臺灣博碩士論文加值系統

由於齒輪加工情形複雜，製造與裝配誤差在所難免，這些誤差皆會影響高轉速下齒輪的振動情形，但產生振動因素太多，僅由最終之振動情形找出誤差成因卻有一定的難度。
本文主要以齒輪對為研究對象，利用線上齒輪嚙合振動檢測系統。以傅利葉頻譜分析擷取訊號特徵，由於齒輪嚙合時，其嚙合頻與其倍頻之間、嚙合頻與其邊頻之間、嚙合頻倍頻與其邊頻之間有一定之關連性，所以可應用頻譜分析於齒輪振動檢測技術上；設定齒輪對運轉時不同狀況的模擬，提取振動訊號進行判斷，觀察在不同條件下齒輪對運轉之情形，如齒數不同時對背隙的變化、不同齒數之齒輪增加小鐵屑的變化、不同齒數齒面上增加小質量的變化或具偏擺，歸納實驗所得到的結果並進行討論，以了解各種製造及組裝誤差之成因。

Due to the complexity of gear manufacturing process, the machining and assembly errors are two main factors in gear vibration and the associated noise. This thesis focuses on the investigation of gears vibration applying signal processing techniques. The signals play an important role in detecting the gears faults. Owing to the relations among spectral characteristics of the gears, rotational harmonics, the Gear Mesh Frequency(GMF), and the GMF harmonics and their sidebands, spectrum analysis can be applied in the gear vibration detection technologies. Different conditions are set in the experiment to study the vibrations. In the eperiment, effects of different teeth numbers of the gears, backlash, small iron shaving or mass attached on the gears surface, are studied by the FFT spectrum.

中文摘要---------------------------------------------- i
英文摘要---------------------------------------------- ii
誌謝 ------------------------------------------------- iii
目錄 ------------------------------------------------- iv
圖目錄------------------------------------------------ vii
表目錄 ----------------------------------------------- x
第一章 緒論
1.1 前言-------------------------------------------- 1
1.2 文獻回顧------------------------------------------ 1
1.3 齒輪及齒輪箱診斷技術現況------------------------ 3
1.4 目前齒輪箱故障診斷存在的問題-------------------- 5
第二章 齒輪及齒輪箱振動噪音產生的原理
2.1 介紹-------------------------------------------- 6
2.2 齒輪振動原理分析-------------------------------- 6
2.3 齒輪及齒輪箱振動信號處理方法------------------- 8
2.3.1 振動信號---------------------------------- 8
2.3.2 頻譜分析與離散頻譜分析-------------------- 9
2.3.3 頻域分析---------------------------------- 13
2.4 齒輪箱故障信號分析處理-------------------------- 17
2.4.1 嚙合頻率及其各次諧波---------------------- 17
2.4.2 齒輪嚙合頻率及其諧波的故障特徵------------ 18
2.4.3 齒輪固有頻率為截波的共振調制-------------- 18
2.4.4 箱體固有頻率為截波的共振調制------------- 19
2.4.5 激勵能量對不同調制振動的影響-------------- 19
第三章 窗型函數
3.1 窗型函數---------------------------------------- 22
第四章 齒輪振動之量測設備及測試規劃
4.1 泛用型齒輪測試機之建構-------------------------- 31
4.2 實驗設備---------------------------------------- 31
第五章 齒輪及齒輪箱故障診斷實例
5.1 齒輪箱故障的振動診斷策略------------------------ 43
5.1.1 齒輪振動振動噪音產生機制理論-------------- 45
5.2實驗機床振動診斷--------------------------------- 46
5.2.1 單齒腹測試機台頻率------------------------ 49
5.2.2 研磨41齒齒輪振動頻率---------------------- 50
5.2.3 背隙對振動頻率的影響---------------------- 53
5.2.4 37齒齒輪振動頻率----------------------------- 59
5.2.5 考慮背隙時之37齒研磨齒輪振動頻率---- 62
5.2.6 41齒齒輪小質量振動頻率-------------- 68
5.2.7 37齒齒輪小質量振動頻率-------------- 72
5.2.8 41齒齒輪偏擺振動頻率---------------- 76
5.2.9 37齒齒輪偏擺振動頻率---------------- 84
5.2.10 41齒齒輪鐵屑振動頻率---------------- 91
5.2.11 37齒齒輪鐵屑振動頻率---------------- 96
第六章 結論與未來展望
6.1 結論 -------------------------------------------- 101
6.2 未來展望------------------------------------------ 102
參考文獻---------------------------------------------- 103
Extended Abstract
簡歷

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