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 一般傳動機械如:汽車、機車...等，主要動力來源都是以齒輪傳動為主，本文是探討機車傳動的齒輪，齒輪傳動會因為齒型設計不當、裝配誤差、結構共振、加工精度...等，都可能產生傳動元件的噪音，除了以上的因素齒輪的齒形參數也扮演著極重要的角色，不一樣的參數變化也會影響到齒輪的傳動。 本論文研究內容是齒形幾何參數改變對於傳動穩定度及接觸應力的影響，藉著CAD(Computer Aided Design)電腦輔助設計軟體 Solidworks 建立齒輪模型，在將其模型匯入CAE(Computer Aided Engineering)電腦輔助分析軟體 ANSYS進行暫態分析(transient dynamic analysis)，分析完的結果在匯出經由Matlab來做後端訊號處理，並且利用以傅立葉轉換(Fourier Transform)為基礎的快速傅立葉轉換(Fast Fourier Transform) 做為分析方法，然後針對暫態分析中的作用力來進行時域(time domain) 、頻域(frequency domain) 來做分析及比較，再來判別不同的齒形幾何參數，對於齒輪的齒根應力、傳動穩定上有甚麼影響。最後可以歸納出齒形參數改變的影響，提供一個齒形設計上的分析檢驗流程。
 For general transmission machinery such as cars, motorcycles etc., the main power sources are all generated through transmission of gears. In this paper, the gear of the transmission of a motorcycle is explored. Due to several reasons, for example: improper tooth type design, error of assembly, structural resonance, and machining in accuracy, the transmission gears may produce noise. Also, the gear parameters play important roles of the gear transmission. The focus of this research is the effects of gear geometric parameter on transmission stability and contact stress. By using the CAD (Computer Aided Design) software called Solidworks, gears are modeled. Then the models are imported into CAE (Computer Aided Engineering) software ANSYS to analyze transient dynamic analysis. The results of the analysis are exported to Matlab to do the digital signal process. Finally, the responses of the system are frequency analyzed and also are analyzed in time domain. It is found out that the influence of contact stress and transmission stability is strongly influenced by the gear parameter. It is concluded that a gear design analysis process has been developed by changing the gear design parameter.
 摘要 IAbstract II致謝 III目錄 IV表目錄 VIII圖目錄 IX符號對照表 XV第一章 緒論 11.1 研究動機與目的 11.2文獻回顧 21.3 論文架構 4第二章 傳動元件介紹 52.1 前言 52.2 齒輪簡介 52.2.1 齒輪的種類 62.2.2 正齒輪各部位名稱[27] 112.3 漸開線齒形 152.4 齒輪重要設計參數: 19第三章 基礎理論 213.1 有限元素法[11]、[12] 223.1.1暫態動力學分析:[39]、[40] 233.2 赫茲(Hertz)接觸理論 263.2.1 赫茲接觸理論假設條件: 263.2.2 圓柱體的二維接觸: 263.3 訊號分析理論介紹[33] 333.3.1 離散傅利葉轉換(Discrete Fourier Transform) 33第四章 電腦軟體模擬與分析 364.1分析流程 364.2正齒輪模型建立 384.3 ANSYS齒輪暫態接觸分析 424.3.1元素選用 434.3.2 齒輪網格化 474.3.3 設定接觸面與邊界 514.3.4 齒輪暫態接觸分析 674.4正齒接觸訊號分析 754.4.1快速傅利葉轉換(Fast Fourier Transform FFT) 754.4.2 傳動誤差(Transmission Error) 774.5正齒接觸動力分析 79第五章 改變齒形參數之比較 835.1改變背隙 845.1.1改變背隙之接觸應力及齒根應力比較 845.1.2改變背隙之快速傅利葉轉換(FFT)比較 865.1.3改變背隙之傳動誤差比較 875.2改變壓力角 885.2.1改變壓力角之接觸應力及齒根應力比較 885.2.2改變壓力角之快速傅利葉轉換(FFT)比較 905.2.3改變壓力角之傳動誤差比較 915.3改變移位係數 925.3.1改變移位係數之接觸應力及齒根應力比較 925.3.2改變移位係數之快速傅利葉轉換(FFT)比較 945.3.3改變移位係數之傳動誤差比較 955.4改變中心距 965.4.1改變中心距之接觸應力及齒根應力比較 965.4.2改變中心距快速傅利葉轉換(FFT)比較 985.4.3改變中心距傳動誤差比較 99第六章 結論與未來展望 1006.1結論 1006.2未來展望 102參考文獻 103附錄A 106附錄B 110
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 1 靜音鏈條傳動系統之聲場模擬分析 2 螺旋齒輪及箱體有限元素分析及實驗 3 聲音全像法於傳動系統噪音之分析 4 鈸型結構壓電換能器之聲場模擬分析與實作 5 正齒輪齒頂倒角改善嚙合干涉現象與量測之研究

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