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《畢業(yè)設(shè)計(jì)（論文）-基于三角放大原理的壓電型精密定位機(jī)構(gòu)研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、摘要論文編號(hào)：論文題目：基于三角放大原理的壓電型精密定位機(jī)構(gòu)研究I摘要摘要本文來(lái)源于“壓電式大負(fù)荷精密驅(qū)動(dòng)方法及機(jī)構(gòu)研究”博士基金課題，對(duì)一種納米分辨力微位移定位機(jī)構(gòu)進(jìn)行了研究。通過(guò)查閱大量相關(guān)文獻(xiàn)資料，提出了以壓電陶瓷驅(qū)動(dòng)器作為驅(qū)動(dòng)元件，以三角放大原理為機(jī)理的柔性鉸鏈機(jī)構(gòu)作為位移輸出的柔順定位機(jī)構(gòu)設(shè)計(jì)方案。文中首先對(duì)微位移定位機(jī)構(gòu)的基本組成和壓電陶瓷驅(qū)動(dòng)器基本理論做了論述，闡述了層疊型壓電陶瓷驅(qū)動(dòng)器的工作原理、柔性鉸鏈的工作原理，并對(duì)柔性鉸鏈的轉(zhuǎn)角剛度公式進(jìn)行了推導(dǎo)，并編制了相應(yīng)的計(jì)算程序。隨后本文進(jìn)行了微位移機(jī)定位機(jī)構(gòu)的設(shè)計(jì)，對(duì)微位移
2、機(jī)構(gòu)的整體結(jié)構(gòu)進(jìn)行了理論分析和建模，得出微位移機(jī)構(gòu)的放大倍數(shù)和力輸出特性，接著利用有限元分析軟件對(duì)微位移定位機(jī)構(gòu)進(jìn)行靜力學(xué)分析，得出了機(jī)構(gòu)的位移輸入和輸出之間的關(guān)系，進(jìn)行了機(jī)構(gòu)的應(yīng)力校核，并對(duì)鉸鏈的參數(shù)進(jìn)行了優(yōu)化設(shè)計(jì)。最后設(shè)計(jì)制作了微位移定位移機(jī)構(gòu)的樣機(jī)，并進(jìn)行了位移—電壓特性、位移分辨力等測(cè)試，對(duì)測(cè)試結(jié)果進(jìn)行了分析后，得出了結(jié)論：定位機(jī)構(gòu)的行程為3.5μm，分辨率為18nm。關(guān)鍵詞:壓電陶瓷驅(qū)動(dòng)器；柔性鉸鏈；三角原理；微位移定位機(jī)構(gòu)；納米分辨力IAbstractAbstractFromtheDr.Foundscheme“Theresea
3、rchonpiezoelectricprecision-drivemethodsandmechanismwithgrandloadingcapacity”，thearticlehasstudiedonemechanismformicro-displacementwithnanometerresolution.Basedonalotofrelativedocuments，thearticlesubmitsthatusesPZTasdrivingelementandflexiblehingeasguidingelementbasedonthe
4、principleoftriangulationamplificationtostructureamicro-displacementmechanism.Firstofall,thearticlediscussedonthemicro-displacementorganizationbasiccompositionandpiezoelectricityceramicsdriverelementtheoryelaboration，thearticlestatedtheoperatingprincipleofPZTdriverandflexi
5、b1ehingeandhasdeducedtheformulaofanglesstiffness.Inthisarticletheprogramforcalculatingtheanglestiffnessofflexiblehingebasbeengiven.Thenthearticlecarriedonthemicro-displacementorganizationdesign，hascarriedonthetheoreticalanalysisandmodelingtothemicro-displacementorganizati
6、onovera11construction，wehasgotthemagnificationandforceoutputcharacteristics，nextthearticlecarriedonstaticanalysisonthemicro-displacementpositioningmechanismusingfiniteelementanalysissoftware.Thedisplacementrelationshipbetweeninputandoutputhasbeengotandthestresscheckofthem
7、echanismhasbeenexecuted.Alsothehingedesignparametershavebeenoptimized.Finallytheprototypeofthemicro-displacementmechanismwasmade.Meanwhilethedisplacement-voltagecharacteristicsanddisplacementresolutionhasbeentest.Finallybyanalyzingthetestresultstheconclusioncouldbedrawn，t
8、hestrokeofpositioningmechanismis3.5μmandresolutionis18nm.Keywords:PZTdriver；Flexiblehinge；Triang
