資源描述:
《高速線材軋機在線監(jiān)測系統(tǒng)》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫。
1、本科畢業(yè)設(shè)計題目:高速線材軋機在線監(jiān)測系統(tǒng)學(xué)院信息科學(xué)與工程學(xué)院專業(yè)自動化學(xué)號200704134167學(xué)生姓名朱鏡輝指導(dǎo)教師周鳳星答辯日期2011年6月8日摘要針對高速線材軋在線監(jiān)測系統(tǒng)的要求,主要是對同步齒輪箱進(jìn)行在線監(jiān)測和故障診斷,在圖形化虛擬儀器開發(fā)環(huán)境LabVIEW的平臺上設(shè)計了同步齒輪箱在線監(jiān)測與故障診斷系統(tǒng)。該系統(tǒng)已成功應(yīng)用于鄂鋼高速線材軋機生產(chǎn)線上,已經(jīng)多次檢測出同步齒輪箱的早期故障,可以避免了設(shè)備重大事故的發(fā)生,為企業(yè)的經(jīng)濟效益的提高做出了重要貢獻(xiàn)。本論文主要研究了在線狀態(tài)監(jiān)測與故障診斷系統(tǒng)的開發(fā)流程圖及其軟件和硬件功能模塊的設(shè)計。設(shè)計開發(fā)流程主要包括
2、選取監(jiān)測點、安裝和調(diào)試傳感器、信號硬件預(yù)處理和LabVIEW信號分析平臺的構(gòu)建等。硬件模塊主要包括開發(fā)了具有自主知識產(chǎn)權(quán)的信號調(diào)理箱,轉(zhuǎn)接端子,NI6220數(shù)據(jù)采集卡;軟件設(shè)計在現(xiàn)代信號處理平臺LabVIEW上完成,實現(xiàn)信號的采集和存儲、信號的分析處理、各種算法的實現(xiàn)、故障診斷、故障報警、時域和頻域波形顯示。信號處理的方法包括時域分析、頻域分析、小波分析、倒頻譜分析及多種性能指標(biāo)的計算。監(jiān)測系統(tǒng)能夠?qū)ν烬X輪箱進(jìn)行24小時的狀態(tài)實時監(jiān)測,進(jìn)行在線故障診斷與故障報警,而且將故障報警數(shù)據(jù)送到指定的數(shù)據(jù)庫中,便于隨時進(jìn)行數(shù)據(jù)查詢和分析。關(guān)鍵詞:高速線材軋機;同步齒輪箱;狀態(tài)
3、監(jiān)測;故障診斷AbstractForhighspeedwirerodrollinglinemonitoringsystemrequirements,mainlyforsynchronousgearboxlinemonitoringandfaultdiagnosis,thegraphicaldevelopmentenvironmentLabviewvirtualinstrumentwasdesignedontheplatformsynchronizedgearboxlinemonitoringandfaultdiagnosissystem.Thesystemhasbee
4、nsuccessfullyappliedtothejawofsteelrodmillproductionline,hasbeenrepeatedlydetectedintheearlysynchronousgearboxfailure,thedevicecanavoidtheoccurrenceofmajoraccidents,theeconomicefficiencyofenterpriseshasmadeimportantcontributions.Thepaperprimarilyresearchesthedevelopmentofsystemofconditi
5、onmonitoringandfaultdiagnosisandtheimplementingmethodofhardwareandsoftwaremodules.Thedevelopmentofsystemincludestestpointselection,sensorsinstallation,signalpre-processbyhardwareandsignalanalysisplatformconstructedbyLabVIEW.Hardwaremoduleincludessignalprocessboxwithindependentintellectu
6、alpropertyright,conversioninterfaceandNI6220dataacquisitionboard.SoftwaremoduleusesLabVIEW,whichisusedtocollectandprocesssignals,achievekindsofalgorithms,storeanddisplaythefaultinformation.Themethodsofprocesssignalincludeatime-domain,frequency-domain,wavelet,cepstrumandcalculationkindso
7、ffunctionfeature.Systemcansimultaneouslymonitorgearboxin24hours,completetheon-linediagnosisandalarm,on-linediagnosis,andrecordthealarmdatatothedatabaseforinquiringandanalyzing.Keywords:Synchronousgearbox;Conditionmonitoring;Faultdiagnosis目錄1緒論11.1故障診斷學(xué)11.2機械設(shè)備故障診斷目的、意義、內(nèi)容和國內(nèi)外研究