基于MATLAB-GUI的齿轮箱状态监测和信号处理系统设计与开发

电子科技大学UNIVERSITYOFELECTRONICSCIENCEANDTECHNOLOGYOFCHINA学士学位论文BACHELORDISSERTATION论文题目基于MATLABGUI的齿轮箱状态监测和信号处理系统设计与开发学生姓名韩可学号2011084040030专业电气工程及其自动化学院机械电子工程学院指导教师刘志亮指导单位机械电子工程学院2015年06月03日摘要I摘要齿轮箱是机械设备中常用的连接装置和动力传动环节，在整个生产过程中担负重要的使命。现代机械对齿轮传动要求较高，对机械设备中的齿轮箱定期检测和信号处理具有重要的理论价值和实际价值。本文介绍了状态监测与信号处理的发展和现状；分析了齿轮箱的基本结构和数学模型；研究了傅里叶变换、希尔伯特变换、功率谱密度分析、功率谱分析、倒频谱分析等分析方法。在此基础上以MATLAB为开发平台，利用MATLAB的GUIDE功能，设计开发了一套齿轮箱的状态监测与信号处理系统软件。同时详细论述了整个系统以及各个模块（实时监测模块、数据采集模块，和离线数据分析模块）的设计思路、设计方案、软件实现、关键技术等。关键词：齿轮箱，实时信号采集，信号分析，MATLABGUIABSTRACTIIABSTRACTGearboxiscommonlyusedinmechanicalequipmentandpowertransmissionlinkconnectingmeans.Asanimportantmechanicaltransmissioncomponents,gearshoulderimportantmissioninthewholeproductionprocess.ModernmechanicalgeartransmissionsystemshouldhaveagoodMechanicalbehavior.Togetmechanicalequipmentgearboxperiodictestingandfaultdiagnosishasimportanttheoreticalandpracticalvalue.Thisarticledescribedthedevelopmentandcurrentstatusofconditionmonitoringandfaultdiagnosis;Analyzedthebasicstructureandmathematicalmodelsgearbox;studiedtheFouriertransform,Hilberttransform,Powerspectrumanalysis,Powerspectrumdensityanalysis,cestrumanalysisMethods.OnthebasisofMATLABasadevelopmentplatform,usingMATLABGUIfunctionality,designinganddevelopmentagearboxconditionmonitoringandsignalanalysissystemsoftware.Atthesametimeitdiscussedthewholesystemandeachmodule(real-timemonitoringmodule,dataacquisitionmodule,andoff-linedataanalysismodule)designideas,designmanners,software,keytechnologyindetailed.Keywords:gearbox,real-timesignalacquisition,signalanalysis,MATLABGUI目录III目录第一章绪论.............................................................................................................11.1课题研究背景及意义...........................................................................................11.2国内外研究现状...................................................................................................11.3论文组织结构.......................................................................................................3第二章齿轮箱的基本结构及数学模型.....................................................................52.1齿轮箱的基本结构和组成部件...........................................................................52.1.1齿轮................................................................................................................62.1.2轴....................................................................................................................62.1.3滚动轴承........................................................................................................62.1.4箱体................................................................................................................62.2齿轮箱的数学模型...............................................................................................72.2.1一般共轭啮合齿轮传动的动力学方程........................................................72.2.2齿轮振动的简化模型和产生机理................................................................92.2.3齿轮载荷冲击的周期性...............................................................................112.2.4齿轮传动误差...............................................................................................112.2.5轮齿的啮合刚度..........................................................................................132.2.6齿轮振动中的调制现象..............................................................................142.3本章小结.............................................................................................................19第三章齿轮箱的状态监测和信号处理方法...........................................................203.1时域分析方法.....................................................................................................203.1.1时域波形分析法..........................................................................................203.1.2时域统计特征值分析..................................................................................223.2频域分析方法.....................................................................................................253.2.1傅里叶变换分析法......................................................................................253.2.2希尔伯特变换分析法..................................................................................273.2.3功率谱分析法..............................................................................................293.2.4功率谱密度分析法......................................................................................293.2.5倒频谱分析法..............................................................................................30目录IV3.3加窗函数.............................................................................................................303.4本章小结.............................................................................................................31第四章齿轮箱状态监测和信号处理平台搭建.......................................................324.1系统的整体结构.................................................................................................324.2实时监控系统的设计与开发.............................................................................334.2.1实时监