纵封辊包装机械动力学分析与仿真优化

本科毕业设计（论文）纵封辊包装机械动力学分析与仿真优化学院机电工程学院专业包装工程年级班别学号学生姓名指导教师2012年5月纵封辊包装机械动力学分析与仿真优化机电工程学院摘要随着社会的发展，机械化生产已经逐渐代替大部分的手工劳动，在包装方面更是以机器化生产为主。但就目前情况来看，我国的包装机械生产质量稳定性、精确度等多方面与发达国家之间还存在着一定的差距。原因在于我国的机械设计大多还是沿用传统的经验设计法和类比法，在设计过程中无法对最终产品性能做出预估。虚拟样机技术的出现，恰好填补了这一块空白，利用虚拟样机建模进行仿真，可以事先预知机械的性能。首先，本文从理论上分析了纵封辊包装机械的工作原理和工作特点，分析纵封辊包装机械的速度微调原理及影响输出速度的因素。其次，基于三维建模技术建立了纵封辊包装机械的传动模型。通过虚拟样机技术在ADMAS软件中添加旋转副、驱动力等约束，建立了纵封辊包装机械传动系统的多刚体系统动力学模型。完成了不同调速驱动转速时的仿真实验，并从理论上提出了调整输出轮子响应速度的方法。最后，通过仿真实验，对比分析了对输出速度响应有影响的传动齿轮在不同的质量和转动惯量下输出轮子的速度响应。并得到结果:使用修正后的传动齿轮，能够在符合实际生产条件的前提下，达到相对应的响应速度。关键词：包装机械、纵封器、虚拟样机、仿真优化AbstractWiththedevelopmentofsociety,mechanizedproductionhasgraduallyreplacemostofthemanuallabor,evenbasedonthepackagingmachineproduction-based.Butthecurrentsituation,China'spackagingmachineryproductionqualitystability,accuracyandotheraspectswiththedevelopedcountriesthereisacertaingap.Thereasonisthatmostofourmechanicaldesignstillsticktothetraditionalempiricaldesignmethodandanalogyinthedesignprocesscannotmakeestimatesofthefinalproductperformance.Theemergenceofvirtualprototypingtechnology,justfillthisoneblank,virtualprototyping,simulation,youcanpredictinadvancethatthemechanicalproperties.First,thispapertheoreticallyanalyzestheworkingprincipleandcharacteristicsofthelongitudinalsealingrollersofpackagingmachinery,analysisofthelongitudinalsealingrollerspeedpackagingmachinery,fine-tuningandoutputspeed.Secondly,basedonthethree-dimensionalmodelingtechniquestoestablishthetransmissionmodelofthelongitudinalsealingrollersofpackagingmachinery.Rotaryvice,thedrivingforceconstraintsADMASsoftwarethroughvirtualprototypingtechnology,theestablishmentofamultibodydynamicsmodelofthetransmissionoflongitudinalsealingrollerpackagingmachinery.Completethesimulationofdifferentspeeddrivespeed,andadjusttheoutputspeedofthewheelresponsetheory.Finally,simulationexperiments,thecomparativeanalysisofthespeedofresponseoftheoutputdrivegearoutputspeedofresponseaffectthequalityandthemomentofinertiawheels.Andreceivedtheresults:usingtherevisedtransmissiongearunderrealisticproductionconditions,correspondstotheresponsespeed.Keywords:packagingmachineryverticalvirtualprototypingsimulationoptimization目录1绪论............................................................................................................................11.1包装机械的概念及作用.................................................................................11.2包装机械的发展现状.....................................................................................11.2.1国外包装机械工业的发展..................................................................11.2.2我国包装机械工业的发展状况..........................................................21.3虚拟样机技术综述.........................................................................................41.3.1虚拟样机技术定义..............................................................................41.3.2虚拟样机分类......................................................................................41.3.3虚拟样机技术特点..............................................................................51.3.4虚拟样机的相关建模技术..................................................................61.3.5虚拟样机技术的应用..........................................................................61.4本课题的主要工作内容.................................................................................72、纵封辊包装机械工作原理分析.............................................................................82.1结构原理........................................................................................................82.2结构特点........................................................................................................82.3纵封器随机微调原理.....................................................................................93纵封辊机械虚拟样机建模与仿真分析...............................................................123.1纵封辊机械三维实体建模...........................................................................123.2纵封辊机械的纵封机构虚拟样机建模.......................................................153.2.1ADAMS简介........................................................................................153.2.2利用ADAMS软件进行虚拟样机建模..............................................173.3纵封辊机械虚拟样机运动学和动力学分析...............................................203.3.1运动学分析........................................................................................203.2.2动力学分析........................................................................................233.3纵封辊机械动力学特性仿真分析...............................................................263.3.1参数选取............................................................................................263.3.2参数改变引起的输出速度变化分析................................................284改善方案..................................................................................................................324.1从各传动构件转动惯量改善.......................................................................324.2由各传动构件质量改善...............................................................................32结论与展望...............................................