不導磁材料，降低風阻，並以亥姆霍茲共振腔安裝在馬達徑向、軸向上，被動式地減少其穩態下的單頻噪音，整合建立一套設計流程。在製程方面，本研究利用金屬積層製造，實現新型三維結構之切換式磁阻馬達轉子設計，具有降低轉矩漣波、風阻之功能；透過量測到的目標單頻噪音製作亥姆霍茲共振腔，最後以實測驗證模擬結果與積層製造技術應用於切換式磁阻馬達，並整合亥姆霍茲共振腔之可行性。

This paper presents a novel design for switched reluctance motors characterized by the reduction of torque ripple and windage loss. An asymmetric rotor skew structure is proposed to decrease the torque ripple and investigated by both 2D and 3D finite element analysis (FEA) simulations. The Helmholtz resonators are employed as the motor shell to lower the vibration noise. Moreover, the prototype is constructed by additive manufacturing (namely 3D printing); thus, the performance of the proposed design is verified.

中文摘要I
AbstractII
致謝X
目錄XII
表目錄XV
圖目錄XVI
符號表XXII
第一章 緒論1
1.1 前言1
1.1.1 積層製造背景1
1.1.2 切換式磁阻馬達4
1.2 文獻回顧6
1.3 研究動機與目的10
1.4 論文架構11
第二章切換式磁阻馬達原理及理論建立12
2.1 切換式磁阻馬達原理12
2.2 切換式磁阻馬達運轉特性17
2.3 切換式磁阻馬達轉矩漣波19
2.4 切換式磁阻馬達的基本方程式21
2.5 切換式磁阻馬達磁共能和轉矩轉換31
2.6 切換式磁阻馬達相數選擇34
2.7 切換式磁阻馬達可行性三角法36
第三章 亥姆霍茲共振腔原理及理論建立39
3.1噪音控制的原理39
3.1.1 噪音控制39
3.1.2 噪音的定義39
3.1.3 吸音率40
3.1.4 吸音材料40
3.1.5 聲音加權:A、C、D、G、F加權41
3.1.6 時間加權：Fast、Slow、Impulse 41
3.2亥姆霍茲共振腔原理42
3.3亥姆霍茲共振腔等效機構44
3.3.1 單腔共振腔共振頻推導46
3.4亥姆霍茲共振腔設計49
3.4.1 共鳴型亥姆霍茲共振腔49
3.4.2 穿孔板亥姆霍茲共振腔53
第四章 切換式磁阻馬達設計56
4.1切換式磁阻馬達架構56
4.1.1 變轉子結構56
4.1.2 亥姆霍茲共振腔外殼57
4.1.3 散熱方式59
4.1.4 感測方式59
4.1.5 驅動方式59
4.2切換式磁阻馬達設計63
4.3切換式磁阻馬達轉矩漣波分析77
4.3.1 原始轉子77
4.3.2 轉矩漣波的降低方法及其理由79
4.3.3 雙邊極靴角設計81
4.3.4 肋槽設計83
4.3.5 歪斜轉子設計85
4.3.6 肋部設計87
4.3.7 肋部蜂巢結構設計89
4.3.8 最終設計92
4.3.9 靜態轉矩分析94
4.4振動噪音分析95
第五章 切換式磁阻馬達製作與實測結果 98
5.1積層製造的方法 98
5.2切換式磁阻馬達、亥姆霍茲共振腔實作99
5.2馬達量測104
5.2.1 TN曲線量測104
5.2.2 電感曲線量測106
5.3亥姆霍茲共振腔消音效果量測108
第六章 結論與未來建議112
6.1結論112
6.2未來研究建議113
特別感謝 114
參考文獻 115

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