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研究生:陳泓亨
研究生(外文):Chen,Hung-Heng
論文名稱:軸承振動分析系統基於嵌入式FPGA平台
論文名稱(外文):Bearing Vibration Analysis System Based on Embedded Field Programmable Gate Array Platform
指導教授:楊文然
指導教授(外文):Yang, Wen-Ren
口試委員:楊文然王朝興陳德超
口試委員(外文):Yang, Wen-RenWang, Chau-ShingChen, Te-Chau
口試日期:2017-07-17
學位類別:碩士
校院名稱:國立彰化師範大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2017
畢業學年度:105
語文別:中文
論文頁數:63
中文關鍵詞:故障檢測有限脈衝響應快速傅立葉轉換
外文關鍵詞:Fault diagnosisFast Fourier transformFinite impulse response
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本文研究一種檢測分析軸承損壞的方法,主要的步驟有三大項,首先是資料量測,這部分主要是利用NI my RIO 1900來量測建立正常軸承,以及損壞軸承的數據資料庫,以便後面的特徵擷取。第二部分是使用WI-FI無線傳輸,本文運用NI my RIO 1900的內建WI-FI模組,使用國家儀器股份有限公司公司(National Instruments)提供的NI MAX軟體設定TCP/IP(Transmission control protocol/Internet protocol)通訊協定來進行無線傳輸。第三部分是特徵擷取分析,本文使用有限脈衝響應(Finite impulse response, FIR)濾波器以及快速傅立葉轉換(Fast Fourier transform)來特徵擷取,觀察分析正常軸承以及損壞軸承的差異。
The thesis presents a system to analyze and monitor bearing damage. The first stage is data measurement. This part mainly uses NI my RIO 1900 to measure normal and abnormal bearing vibration signals. The measured database of bearing and periphery damage for future feature extraction will also be built. The second stage uses WI-FI wireless transmission. The research also uses the NI my RIO 1900 WI-FI module. The National Instruments MAX software is used to set up the TCP / IP protocol for wireless transmission. The third stage is feature extraction analysis. Feature extraction by using FIR filter and FFT in order to observe the difference between normal and damage bearings are implemented.
中文摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vii
表目錄 ix
第一章 緒論 1
1.1研究動機與目的 1
1.2文獻回顧 2
1.3大綱 4
1.4論文架構 4
第二章 軸承檢測分析 6
2.1簡介 6
2.2軸承振動頻率特徵及原理 6
2.2.1主軸旋轉頻率(Shaft rotational frequency, Fr) 7
2.2.2滾珠通過內環軌道某點頻率(Ball pass input raceway frequency, FBPI) 8
2.2.3滾珠通過外環軌道某點頻率(Ball pass outer raceway frequency, FBPO) 8
2.2.4滾珠自轉頻率(Ball rotation frequency, FBS) 9
2.3軸承振動信號分析 9
2.4有限脈衝響應濾波器(Finite impulse response, FIR) 10
2.5無限脈衝響應濾波器(Infinite impulse response, IIR) 12
2.6傅立葉轉換(Fourier transform) 13
2.6.1快速傅立葉轉換(Fast Fourier transform, FFT) 15
2.6.2短時傅立葉轉換(Short-time Fourier transform, STFT) 18
第三章 嵌入式軟硬體系統設計架構 22
3.1簡介 22
3.2硬體系統架構 24
3.2.1 NI myRIO 1900 25
3.2.2數位類比轉換器 27
3.2.3取樣定理 29
3.2.4無線區域網路 29
3.2.5 TCP/IP協定 31
3.2.6 IEEE 802.11 b,g,n 34
3.3軟體系統架構 35
3.3.1 NI LabVIEW2016 36
第四章 實驗設備 38
4.1實驗設備介紹 38
4.1.1變頻器及原理 39
4.1.2軸承座及軸承 40
4.1.3馬達 42
4.1.4加速規 44
4.1.5 IEPE定電源放大器 45
第五章 實驗設計說明與實驗結果 48
5.1實驗說明與設計 48
5.2實驗系統操作流程圖 49
5.3實驗結果分析說明 49
5.3.1在1000RPM特徵頻率說明 49
5.3.2在1000RPM正常軸承狀態 50
5.3.3在1000RPM外圈損壞軸承 51
5.3.4在1200RPM特徵頻率說明 52
5.3.5在1200RPM正常軸承狀態 53
5.3.6在1200RPM外圈損壞軸承 54
5.3.7在1500RPM特徵頻率說明 54
5.3.8在1500RPM正常軸承狀態 55
5.3.9在1500RPM外圈損壞軸承 56
第六章 結論與未來展望 57
6.1結論 57
6.2未來展望 58
參考文獻 59
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