预览加载中，请您耐心等待几秒...

某新能源汽车真空泵支架振动强度分析与优化.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

某新能源汽车真空泵支架振动强度分析与优化 Abstract Withtheincreasingpopularityofnewenergyvehicles,theimportanceofthesafetyandreliabilityoftheircomponentshasbecomemoreimportantthanever.Thevacuumpumpbracketisoneofthecriticalcomponentsthatensurethenormaloperationofthevacuumpump.Inthisstudy,thevibrationintensityofthevacuumpumpbracketwasanalyzed,andoptimizationmeasureswereproposedtoimprovetheperformanceandsafetyofthebracket. Introduction Innewenergyvehicles,thevacuumpumpisresponsibleforgeneratingnegativepressureinthebrakeboostersystemandimprovingthebrakingperformance.Thevacuumpumpbracketisthecomponentthatsupportsandfixesthevacuumpump.Therefore,thesafetyandreliabilityofthebracketarecrucialtothenormaloperationofthevacuumpumpandthebrakesystem. Basedonthefiniteelementmethod,thisstudyanalyzedthevibrationintensityofthevacuumpumpbracketunderdifferentworkingconditionsandproposedoptimizationmeasurestoimprovetheperformanceandsafetyofthebracket. VibrationAnalysis Firstly,thefiniteelementmodelofvacuumpumpbracketwasestablished.Theanalysisconsideredtheboundaryconditions,includingthemountingpositionanddirectionofthebracketandthevacuumpump.Thesimulationconsideredthedynamicloadandpressureloadunderdifferentworkingconditions. Thesimulationresultsshowthatthebrackethasahighvibrationintensitywhenthevacuumpumpisworking.Themaximumdisplacementandfrequencywereobtained,andthevibrationmodeswereanalyzed. OptimizationMeasures Severalmeasureswereproposedtooptimizethevibrationperformanceofthebracket.Firstly,thematerialofthebracketwaschangedfromsteeltoaluminumalloy,whichreducestheweightofthebracketandimprovesthevibrationdampingperformance.Secondly,thedesignofthebracketwasoptimizedtoreducethestressconcentrationandimprovetheoverallstiffnessofthebracket. Thesimulationresultsshowthattheoptimizedbracketnotonlysignificantlyreducesthevibrationintensitybutalsoimprovesthestressdistributionandstrengthofthebracket. Conclusion Inthisstudy,thevibrationintensityofthevacuumpumpbracketwasanalyzedbyfiniteelementsimulation.Thesimulationresul