機(jī)械專業(yè)論文中英文

1、邵陽(yáng)學(xué)院機(jī)械工程專業(yè)英語(yǔ)論文1GearboxNoise——CrelationwithTransmissionErrInfluenceofBearingPreload變速箱噪聲變速箱噪聲——相關(guān)的傳輸錯(cuò)誤和軸承預(yù)壓的影響摘要摘要ABSTRACTThefiveappendedpapersalldealwithgearboxnoisevibration.Thefirstpaperpresentsareviewofpreviouslypubli

2、shedliteratureongearboxnoisevibration.Thesecondpaperdescribesatestrigthatwasspeciallydesignedbuiltfnoisetestingofgears.Finiteelementanalysiswasusedtopredictthedynamicpropertiesofthetestrigexperimentalmodalanalysisofthege

3、arboxhousingwasusedtoverifythetheeticalpredictionsofnaturalfrequencies.Inthethirdpapertheinfluenceofgearfinishingmethodgeardeviationsongearboxnoiseisinvestigatedinwhatisprimarilyanexperimentalstudy.Eleventestgearpairswer

4、emanufacturedusingthreedifferentfinishingmethods.Transmissionerrwhichisconsideredtobeanimptantexcitationmechanismfgearnoisewasmeasuredaswellaspredicted.Thetestrigwasusedtomeasuregearboxnoisevibrationfthedifferenttestgear

5、pairs.Themeasurednoisevibrationlevelswerecomparedwiththepredictedmeasuredtransmissionerr.Mostoftheexperimentalresultscanbeinterpretedintermsofmeasuredpredictedtransmissionerr.Howeveritdoesnotseempossibletoidentifyonesing

6、leparametersuchasmeasuredpeaktopeaktransmissionerrthatcanbedirectlyrelatedtomeasurednoisevibration.Themeasurementsalsoshowthatdisassemblyreassemblyofthegearboxwiththesamegearpaircanchangethelevelsofmeasurednoisevibration

7、considerably.Thisfindingindicatesthatotherfactsbesidesthegearsaffectgear邵陽(yáng)學(xué)院機(jī)械工程專業(yè)英語(yǔ)論文3承。有限元模擬表現(xiàn)出同樣的傾向作為測(cè)量值。第五本文介紹如何通過(guò)優(yōu)化變速箱噪聲為減少傳輸錯(cuò)誤齒輪幾何減少。關(guān)于齒輪偏差和不同扭矩的魯棒性考慮，以便找到一個(gè)齒輪幾何給予盡管從名義幾何由于制造公差偏差范圍內(nèi)以適當(dāng)?shù)呐ぞ兀胍舻?。靜態(tài)和動(dòng)態(tài)的傳輸錯(cuò)誤，噪聲，振動(dòng)測(cè)量和該。之

8、間的動(dòng)態(tài)傳輸錯(cuò)誤，房屋振動(dòng)和噪聲的相關(guān)性研究了掃描速度從500到2500在恒轉(zhuǎn)矩轉(zhuǎn)速。沒(méi)有相關(guān)關(guān)系的動(dòng)態(tài)傳遞誤差和噪聲。靜態(tài)加載的傳輸錯(cuò)誤似乎與齒輪副的能力，激發(fā)動(dòng)力系統(tǒng)中的齒輪箱振動(dòng)相關(guān)。Keywds:geargearboxnoisevibrationtransmissionerrbearingpreload.關(guān)鍵詞關(guān)鍵詞：齒輪，變速箱，噪聲，振動(dòng)，傳輸錯(cuò)誤，軸承預(yù)緊力。1INTRODUCTION1引言引言1.1BackgroundN

9、oiseisincreasinglyconsideredanenvironmentalissue.Thisbeliefisreflectedindemsflowernoiselevelsinmanyareasofsocietyincludingthewkingenvironment.Employeesspendalotoftimeinthisenvironmentnoisecanleadnotonlytohearingimpairmen

10、tbutalsotodecreasedabilitytoconcentrateresultingindecreasedproductivityanincreasedriskofaccidents.Qualitytoohasbecomeincreasinglyimptant.Thequalityofaproductcanbedefinedasitsabilitytofulfillcustomers’dems.Thesedemsoftenc

11、hangeovertimethebestcompetitsinthemarketwillsetthestard.Noiseconcernsarealsoexpressedinrelationtoconstructionmachinerysuchaswheelloadersarticulatedhaulers.Thegearboxissometimesthedominantsourceofnoiseinthesemachines.Even

12、ifthegearnoiseisnottheloudestsourceitspurehighfrequencytoneiseasilydistinguishedfromothernoisesourcesisoftenperceivedasunpleasant.Thenoisecreatesanimpressionofpoquality.Indernottobeheardgearnoisemustbeatleast15dBlowertha