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簡(jiǎn)介：西安工業(yè)大學(xué)碩士學(xué)位論文基于機(jī)器視覺的航空儀表自動(dòng)識(shí)別姓名高梅申請(qǐng)學(xué)位級(jí)別碩士專業(yè)計(jì)算機(jī)技術(shù)指導(dǎo)教師王長元崔雄華20090428THEAUTOMATICRECOGNITIONOFAVIATIONGAUGEWITHPOINTERBASEDONMACHINEVISIONDISCIPLINECOMPUTERTECHNOLOGYSTUDENTSIGNATURESUPERVISORSIGNATURE咿伊嘲ABSTRACTSTUDIESANDAPPLICATIONSOFCOMPUTERVISIONANDPATTEMRECOGNITIONISONEOFTHEFRONTIERSUBJECTSTODAY，WHICHISTHEIMPORTANTFILIATIONOFTHECOMPUTERSCIENCEANDARTIFICIALINTELLIGENCEANDNOWITAPPLIEDTOMANYAREASINCLUDINGNATIONALECONOMYTHEAVIATIONGAUGEWITHPOINTERISWIDELYUSEDINSCIENTIFICEXPERIMENTSANDPRODUCTIONFORITISSIMPLEINSTRUCTUREANDEASYTOUSETHEAVIATIONGAUGEWITHPOINTERREADINGSAREUSUALLYCOMPLETEDBYTHEMANUAL，BUTTHEVISUALERRORANDVISUALFATIGUEMAYCAUSEERRORS，BESIDESREADINGSPEEDISLOWWITHCONTINUINGTHEDEVELOPMENTOFCOMPUTERVISIONTECHNOLOGYINTHEDIGITALIMAGEPROCESSINGDIGITALIMAGEPROCESSINGTECHNOLOGY，PEOPLEISPAYINGMOREATTENTIONONTHEMETHODTHATAPPLYITINTHEAVIATIONGAUGEWITHPOINTERTHEPAPERCHOOSESCOMPUTERVISIONTECHNOLOGYINTHEDIGITALIMAGEPROCESSINGOFTHEAVIATIONGAUGEWITHPOINTERAUTOMATICRECOGNITIONASARESEARCHTOPICSPECIFICANALYSISOFTHEAVIATIONGAUGEWITHPOINTEROFTHEGEOMETRICFEATUREPARAMETERSISGIVENDETAILEDANALYSISANDDISCUSSIONSONTHEAVIMIONGAUGEWITHPOINTEREXTRACTIONPROCESSINTHEMAINAPPLICATIONOFIMAGEPROCESSINGALGORITHMSANDTHETHEORETICALBASISISPRESENTEDAMODIFIEDHOUGHTRANSFORMATIONALGORITHMTOAUTOMATICMETERREADINGINTHEAVIATIONINSTRUMENTPOINTERISPROPOSED，WHICHGREATLYIMPROVINGTHECALCULATINGSPEEDOFLINEAREXTRACTIONOFHOUGHTRANSFORMATION，ANDREDUCINGTHEMEMORYOCCUPIED，WHILEREDUCINGTHELINEARERRORMATCHINGOPPORTUNITIESANDTHEALGORITHMISREALIZEDBYUSINGVCLANGUAGEPROVINGITSEFFECTIVENESSINTHEORYANDPRACTICALTHETHROUGHEXPERIMENTSANDREALIZINGTHEAUTOMATICRECOGNITIONOFTHEAVIATIONGAUGEWITHPOINTERKEYWORDSCOMPUTERVISION；IMAGEPROCESSING；AVIATIONAUGEWITHPOINTER；HOUGHTRANSFORMATION

簡(jiǎn)介：分類號(hào)UDC密級(jí)學(xué)位論文航空電連接器可靠性研究及應(yīng)用作者姓名指導(dǎo)教師副指導(dǎo)教師申請(qǐng)學(xué)位級(jí)別學(xué)科專業(yè)名稱論文提交日期學(xué)位授予日期評(píng)閱人宋洋井元偉教授東北大學(xué)自動(dòng)化研究所梁爽副教授沈陽理工大學(xué)應(yīng)用技術(shù)學(xué)院碩士學(xué)科類別專業(yè)學(xué)位控制工程2010年12月1日論文答辯日期2010年12月24日答辯委員會(huì)主席高憲文高立群劉世棟東北大學(xué)2010年12月獨(dú)創(chuàng)性聲明本人聲明所呈交的學(xué)位論文是在導(dǎo)師的指導(dǎo)下完成的。論文中取得的研究成果除加以標(biāo)注和致謝的地方外，不包含其他人己經(jīng)發(fā)表或撰寫過的研究成果，也不包括本人為獲得其他學(xué)位而使用過的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均己在論文中作了明確的說明并表示謝意。學(xué)位論文作者簽名L家F哥日期山／D、P。弓9學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者和指導(dǎo)教師完全了解東北大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定即學(xué)校有權(quán)保留并向國家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和磁盤，允許論文被查閱和借閱。本人同意東北大學(xué)可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進(jìn)行檢索、交流。作者和導(dǎo)師同意網(wǎng)上交流的時(shí)間為作者獲得學(xué)位后半年口一年口一年半口學(xué)位論文作者等名F孚F彳簽字日期≯PF驢、胗，弓口導(dǎo)師簽簽字日

簡(jiǎn)介：東北大學(xué)博士學(xué)位論文摘要航空薄壁結(jié)構(gòu)在隨機(jī)聲載荷作用下的振動(dòng)響應(yīng)研究摘要本文針對(duì)現(xiàn)代飛行器結(jié)構(gòu)設(shè)計(jì)中的聲疲勞問題，主要研究了航空薄壁板殼結(jié)構(gòu)在高聲級(jí)寬頻帶隨機(jī)噪聲載荷作用下的振動(dòng)響應(yīng)的計(jì)算和分析方法。在基本理論研究基礎(chǔ)上，首先以基本結(jié)構(gòu)單元，包括矩形薄壁板、薄壁圓柱殼作為對(duì)象，建立聲激勵(lì)響應(yīng)的物理模型和數(shù)學(xué)模型，重點(diǎn)探討了響應(yīng)的估算方法和數(shù)值求解方法。通過算例，分析了結(jié)構(gòu)在隨機(jī)聲載荷作用下的響應(yīng)特征，并進(jìn)行影響結(jié)構(gòu)響應(yīng)的有關(guān)參數(shù)對(duì)比分析。然后將所研究的數(shù)值方法應(yīng)用于航空發(fā)動(dòng)機(jī)環(huán)形燃燒室火焰筒薄壁殼結(jié)構(gòu)在燃燒室內(nèi)部噪聲激勵(lì)下的響應(yīng)估算。1薄壁板在聲載荷作用下均方位移和應(yīng)力響應(yīng)的估算。選取各向同性金屬薄壁板結(jié)構(gòu)作為對(duì)象，采用基于正交模態(tài)法的線性模型，實(shí)現(xiàn)該結(jié)構(gòu)在隨機(jī)噪聲載荷作用下動(dòng)態(tài)響應(yīng)的估算。詳細(xì)討論了參與計(jì)算的模態(tài)階數(shù)和邊界條件對(duì)響應(yīng)的影響。算例中采用具有四邊固支邊界條件的矩形硬鋁薄壁板試驗(yàn)件作為對(duì)象，以試驗(yàn)測(cè)得的噪聲載荷作輸入，計(jì)算該結(jié)構(gòu)的動(dòng)態(tài)響應(yīng)，并將計(jì)算結(jié)果與試驗(yàn)結(jié)果進(jìn)行了比較。2薄壁板在聲載荷作用下振動(dòng)響應(yīng)譜的估算方法。從受迫振動(dòng)微分方程出發(fā)，在結(jié)構(gòu)模態(tài)分析基礎(chǔ)上，采用結(jié)合受納函數(shù)描述結(jié)構(gòu)模態(tài)和聲場(chǎng)空間壓力分布的耦合關(guān)系，建立基于正交模態(tài)法的動(dòng)態(tài)響應(yīng)譜計(jì)算模型。算例中對(duì)金屬薄壁板單元的聲激勵(lì)響應(yīng)譜的計(jì)算結(jié)果，反映出寬頻多模態(tài)的特征。該方法清楚地揭示了聲激勵(lì)載荷、結(jié)構(gòu)模態(tài)和振動(dòng)響應(yīng)之間的關(guān)系。3研究了一種基于耦合的邊界元／有限元聲激勵(lì)響應(yīng)分析的聲疲勞應(yīng)力估算方法。該方法用積分方程描述聲對(duì)結(jié)構(gòu)的作用關(guān)系，結(jié)構(gòu)的動(dòng)力學(xué)特性分析采用有限元方法實(shí)現(xiàn)，載荷聲場(chǎng)特性采用聲學(xué)邊界元方法加以模擬，將結(jié)構(gòu)系統(tǒng)的運(yùn)動(dòng)方程和載荷聲場(chǎng)的積分方程聯(lián)立，利用接觸邊界條件進(jìn)行求解。研究了基于輸出位移響應(yīng)功率譜密度PSD，根據(jù)隨機(jī)信號(hào)分析理論和彈性力學(xué)，計(jì)算隨機(jī)應(yīng)力響應(yīng)的方法。選擇薄壁圓柱殼和帶有開孔的薄壁圓柱殼兩種模型，實(shí)現(xiàn)了擴(kuò)散聲場(chǎng)中隨機(jī)聲載荷作用下的振動(dòng)響應(yīng)計(jì)算，包括位移響應(yīng)和應(yīng)力響應(yīng)，論述了算法具體實(shí)現(xiàn)方法，載荷和邊界的處理方法。討論了柱殼結(jié)構(gòu)在隨機(jī)聲載荷作用下的響應(yīng)特征。4應(yīng)用。基于耦合的邊界元／有限元聲激勵(lì)響應(yīng)分析的聲疲勞應(yīng)力估算方法”，計(jì)算航空發(fā)動(dòng)機(jī)環(huán)形燃燒室火焰筒薄壁殼結(jié)構(gòu)的振動(dòng)響應(yīng)及應(yīng)力。首先對(duì)燃燒室火焰筒薄壁殼結(jié)構(gòu)模態(tài)進(jìn)行有限元計(jì)算，利用耦合的邊界元，有限元方法，以實(shí)測(cè)燃燒室內(nèi)部噪Ⅱ東北大學(xué)博士學(xué)位論文ABSTRACTVIBRATIONRESPONSEINVESTIGATIONONAIRCRAFTTHINS旬RUCTUREUNDERRANDOMACOUSTICLOADSABS仃ACTASTOTHESONICFATIGUEPROBLEMINTHEMODEMFLIGHTVEHICLESTRUCTUREDESIGN,THETHESISMAINLYINVESTIGATEDTHEMETHODSFORESTIMATIONANDANALYSISOFTHEVIBRATIONRESPONSEOFAIRCRAFTTHINPANELANDSHELLSTRUCULRETONUIDOMACOUSTICLOADSWITHHIGHLEVELSOUNDPRESSUREANDWIDEFREQUENCYBANDBASEDONRELEVANTTHEORETICALRESEARCH,WITHTHEBASICSTRUCTURESPECIMENS,WHICHINCLUDEARECTANGULARTHINPANELANDTHINCYLINDRICALSHELL，ASRESEARCHMODEL,THEPHYSICALANDMATHEMATICALMODELOFTHERESPONSETOACOUSTICEXCITATIONARCSETUP,THEESTIMATIONMETHODANDNUMERICALSOLUTIONMETHODFORTHERESPONSEARCINVESTIGATEDEMPHATICALLYBYNUMERICALEXAMPLESTHERESPONSECHARACTERISTICSOFTHE鰣N雎TI聰SUNDERRANDOMACOUSTICLOADSAREANALYZED,ANDTHECOMPARISONANALYSISOFTHEINFLUENCEPARAMETERSTOTHERESLXNSEARECONDUCTED蠲WELLTHENAPPLYINGTHENUMERICALMETHODPRESENTEDINTHETHESISTOESTIMATETHERESPONSEOFANNEROENGINEANNULARCOMBUSTORLINERTHINSHELLSTRUCTUREEXCITEDBYTHENOISEINNERCOMBUSTIONCHAMBER1ESTIMATIONOFM鋤SQUAREDISPLACEMENTANDS廿齬SRESPONSEOFATHINPANELUNDERACOUSTICLOADSANISOTOPICMENTALTHINPANELISCONSIDEREDASAMODEL，LIIJLJ西NGALINEARMODELBASEDOILASUPERPOSITIONOFORTHOGONALMODES，THEESTIMATIONOFDYNAMICRESPONSEOFTHESTRUCTUREUNDERRANDOMACOUSTICLOADSHASBEENREALIZED11“INFLUENCESOFTHEMODESACCOUNTEDFORTHECALCULATIONANDTHEBOUNDARYCONDITIONSONTHERESPONSEA地DISCUSSEDINDETAILINTHENUMERICALEXAMPLE，AMENTALTHINPANELSPECIMENWITHCLAMPEDBOUNDARYISSELECTEDASAMODEL，WITHTHEMEASUREDNOISEASTHEINPUTLOADS，THEDYNAMICR娜115EOFTHESMLCTUREISCALCULATED,ANDCALCULATEDRESULTSARCCOMPAREDWITHTHETESTEDDAM2ESTIMATIONMETHODFORRESP佃SEPOWERSPECTRUMOFATHINPANELUNDERACOUSTICLOADSFROMTHEGOVERNINGMOTIONEQUATIONOFAPANEL，ANDBASEDONSTRUCTUREMODALANALYSIS，USINGTHEJOINTACCEPTANCEFUNCTIONTOCONSIDERTHECOUPLINGACTIONBETWEENSTRUCTUREMODESANDTHESOUNDPRESSURESPATIALDISTRIBUTIONINTHEFIELD,THECALCULATIONMODELOFDYNAMICRESPONSEPOWERSPECTRUMHASBEENESTABLISHEDONTHEBASISOFASUPERPOSITIONOFORTHOGONALMODESINTHENUMERICALEXAMPLE，THECALCULATIONRESULTSOFTHERESPONSEPOWERSPE曲RUMOFATHINPANELUNDERACOUSTICLOADSGIVETHEWIDEFREQUENCYBANDANDMULTIMODECHARACTERISTICSTHEMETHODCLEARLYREVEALSTHERELATIONSAMONGACOUSTICLOADS,STNLCTUREMODES，ANDVIBRATIONRESPONSEIV

簡(jiǎn)介：中圖分類號(hào)TP3021論文編號(hào)102871613S023學(xué)科分類號(hào)081200碩士學(xué)位論文綜合化航空電子資源融合機(jī)制研究研究生姓名許文平學(xué)科、專業(yè)計(jì)算機(jī)科學(xué)與技術(shù)研究方向綜合化航空電子指導(dǎo)教師谷青范副教授南京航空航天大學(xué)研究生院計(jì)算機(jī)科學(xué)與技術(shù)學(xué)院二О一二年十二月NANJINGUNIVERSITYOFAERONAUTICSANDASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFCOMPUTERSCIENCEANDTECHNOLOGYRESEARCHONRESOURCEFUSIONFORINTEGRATEDMODULARAVIONICSSYSTEMATHESISINCOMPUTERSCIENCEANDTECHNOLOGYBYXUWENPINGADVISEDBYASSOCIATEPROFGUQINGFANSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFENGINEERINGDECEMBER,2012

簡(jiǎn)介：論文題目基于二次調(diào)制的超短波航空數(shù)據(jù)通信系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)研究工程領(lǐng)域電子與通信工程指導(dǎo)教師熊金濤教授作者姓名張一學(xué)號(hào)200530202032獨(dú)創(chuàng)性聲明本人聲明所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。據(jù)我所知，除了文中特別加以標(biāo)注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得電子科技大學(xué)或其它教育機(jī)構(gòu)的學(xué)位或證書而使用過的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說明并表示謝意。簽名日期年月日關(guān)于論文使用授權(quán)的說明本學(xué)位論文作者完全了解電子科技大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定，有權(quán)保留并向國家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和磁盤，允許論文被查閱和借閱。本人授權(quán)電子科技大學(xué)可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進(jìn)行檢索，可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。（保密的學(xué)位論文在解密后應(yīng)遵守此規(guī)定）簽名導(dǎo)師簽名日期年月日

簡(jiǎn)介：中圖分類號(hào)V2337論文編號(hào)102870213S023學(xué)科分類號(hào)082502碩士學(xué)位論文航空發(fā)動(dòng)機(jī)PID控制頻域設(shè)計(jì)方法研究研究生姓名唐鈺婷學(xué)科、專業(yè)航空宇航推進(jìn)理論與工程研究方向航空發(fā)動(dòng)機(jī)控制指導(dǎo)教師黃金泉教授南京航空航天大學(xué)研究生院能源與動(dòng)力學(xué)院二О一二年十二月NANJINGUNIVERSITYOFAERONAUTICSANDASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFENERGYANDPOWERENGINEERINGRESEARCHONFREQUENCYDOMAINDESIGNMETHODOFPIDCONTROLFORAEROENGINESATHESISINAEROSPACEPROPULSIONTHEORYANDENGINEERINGBYTANGYUTINGADVISEDBYPROFHUANGJINQUANSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFENGINEERINGDECEMBER,2012