基于柔順機(jī)構(gòu)SMA扭轉(zhuǎn)驅(qū)動器設(shè)計(jì)及實(shí)驗(yàn)研究.pdf

1、中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文基于柔順機(jī)構(gòu)SMA扭轉(zhuǎn)驅(qū)動器設(shè)計(jì)及實(shí)驗(yàn)研究姓名：唐森申請學(xué)位級別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：楊杰；董二寶20110525摘要6AbstractAbstractPositioningmanipulatsarefoundinopticalengineeringprecisionmachiningmedicaloperationsmicromanipulation.Traditionalpositioning

2、manipulatsusemotizedballbearingscrewswithfeedbackfromencoderstoachievelinearrotarymotion.Althoughtheirtechnologiesarewelldevelopedtheyconsistofmanymovingpartsaresubjecttowearbacklash.Toincreaseaccuracycompactnessofpositi

3、oningmanipulatsVariousactuatingtechniqueshavebeenproposedasalternativesfmanipulatsespeciallyatthemicroscale.Amongthemmagicelectrostaticthermalactuatshavebeenapplied.Analternativeisshapememyalloy(SMA)whichexhibitslargestr

4、okelargeenergydensitylowdrivingvoltage.SMAiscategizedbythetwotypesofshapememyeffectsitexhibits.AlthoughSMAoftwowayeffectprovidescontractivetensilefcesitstensilefceismuchsmallerthancontractionfcerecoverablestrainnmallyles

5、sthanhalfthatofonewaytype.ThusSMAactuatsofonewayeffectespeciallywirestriptypealloyaremeattractiveinaerospaceroboticapplications.Thispaperdescribestheshapememyalloymaterialsmechanicalpropertiestheadvantagesdisadvantagesof

6、compliantmechanismsbasedonthedesignaonewayshapememyeffectofNiTimemyalloymaterialasthedrivingcomponentthedrivecompliantmechanismsasthedrivingmechanismdesignSMAbasedcompliantmechanismstoreversethedrivedrivethemodelingsimul

7、ationanalysisfinallythroughtheexperimenttotestthedrivewithalightweighttwowaydrivethelargertheoutputtquelargeoutputangledriveperfmance.Drivehasbeendesignedtodriveperfmancedata.Finallythepapergivesthemainconclusionsofthisr

8、esearchinnovationmadefollowupresearchwkmainlytoimprovestructuraldesignfurtherreducingthequalityvolumeofthedrivetoachievecompactlightweightlargetquelargeoutputanglehighprecisionSMAtsionalactuat.KeyWds:SMAcompliantmechanis