軋機伺服液壓缸測試系統(tǒng)加載機架性能研究.pdf

1、武漢科技大學碩士學位論文軋機伺服液壓缸測試系統(tǒng)加載機架性能研究姓名：陳忱申請學位級別：碩士專業(yè)：機械電子工程指導教師：陳新元20090505第1I頁武漢科技大學碩士學位論文AbstractTheclosedtypeloadframeisapartofimportantcomponentoftheAGCrollingmillhydraulicserve—cylindertestingsystemTheframeisusedtoloadan

2、dassemblethehydraulicserve—cylinderaswellassomeothercomponentTheframeissupposedtohavesufficientintensityandrigidityandmakenoeffecttothetestingresultinthedynamictestoftherollingmillhydraulicserve—cylindertestingTherefore，

3、theloadframeisanalyzedbaseonfiniteelementmethodinthispaperAfterthemodeloftheclosed—typeframeisbuilt，thestressdistributionandthestraindistributionoftheframeareobtainedinthestaticperformanceresearchontheframethroughthesoft

4、wareANSYSTheeffectoftheframeinthedynamictestofthetestingsystemisobtainedinthedynamicperformanceresearchFirstlythegeometricmodelisbuiltbaseontheactualsizeaswellasthematerialcharacteristicsthroughthesoftwareSolidWorksandAN

5、SYS，andthenthefinite—elementmodelisgeneratedTheedgerestraintconditionisdefinedaccordingtotheloadontheframeSecondlythestressdistributionunderthemaxloadisobtainedinthestaticanalysisoftheframethroughANSYS，thevalueandtheposi

6、tionofthemaxstressareascertained；thedeformationinalldirectionsoftheframeisalsoobtained，theentirerigidityinlongitudinaldirectionoftheframeisascertainedFinallytheframeisanalyzedindynamictype，includingthemodalanalysis，harmo

7、nicanalysisandtransient，baseonthetestitemsoftestingsystemThenaturalfrequencyandthemodeshapesareobtainedinthemodalanalysis，SOastoeliminatethepossibilityoftheresonancevibrationoftheframe；thefrequencyresponsecharacteristico

8、ftheframeisobtainedSOastoascertainedtheeffectoftheframeinthesysteminthefrequencyresponsetest；thestepresponsecharacteristicandthereciprocatingdeformationcharacteristicoftheframeareobtained，SOastoascertainedtheeffectofthes

9、ystemfromtheframeinthestepresponsetestandthedynamicfrictiontestTheclosedtypeloadframeintherollingmillhydraulicservecylindertestingsystemisdeeplyanalyzedandemulatedinthispaperthestaticperformanceandthedynamicperformancear

10、eobtained，SOastoprovideabasistothereliabilityanalysisofthestaticperformancetogetherwiththedynamicperformanceresultoftherollingmillhydraulicservecylindertestingsystemKeyWords：rollingmillserve—cylindertesting；loadframe；fin