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| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:本文開頭指出了課題研究的意義、現(xiàn)狀及研究目標(biāo)，接著介紹了頻譜分析法、時頻分析法和模式濾波法等信號分析新方法和新技術(shù)，并對其概念及原理方法進(jìn)行了闡述。文章通過對鉆井泵信號、齒輪信號和軸承信號的分析研究，給出了模式濾波法的信號處理過程及其在工程上的應(yīng)用，同時描述了模式濾波法的基本原理及對工程信號的處理，還介紹了其分離信號的操作過程。通過CIS-II型齒輪試驗(yàn)臺及USOX20016系統(tǒng)組成的信號采集裝置測量出齒輪振動信號數(shù)據(jù)（此處同時介紹了信號采集裝置的結(jié)構(gòu)、工作原理和信號數(shù)據(jù)的采集方法，還有操作過程中的注意事項(xiàng)），利用聲振測量數(shù)據(jù)文件處理應(yīng)用軟件對所得的振動信號數(shù)據(jù)進(jìn)行相關(guān)處理，并得到相對應(yīng)的信號頻譜。最后，論文通過齒輪故障診斷的實(shí)例對工程信號特征參數(shù)的變化規(guī)律作了初步研究，并針對相應(yīng)圖形作了簡要分析，其中還介紹了齒輪局部故障的幾種分析方法。 關(guān)鍵詞：信號采集；頻譜分析；模式濾波法；基元分段；周期確定；信號處理
ABSTRACT: The beginning of this article pointes out the significance of the research, current status and research objectives, followed by spectrum analysis, time-frequency analysis method and mode filtering method ,They are new methods and new technologies of the signal analysis , and describes its concepts and principles of methods . Through the analysis of the drilling pump signals, the gear signals and the bearing signals, the paper gives the signal processing of mode filtering method and its application in engineering, describes the basic principles of mode filtering method and the engineering signal processing and also describes the operation of the separated signals. The CIS-II-type gear test rig and USOX20016 system consists of signal acquisition device .By the device, we measured the gear vibration signal data (at the same time, it attentions the structure of the signal acquisition device , working principle and the acquisition methods of the signal, the matters of operation process), The sound and vibration measurement data document processing applications deals with the vibration signal data，getting the corresponding signal spectrum. Finally, the paper makes the instance of the fault diagnosis of gears. I make a preliminary study for the characteristic parameters of the engineering signal variation, and write a brief analysis to the corresponding graphics, which also describes the gear partial failure of several analytical methods. KEY WORDS: signal acquisition; spectrum analysis; pattern filter method; the segmentation of primitive；period ascertaining; signal processing. |
