液壓挖掘機鏟斗振動掘削減阻及能耗機理研究.pdf

1、中南大學碩士學位論文液壓挖掘機鏟斗振動掘削減阻及能耗機理研究姓名：胡火焰申請學位級別：碩士專業(yè)：機械設計及理論指導教師：朱建新20070501中南人學碩士學位論文ABATRACTABSTRACTTheaimofthisthesisisimprovingtheenergyefficiencybywayofchangingcuttingmethodAdoptingtheoreticalanalysisandexperimentalresea

2、rch，themechanismofresistancereductionandenergyconsumingruleofvibratoryexcavationofhydraulicexcavatorisanalyzedandverifiedbyexperimentFirstlytheactualityofresearchandapplicationofvibratoryexcavationtechnologyisexpounded，t

3、hepresentedproblemduringresearchprocessispointedoutaftertheresearchactualityofthisprojectiSsunmaarizedResearchingontheeffectofvibratorylOadactingontheprocessofsoilbreakagerevealsthatvibratoryloadcanreducethemaximummainst

4、ressofsoilduringitsbreakage，vibratoryexcavationCanimprovetheforceofthebucketbladeandblocktheformationofcuttingCOreThen，eachfractionofcuttingresistancemathematicalmodelofhydraulicexcavatoriseduced，therelationshipbetweenea

5、chfractionofcuttingresistancemathematicalmodelandinstantaneousswingangleofbucketwhenthecuttingdepthis30cmandthecuttingobjectisadhesivesoilisresearchedbyusingofMATLAB，vibratoryloadCaneffectivelyreducethetotaldiggingresist

6、ancecomparestostatic10adiSvalidatedEachwayofvibratoryexcavationwhicharosedbyvibratoryfluxofbuckethydrauliccylinderthelimitationofrectanglewaveloadvibratoryexcavationispointedout，thecuttingmechanismofnormalload，sinewavevi

7、bratoryloadandtriangularwavevibratoryloadisanalyzed，thedisplacementequationandvelocityequationofthreeworkconditionsareeduced，thecriticalcuttingconditionofvibratoryexcavationisanalyzed，thecuttingtimeandcuttingdisplacement

8、ofonefrequencyiscalculated，theenergyconsumingmathematicalmodelofthreecuttingconditionsareeducedAtlastdetailedexperimentschemeiSdesignedandenergyconsumingtestexperimentisdoneonthebasisofenergyconsumingmodel111eexperimentr