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1、管道腐蝕缺陷超聲導波檢測仿真研究摘要:超聲導波檢測主要是導波在工件中的傳播特性,導波在工件中傳播能量會損失,同時,傳播過程遇到兩種不同的聲阻抗時,導波會發(fā)生反射。其工作理論是聲源產(chǎn)生超聲波投入管子,當在管子中傳播并與缺陷發(fā)生作用,讓其傳播方向發(fā)生改變,被回收設備所接管,并對它進行管理和分析。超聲導波檢測技術相對其他檢測技術的優(yōu)勢。第一,其傳播過程衰減很小,可傳播很遠的距離;第二,適合長距離管道的大范圍檢測;第三,對所檢測的管道不用做處理,大大降低了檢測成本;第四,可同時對管道外觀和里面的弊端進行檢測。所以,研究超聲導波技術在油氣管道缺陷檢測中的應用具有重要意義和發(fā)展前景。通
2、過超聲導波理論對工件侵蝕進行理論性剖析,探討導波對哪種范例的侵蝕性弊端檢出靈敏度更高。并通過ANSYS軟件對工件侵蝕舉行仿真研究,進一步證明所得出的理論結果。同時仿真研究有著實驗所沒有的優(yōu)勢,它可以在實驗條件不足的情況下進行研究。仿真可以在實驗條件不足的情況下完成相關的研究,降低各種損耗。所以在實驗不太方便進行的情況下,仿真是一種不錯的選擇。關鍵詞:管道腐蝕;超聲導波檢測技術;仿真指導老師簽名:SimulationResearchofultrasonicguidedwavetestingofpipelinecorrosiondefectsStudentname:xukaic
3、lass:110813Teacher:longshengrongAbstract:Ultrasonictestinggroupifthepropagationcharacteristicsofultrasonicguidedwavesintheworkpiece,theguidedwavepropagationearlyartifactsenergyislost,whilethepropagationofacousticimpedanceoftwodifferentencountersthatoccurguidedwavewillbereflected.Itsworking
4、theoryisthattheultrasonicsoundsourceinputpipe,whenGuanZizhongtransmissionandinteractwithdefects,tochangeitsdirection,wastakenoverbyrecyclingequipment,andmanagementandanalysis.Theoreticalanalysisofpipelinecorrosionbyguidedwaveultrasonicprinciple,investigatewhattypeofguidedwavecorrosiondefec
5、tdetectionsensitivityhigher。First,thepropagationattenuationisverysmall,cantravellongdistancesand;secondly,suitableforawiderangeoflongdistancepipelinedetection;andthird,don'thavetodoforthedetectionofpipelineprocessing,greatlyreducesthecost;Finally,youcansimultaneouslydetectthedefectsinandap
6、pearance。Therefore,thestudyofultrasonicguidedwavetechnologyinpipelinedefectdetectionisofgreatsignificanceanddevelopmentprospectsByultrasonicguidedwavetheoryoftheworkpieceaggressiveconducttheoreticalanalysis,toexplorewhatkindofparadigmguidedwaveerosionontheAbuseofhigherdetectionsensitivity.
7、ByANSYSsoftwaresimulationoftheworkpiecehelderosion,furtherproofofthetheoreticalresultsobtained。Whilenottheadvantagesofsimulationwithexperiment,itcanincaseofinsufficientexperimentalconditionswasstudied。Thesimulationcanbedoneincaseofinsufficientexperimentalcondi