橋式抓斗卸船機(jī)起升機(jī)構(gòu)動力響應(yīng)的仿真研究.pdf

1、上海海事大學(xué)碩士學(xué)位論文橋式抓斗卸船機(jī)起升機(jī)構(gòu)動力響應(yīng)的仿真研究姓名：李路妹申請學(xué)位級別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：王悅民20060701ABSTRACTToday晷abshipunloaderismostlyportmachinetoloadandunloadbulkcargointheworldGrabshipunloaderislargescaleandhighspeedofdevelopmentWithincreasing

2、ofliftingweightandnmningvelocity，therearehigherrequirementsforthemechanismperformanceofmachineTherearestillalargenumberofaccidentstohappeninthecourseofactualuseof鏟abshipunloaderwhichisdesignedbasedonthetraditionaldesigne

3、dmethodsMostofseriousaccidentsduetothefallofliftedloadaredirectlyrelatedtotheSecuritysituationofhoistingmechanismandtheirpartsandcomponentsPeoplearemoreandmoreconcernedaboutthedynamicdesignofmechanisminordertosolverthebo

4、ttleneckproblemofthetraditionaldesignedmethodsUptothepresent，researchofunloaderdynamiccharacteristicsisstilloninitialstepTllistime，weareentrustedbyNingboBeilunport，forexploringasimulationanalysismethodwhichCallforecastan

5、devaluatethedynamiccharacteristicsofthehoistingmechanismofunloadertoinstructpracticaldesign，aimingatimprovingthemechanicalcharacteristic(design，rigidityandfatiguelifeetc)andeconomiccharacteristic111ispaperconsidersthetes

6、tbedofmechanismofshanghaimaritimeuniversityasaresearchobjectThedynamicsmodelanddifferentialcoefficientequationsareestablishedBasedonpresentationofvirtualprototypetechnologythedynamicsvirtualmodelisbuiltandthefourdynamicp

7、rocesses(hoistingfromground，speedupfromairemergencybrakeafteruniformvelocityriseandemergencybrakeafteruniformvelocitydrop)aresimulatedbyusingADAMSsoftwareThevirtualmodelandsimulationresultsarevalidatedbycomparingwithtest

8、curveResearchofunloaderdynamiccharacteristicswillbefarthercarriedoutonthismethodBasedonthemodelofthetestbedofmechanism，consideringtheelasticstiffnessofstructureofgrabshipunloaderarigidflexcouplingemulationalmodelofhoisti

9、ngmechanismsystemisbuiltbyusingADAMSandANSYSsoftwaresanddynamicssimulationiscalculatedTheinfluenceofhoistingmechanismduetoelasticeffectsofthestructureofunloaderiSdiscussedAllresultsCanbeinsultedfordynamicsanalysisanddesi