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1、MechanicalvibrationreportIntroductionInourdailylife,vibrationcanbesaidtobeeverywhere,andtheimpactofvibrationonourproductionandlifeisalsogoodandbad.Toimprovetheefficiencyoflargemetallurgicalcoalindustryengineering,vibratoryroller,paverhighwayconstruction,butalsoharmfulvibration:largeequip
2、mentoflargecentrifugalcompressor,nuclearmainpump,aviationturbineengineoncetheconsequencesofunstablevibrationwillbring.Howtomakeuseoftheadvantagesofgoodvibrationandavoidtheharmitbrings,itshouldbeanalyzedfromthemodalanalysisoftheactualstructure.Suchasthevibrationsystem,whichiswidelyusedint
3、hefieldofaerospaceengines,suchasthecombustionchamber,compressor,turbine,etc..Forsuchasystem,inthecourseofoperation,itcanincludevibration,aswellasitsstrengthandstiffnesscanbeartheload,itisrequiredtodesignandcalculate,aheadoftheexperiment.UseMATLABsoftwaretosimulatetheactualvibrationofeach
4、ordernaturalfrequencyandnormalmode,itisfoundthatthenaturalfrequencyandthemainformationscanbeobtainedveryeasily14Mechanicalvibrationreportandquickly.ContentsChap.1MatrixIterationmethodfornaturalfrequenciesandnormalmodesPart1knowledgeoftheory………………………………………………………..3Part2ProgrammingCalculat
5、ion1.programcode......................................................................42.Theresultofprogramming...................................................53.Modeshapecurve...............................................................6Chap.2Transfermatrixmethodfornaturalfrequenci
6、esandnormalmodesPart1.knowledgeoftheory......................................................7Part2ProgrammingCalculation1.programcode........................................................................82.Theresultofprogramming....................................................93.Mo
7、deshapecurve................................................................10Chap3:checktheanswer:(eigenvalueandeigenvetermethod)1.programcode......................................................................112.Theresultofprogramming.................................
