空气净化器振动分析与仿真研究

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1、上海交通大学硕士学位论文空气净化器振动分析与仿真研究姓名：钟凯申请学位级别：硕士专业：轮机工程指导教师：徐筱欣20070101上海交通大学硕士学位论文摘要限元仿真模型，计算了系统的固有频率。其次，用matlab/simulink工具分析了系统内空气净化器及箱装体的振动响应情况，以及减振设计安装中各弹性连接的刚度和阻尼的变化对振动响应的影响。在振动响应分析基础上，本文创造性的采用了多层次模糊综合评判体系对减振设计进行了分析讨论。本文对该体系进行了介绍，并以空气净化器减振设计和振动分析为实例，具体阐述了体系的构建过程。该体系对于有多个振动源的系统的结构设计、减振

2、设计、振动分析可以起到重要的作用。关键词：空气净化器，模态分析，谐响应分析，计算机仿真，多层次模糊综合评判II上海交通大学硕士学位论文ABSTRACTRESEARCHOFVIBRATIONANALYSISANDSIMULATIONANALYSISABOUTAIRFILTERABSTRACTTheAirFilterhastheairdrawingandfiltingability.ItisfixedintheTrunktofilttheairintheTrunkandkeepairquality.Becausethespecialworkingenvironm

3、entoftheAirFilterandtheTrunk,therearehighrequirementsofthevibrationandnoisecontrol.Thispaperdidfrequencyspectumanalysisandcalculatedthemainexcitationsoftheworkingfrequence.Theresultsareimportantandhavepracticalvaluetothefixingwaydesignandfanpartdesign.Thispaperdiddampingdesignforth

4、eAirFilter.The3-dimensionmodeloftheAirFilterwasbuiltinpro/E,andwasanalyzedinANSYS.TheIII上海交通大学硕士学位论文ABSTRACTmodeanalysisandharmonicresponsesanalysishadbeenfinished.TheresultsapprovedthestructuredesignanddampingdesignofAirFilter.ThepaperputforwardsomesuggestionsabouttheAirFilterstru

5、cturedesign.ThispaperdidvibrationtestofmodelmachineoftheAirFilter,andtheresultsapprovedthedampingdesign.OnthebasisofvibrationanalysisoftheAirFilter,thepaperdidfurtherresearchaboutthesystemwhichconsistsoftheAirFilterandtheTrunk.Firstly,thepaperbuiltfiniteelementmodelinANSYSandfinish

6、edmodefrequencecalculationofsystem.Secondly,thepaperusedthetoolsofmatlabandsimulinktoanalyzetheresponsesintheAirFilterandtheTrunkandtheinfluenceofstiffnessanddamp.Andthenthepaperoriginallyusedmulti-levelcomprehensivefuzzyjudgementsystemtoanalyzethedampingdesignandvibrationoftheAirF

7、ilter.Thepaperintroducedthemulti-levelcomprehensivefuzzyjudgementsystemandbuiltajudgementsystemfortheAirFilterandtheTrunk.Thissystemcouldplayanimportantroleinstructuredesign、dampingdesignandvibrationanalysisforsystemswhichhavemorethanonevibrationsource.KEYWORDS:AirFilter,modeanalys

8、is,harmonicresponsesanalys