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研究生:陳啟鉦
研究生(外文):Ci-Jheng Chen
論文名稱:頓轉轉矩對直流無刷馬達振動之影響與分析
論文名稱(外文):Effect and Analysis of Vibration from Cogging Torque for Brushless DC Motors
指導教授:葉進純葉進純引用關係
指導教授(外文):Jim-Chwen Yeh
學位類別:碩士
校院名稱:國立虎尾科技大學
系所名稱:機械與機電工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:71
中文關鍵詞:無刷馬達頓轉轉矩振動
外文關鍵詞:Brushless DC motorsCogging torquevibration
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近年來,直流永磁無刷馬達(BLDC)被廣泛地應用在各種場合,但由於馬達在結構設計上的差異程度以及裝配上的缺失,或驅動方式的不同會產生大小不一的頓轉轉矩,進而影響到馬達整體的運轉特性並產生振動與噪音。由於無刷馬達的發展,越來越傾向於小型的精密馬達。在此同時對於品質的要求日益提升,針對馬達的振動與噪音問題也更為關切,因而如何降低馬達之振動噪音也就顯的越發重要。
因此本文利用有限元素軟體ANSYS,針對不同的結構與驅動方式來分析馬達的振動與特性,並利用實驗設備量測直流永磁無刷馬達其振動訊號與頓轉轉矩互相比較,來驗證馬達振動與電磁方面的影響。本文分析考慮的問題有(1)馬達的結構自然頻率之影響(2)馬達頓轉轉矩之影響。上述問題皆會影響馬達的振動與噪音,進而產生共振的問題,因此值得深入探討。本論文分析結果可作為永磁無刷直流馬達設計及製作之重要參考依據。
In the recent years, the permanent magnetic brushless DC motors are used extensively. Due to the differences and assembly flaws in the construction design of the motors and the different way of driver program will result different cogging torque. That will influence the operating characteristic and efficiency of motors, and then produces the vibration and noise. Because the development of brushless motor. It trends to be small Precision motors. At that time, quality is needed to be promoted. The vibration and noise need to be deeply concerned. So how to reduce the vibration and noise becomes more and more important.

Therefore, this thesis uses finite element software ANSYS to analyze the characteristic of motors according to different construction and drive way. Furthermore, we use the laboratory equipment to test signal of the permanent magnetic brushless DC motors and compare with the cogging torque to prove the effects of motor vibration and electromagnetic.

In this thesis, the questions which we need to concern are:(1) The effect of construction natural frequencies of the motors.(2) The effect of cogging torque of the motors. Both of the questions will influence the vibration and noise of motors and produce the resonant. It needs to be explored. The analyze results will be the important basis in the design of permanent magnetic brushless DC motors.
中文摘要 ........................... i
英文摘要 ........................... ii
誌謝 ......................... iii
目錄 .......................... iv
表目錄 ........................ vi
圖目錄 ........................ vii
符號說明 ........................... x
第一章 緒論........................... 1
1.1 研究動機與目的............................ 1
1.2 文獻探討............................ 2
1.3 研究方法與論文架構............................ 4
第二章 分析軟體介紹............................ 6
2.1 有限元素法............................ 6
2.2 ANSYS 分析流程與設定........................... 6
2.3 ANSYS 分析運算式........................... 14
第三章 直流永磁無刷馬達........................... 15
3.1 直流無刷馬達........................... 15
3.1.1 直流無刷馬達之種類.......................... 15
3.2 本論文使用之直流無刷馬達.................... 17
3.2.1 直流無刷馬達驅動方式........................... 18
3.3 直流無刷馬達振動來源........................... 24
第四章 直流永磁無刷馬達運轉特性與振動分析............... 26
4.1 馬達頓轉矩模擬分析......................... 26
4.2 馬達運動轉矩模擬分析..................... 29
v
4.3 馬達模態分析.................... 33
4.4 馬達振動實驗與量測................... 39
第五章 實驗結果與討論........................... 52
5.1 振動量測實驗結果與模擬之比較..................... 52
5.2 結果與討論........................... 59
第六章 結論與未來研究方向........................... 63
6.1 結論........................... 63
6.2 未來研究方向........................... 64
參考文獻 ........................... 65
Extend
Abstract
............................ 67
簡歷 .......................... 71
[1] 黃昌圳、孫清華,「最新無刷直流馬達 」,全華圖書,2002。
[2] U. K. Sarkar, S. S. Kakatkar and A. Agarwa, “Target Movement Simulation
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Vibration Sources in Interior Permanent-Magnet Brushless DC Motors”,
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Machines, SME 2003, Gdafisk-Jurata, June 9-11, 2003, pp. 10 (in Polish)
[9] Akira Yoshida, Daisuke Tanaka and Ichiro Miki, “A Study on the Reduction
of Vibration and Acoustic Noise for Switched Reluctance Motor”
Department of Electrical and Electronic Engineering, Meiji University.
[10]Miroslav Markovic, Marcel Jufer, and Yves Perriard, “Determination of
Tooth Cogging Force in a Hard-Disk”, IEEE Transactions on Magnetics,
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“Investigation on Noise and Vibration Origin in Permanent Magnet
Electrical Machine for Elevator”, IEEE Shenyang University of Technology,
Shenyang, P.R.China, 110023
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Calculation of PM Brushless Motors”, IEEE Transactions on Industry
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physics that cause vibration in three-phase motors”. IEEE Industry
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程學系碩士論文,2006。
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