本文關(guān)鍵詞： 滾動軸承 數(shù)據(jù)采集 振動 STM32F103 虛擬儀器 信號分析　出處：《大連工業(yè)大學》2011年碩士論文　論文類型：學位論文

【摘要】：軸承是工程中的重要部件，廣泛應(yīng)用于機械、航空、電力、運輸、紡織等工程領(lǐng)域，它的任何故障都會造成巨大經(jīng)濟損失甚至災(zāi)難性的破壞。據(jù)統(tǒng)計，在使用滾動軸承的旋轉(zhuǎn)機械中，大約70％的機械故障是由于滾動軸承而引起的，它的穩(wěn)定性、安全性、可靠性對安全生產(chǎn)、高效率、低功耗具有重要意義。因此，，針對滾動軸承振動監(jiān)測的研究是很有必要，很有實際意義的。本文采用了當今對軸承監(jiān)測最有效的方法——振動分析法，基于LabVIEW開發(fā)了一套軸承振動數(shù)據(jù)采集分析系統(tǒng)，下位機采用32位的STM32F103微處理器進行數(shù)據(jù)的采樣，并通過RS232或USB接口與上位機通信，實現(xiàn)信號數(shù)據(jù)的傳輸，上位機軟件開發(fā)基于LabVIEW平臺，對測試信號進行時域顯示和頻域分析處理，達到對軸承運行狀態(tài)監(jiān)測的目的。 工作內(nèi)容主要分為硬件設(shè)計和軟件設(shè)計兩部分。論文主要進行了以下幾方面的工作： 1.論述了振動數(shù)據(jù)采集分析系統(tǒng)研究的意義和軸承振動測試的相關(guān)理論。 2.設(shè)計并制作以STM32F103微處理器為核心的信號采集電路，對信號進行A/D轉(zhuǎn)換及與上位機RS232或USB通信。 3.編制PC端LabVIEW程序，實現(xiàn)對振動信號進行分析和顯示等功能。 本系統(tǒng)主要適用于對滾動軸承振動信號的采集分析和故障診斷。采用STM32F103系列高性能的ARM Cortex-M332位的RISC內(nèi)核，進行數(shù)據(jù)的采集，保證了數(shù)據(jù)分析的處理速度。上位機軟件開發(fā)基于虛擬儀器LabVIEW開發(fā)平臺，它具有強大的圖形化編程功能和友好的人機界面，能夠?qū)φ駝訑?shù)據(jù)進行實時顯示、時域分析、頻域分析、數(shù)據(jù)存儲等，很好地完成了對軸承的振動測試分析。軟件采用模塊化設(shè)計思想，使系統(tǒng)的維護、改進和功能擴展十分方便。系統(tǒng)功能通過實驗獲得了驗證。
[Abstract]:Bearing is an important part in engineering. It is widely used in mechanical, aviation, electric power, transportation, textile and other engineering fields. Any failure of bearing will cause huge economic loss or even catastrophic damage. According to statistics. In rotating machinery using rolling bearings, about 70% of mechanical failures are caused by rolling bearings, its stability, safety, reliability for safe production, high efficiency. Low power consumption is of great significance. Therefore, it is necessary and practical to study the vibration monitoring of rolling bearings. In this paper, the most effective method of bearing monitoring-vibration analysis method is adopted. A bearing vibration data acquisition and analysis system based on LabVIEW is developed. The lower computer uses 32-bit STM32F103 microprocessor to sample the data. And through RS232 or USB interface to communicate with the host computer to achieve the transmission of signal data, PC software development based on LabVIEW platform, the test signal display in time domain and frequency domain analysis processing. To achieve the purpose of monitoring the running state of bearings. The work is mainly divided into two parts: hardware design and software design. 1. The significance of vibration data acquisition and analysis system and the theory of bearing vibration measurement are discussed. 2. The signal acquisition circuit with STM32F103 microprocessor as the core is designed and fabricated. The signal is converted to A / D and communicates with the host computer RS232 or USB. 3. Programming PC LabVIEW program to realize the function of vibration signal analysis and display. This system is mainly suitable for the vibration signal collection and fault diagnosis of rolling bearing. The RISC kernel of ARM Cortex-M332 bit of STM32F103 series is adopted. The software development of upper computer is based on virtual instrument LabVIEW development platform, it has powerful graphical programming function and friendly man-machine interface. The vibration data can be displayed in real time, time domain analysis, frequency domain analysis, data storage and so on. The improvement and function expansion are very convenient. The system function is verified by experiment.
【學位授予單位】：大連工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH133.33;TP274

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