旋转行波超声电机结构设计论文[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目旋转行波超声电机结构设计信机系机械工程及自动化专业学号学生姓名指导教师（职称副教授）2013年5月25日无锡太湖学院本科毕业设计（论文）诚信承诺书本人郑重声明所呈交的毕业设计（论文）旋转行波超声电机结构设计是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班级机械94学号0923206作者姓名2013年5月25日III摘要超声电机是利用压电陶瓷的逆压电效应，激励弹性体产生谐振作用，把电能转换成微米级振幅的振动，再依靠定子和转子之间产生的摩擦耦合将这细微振动扩大为转子及与之相联的轴的旋转运动。与传统电磁电机相比，具有质量小、结构简单、高效率、低噪音、低速大转矩和可以直接驱动负载等特点。在航空航天、精密仪器、生物医学与许多重要领域等具有广阔的应用前景。适应于工程上对超声电机的需要，本文设计了一种旋转型行波超声电机，主要完成了以下工作1.总结分析了国内超声电机技术的现状、发展及所存在的问题2.阐释了旋转行波超声电机的运动机理3.利用ANSYS软件建立了超声电机定子的数学模型，利用模型对定子的工作模态进行分析并计算，确定超声电机的定子的工作模态4.完成了直径超声电机的装配图和零件图的设计关键词超声电机模态分析设计IVAbstractUltrasonicMotorusestheeffectofPiezoelectricfromPiezoelectricceramic,anditproducetheeffectofresonanceexcitationbytheActiveMaterials.Thattheelectricalenergytransformtothemicrodeformations.Topropeltherotorandthedriveshaftconnectedtoitthoughtheamplificationofthemicrodeformationoftheactivematerialthatdependsonfrictionattheinterfacebetweenrotorandstator.TheUltrasonicMotorofferlightmass,simplyconstructions,hightorquedensityatlowspeed,lownoise,efficientandactuatedirectlytotheload.Ultrasonicmotorintheaviationandaerospace,precisioninstruments,biomedicineandanumberofimportantareashasbroadapplicationprospects.Projectsadaptedtotheneedsoftheultrasonicmotor,Inthispaper,thedesignarotarytravelingwavetypeultrasonicmotor,themaincompletedthefollowingwork1.Summaryanalysisofthedomesticstatusofultrasonicmotortechnology,developmentandtheproblems2.Toexplaintherotarytravelingwaveultrasonicmotorofthemovementmechanism3.TheuseofANSYSsoftware,theestablishmentofaultrasonicmotormathematicalmodel,usingthemodeloftheworkofthestatormodalanalysisandcalculationtodetermineastatorultrasonicmotormodeofwork4.CompletedaultrasonicmotorassemblydrawingsandpartsofthedesignplanKeywordUltrasonicMotorModalAnalysisDesignV目录摘要......................................................错误未定义书签。Abstract....................................................................IV目录........................................................................V1绪论......................................................................11.1超声电机的定义........................................................11.2超声电机的特点........................................................11.3超声电机的发展历史....................................................21.4超声电机的应用及发展前景..............................................41.5本次课题的研究方向及安排..............................................42旋转行波超声电机的工作原理................................................52.1引言..................................................................52.2旋转行波超声电机的机械结构............................................52.3超声电机的工作原理....................................................52.4压电陶瓷的工作原理....................................................62.5定子行波的产生........................................................72.6定子表面质点运动分析..................................................92.7本章小结.............................................................113定子模态分析计算.........................................................123.1导言.................................................................123.2固有频率的理论计算...................................................123.2.1共振频率计算......................................................123.2.2共振振幅的计算....................................................143.3定子建模分析.........................................................153.3.1ANSYS软件简介..................................................153.3.2ANSYS定子建模...................................................163.3.3定子分析..........................................................183.4本章小结.............................................................204结构设计.................................................................224.1导言.................................................................224.2设计流程.............................................................224.3定子机构设计.........................................................234.3.1定子内外径设计....................................................244.3.2模态阶数选择和振动模态设计........................................244.3.3定子厚度..........................................................254.3.4驱动齿设计........................................................254.3.5内支撑板设计......................................................25