轴向柱塞马达配流盘的强度有限元分析

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1、西南交通大学硕士学位论文轴向柱塞马达配流盘的强度有限元分析姓名：石金艳申请学位级别：硕士专业：驱动技术与智能系统指导教师：王国志20090401西南交通大学硕士研究生学位论文第1I页AbstractCurrently,hydraulictechnologyisdevelopedalongthedominantdirections：highpressure，hi曲speed,highflow，highpower,lownoise，highreliabilityandhighintegration，andhavingobtainedsignifican

2、tdevelopment．Hydraulicmotorisanimportanthydrauliccomponentinhydrauliccontrolsystem．Theportplate／cylinderblockfrictionpairisoneofthemostimportantfrictionalpairsinaxialpistonmotor,anditiseasiesttobewornout．Soresearchingforstrengthofportplateissignificanttodesignexcellentperforma

3、nceaxialpistonmotorhavinghi曲pressure，highrotatingspeedandhighflowcharacteristics．Inthepaper,portplateofaxialpistonmotoristhemainresearchingobject．Thefiniteelementanalysismodelofportplateisestablished，andthestrengthofportplateiscalculatedbythefiniteelementsoftwareANSYS．Bytheres

4、ultsoftheanalysis，thestrengthdistributionCanbegiven．Atlast，theheatstressoftheportplateiscalculated，andtheeffectoftemperatureonthestrengthofportplateisdiscussed．Theresearchresultsareasfollows：1．Theribbedslaboftheportplatehasgreatimpactonthestrengthofportplate．Whiledesigningthep

5、ortplate，itneedstochoosetherationalnumberofribbedslabandthebreadthofit．2．Indifferentpositioningways，thestrengthofportplateisdifferent．Soitneedstochoosearationalpositioningway,whichisbasedonactualworkconditionandthestructureofportplate．3．Inacycleoftherotationofcylinder,thestres

6、sofportplateismainlydistributedathigh—pressurekidneyslot．Themaximalstressisattherootofreliefgroove，andthemaximalstrainisattheoutsideofhigh-pressurekidneyslot．Thestrainismainlydistributedattheradialdirectionoftheportplate．Themaximalaxialdeformationisatthesurfaceofribbedslabofpo

7、rtplateinthehigh-pressurezone．Theleakageflowofportplatepairsissmall，whichhaslittleimpactonthevolumetricefficiencyofthemotor．Thefluctuantrangeofthemaximalstressandstrainissmall．Themaincauseofstressandstrainisworkingpressure．While西南交通大学硕士研究生学位论文第1II页designingtheportplate，itneeds

8、tochoosethecorrelativesizeofportplatebasedonconcretecondition