Vibration_teching_1

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1、ADAMS/Vibration振动分析模块教程内容了解模块功能；了解Vibration与Linear模块的区别；使用Vibration模块进行虚拟振动试验及方案设计。VibrationIssuesFacingEngineersandDesignersHowcomfortableisride,whetherinautomobile,airplane,railcar,oroff-roadmachinery?Willexcitationsinonepartofsysteminteractwithanothe

2、rpartofsystem?Whenproblemsoccur,howcantheybeisolated?IndustryEffortsandMetricsGoodvibrationcharacteristicsarepurchasemotivatorandimprovecustomersatisfactionNeedgoodwaytomeasuredesignOptimumNVHoftenconflictswithotherattributessuchasdurabilityorvehicledyna

3、micperformanceNeedwaytobalancecompetingrequirementsSignificanteffortspenttounderstandandquantifycustomerNVHrequirementsintoobjectivetermsanddefinespecifictestsrelatingtocustomereventsCurrentmethodsareexpensiveIndustryEffortsandMetricsNVHinvolvesbothobjec

4、tiveandsubjectivedevelopmentPartofprocesscanbequantifiedwithanalyticaltoolsSuppliersmust“tune”theirsystems/components(rightthefirsttime)toprototypevehicleorelsetheyareresponsibleforNVHresolutionNeedwaytostudysystemIssuesoftendiscoveredlateinprototypedeve

5、lopmentresultinmoneyandtimelossValueindesigningrightwayTheNeedAwaytostudysystem-levelvibrationsthesamewayyoucannowstudysystem-levelmotionproblems…muchfaster!Solution:ExtendScopeofVirtualPrototypingMotion/PerformanceSafetyDurability/FatigueNoise/Vibratio

6、nTakeyoursystemtodifferentoperatingpointstoanalyzevibratorybehavior(withouthavingtocreatenewmodels)Includeeffectsofhydraulics,controls,andothersubsystemsonvibrationcharacteristicsAnalyzesystemmodesincludingattachmentandothernonlinearcharacteristicsThreeR

7、easonstoUseADAMS/VibrationAnalyzeVibratoryBehaviorinDifferentConfigurationsSatelliteExample:SystemeigenvaluesshiftaccordingtoPaneldeploymentangleLockingconditionContactconditionActualspringratesThisshiftaffectsattitudecontrolmargin,pointingjittermagnitu

8、de,andstructuralloadingconditionsAnalyzeVibratoryBehaviorinDifferentConfigurationsRailcarExample:SystemeigenvaluesshiftaccordingtoEquivalentconicitySuspensionstiffnessesDampercharacteristicsThisshiftaffectsrailcarstabilit