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一、建模 建模原則Modeling 部件單元Parts 有限元模型Finiteelement 位置示意圖Thepositionof 計(jì)算內(nèi)容Calculate 二、工況說明與邊界條件WorkingandBoundary CB20吊裝工況CasesofCB20 邊界條件Boundary 模型載荷Model 三、計(jì)算結(jié)果Calculating 工況1 工況說明CaseEx 邊界條件Boundary 計(jì)算結(jié)果Calculating 工況2 工況說明CaseEx 邊界條件Boundary 計(jì)算結(jié)果Calculating 工況3 工況說明CaseEx 邊界條件Boundary 計(jì)算結(jié)果Calculating 工況4 工況說明CaseEx 邊界條件Boundary 計(jì)算結(jié)果Calculating 四、強(qiáng)度校核Strength CB20材料 五、結(jié)論 六、參考文獻(xiàn) ModelingWeldbystructuraljoinIgnorethesmallBoardneutrallayerandtheactualstructureoftheneutrallayeroverlap CB20:s 具:桿單元Rigging:linkFiniteelement1.1CB20有限元模型Figure1.1CB20finiteelementThepositionof圖1.2位置示意圖/Figure1.2ThepositionofCalculate線性結(jié)構(gòu)受力計(jì)算Calculationoflinear LinearCB20CasesofCB202.1CB20吊裝的四種工況Table2.1FourcasesofCB20CaseConstraints:X,YandZdiscementDOFatthetopoflocksetsineachModelwindspeed

vw10.8m/windp0.625vs20.62510.8272.9N/m2(GB/T3811-風(fēng)載 FPA72.910.292212.967風(fēng)力加速度accelerationof :am

302

0.065m/accelerationofgravityg9.81mK11.1—?jiǎng)虞d系數(shù),Dynamicfactor.consult:NB/T20022-20105.2.2.1K21.1—吊點(diǎn)不均衡系數(shù),Liftingpointunbalancedfactor.參見三、CalculatingAccordingtothemodel,boundaryconditionandcalculatingload,finiteysisthefourliftingcasesofthis工況說明CaseEx1CB20內(nèi)側(cè)索具與水平方向成78,外側(cè)索具與水平方向成60Case1:Includedanglebetweenrigginginsideandhorizontaldirectionis78riggingoutsideandhorizontaldirectionisConstraints:X,YandZdiscementDOFatthetopof :風(fēng)力加速度accelerationofaccelerationofCalculatingTheresultsshowninFig.3.1.1—Fig.3.1.3.Stressanddiscementdatashownintable3.1.1,3.1.2.工況3.1.1/Figure3.1.2/Figure3.1.2CB20穩(wěn)定性/Table3.1.2CB20BucklingFirstSecondThirdLocalLocalLocal3.1.11Figure3.1.1Case1:Stressdiagramofoverall圖3.1.2工況1整移云Figure Case1:DiscementdiagramofoverallFigure3.1.3Case1:Firstorderdestabilization工況說明CaseEx2CB20內(nèi)側(cè)索具與水平方向成82,外側(cè)索具與水平方向成70Case2:Includedanglebetweenrigginginsideandhorizontaldirectionis82,riggingoutsideandhorizontaldirectionis70.Constraints:X,YandZdiscementDOFatthetopof :風(fēng)力加速度accelerationofaccelerationofCalculatingTheresultsshowninFig.3.2.1—Fig.3.2.3.Stressanddiscementdatashownintable3.2.1,3.2.2.工況3.2.1/Figure3.2.2/Figure3.22CB20穩(wěn)定性/Table3.22CB20CaseBucklingFirstSecondThirdLocalLocalLocal3.2.12Figure3.2.1Case2:Stressdiagramofoverall圖3.2.2工況2整移云Figure3.2.2Case2:DiscementdiagramofoverallFig.3.2.3Case2:Firstorderdestabilization3CB20內(nèi)側(cè)索具與水平方向成60,外側(cè)索具與水平方向成60Case2:Includedanglebetweenrigginginsideandhorizontaldirectionis60,riggingoutsideandhorizontaldirectionis60.Constraints:X,YandZdiscementDOFatthetopof力:風(fēng)力加速度accelerationofwindaccelerationofCalculatingTheresultsshowninFig.3.3.1—Fig.3.3.3.Stressanddiscementdatashownintable3.3.1,3.3.2.工況3.3.1/Figure3.3.2/Figure3.3.2CB20穩(wěn)定性/Table3.3.2CB20CaseBucklingFirstSecondThirdLocalLocalLocal3.3.13Figure3.3.1Case3:StressdiagramofoverallFigure3.3.2Case3:Discementdiagramofoverall3.3.334CB20內(nèi)側(cè)索具與水平方向成90,外側(cè)索具與水平方向成90Case2:Includedanglebetweenrigginginsideandhorizontaldirectionis90,riggingoutsideandhorizontaldirectionis90.Constraints:X,YandZdiscementDOFatthetopof :風(fēng)力加速度accelerationofaccelerationofCalculatingTheresultsshowninFig.3.4.1—Fig.3.4.3.Stressanddiscementdatashownintable3.4.1,3.4.2.工況3.4.1/Figure3.4.2/Figure3.4.2CB20穩(wěn)定性/Table3.4.2CB20CaseBucklingFirstSecondThirdLocalLocalLocal3.4.14Figure3.4.1Case4:Stressdiagramofoverall3.4.24Figure3.4.2Case4:Discementdiagramofoverall3.4.34Fig.3.4.3Case4:FirstorderdestabilizationAccordingtothecalculatingresultsabove,thebiggeststressofCB20appearsincase1,socheckcase1only.CB20材料參見表 Materialshownintable4CB20材料Table4CB20屈服強(qiáng)度syieldstrengths抗拉強(qiáng)度btensilestrengthbA240A240A234GRA53GRA240A276CB20A240TP304LA276TP304L的構(gòu)件為槽鋼,其最大449.138MPaA240TP304LA276TP304L屈服強(qiáng)度170MPa,抗拉強(qiáng)度485MPas1700.35 根據(jù)GB/T3811-2008《起重機(jī)設(shè)計(jì)規(guī)范》5.3.1.2.1n

170114MPaThememberwhosematerialisA240TP304LandA276TP304LinCB20ischannel,itsbiggeststressis49.138MPaandshowninfigure4.A240TP304LandA276TP304Lyieldstrengths170MPa,tensileb485MPa,ass1700.35,lesstan0.7,thebasicallowablestress,b n

170114MPa,biggertanthebiggeststressofthemember,meet 屈服強(qiáng)度240MPa,抗拉強(qiáng)度415MPas2400.580.7, 根據(jù)GB/T3811-2008《起重機(jī)設(shè)計(jì)規(guī)范》5.3.1.2.1n

240162MPaExceptforA240TP304LandA276TP304LofCB20material,intensityofA53 s 415MPa,ass2400.58,lesstan0.7,thebasicallowablestress,b b n

240162MPa,biggertanthebiggeststressofthemodel,41整體應(yīng)力云圖/Figure4Case1:StressdiagramofoverallAllthebiggeststressanddiscementofthe4casescanmeetrequirement.Amongthem,thebiggeststressappearsincase1andthesmallestincase4,thebiggestdiscementappearsincase3andthesmallestincase4,sothemodelstressisthebestincase4.NB20022-2010thehoistingtechnicalspecificationfordomeofreactorbuildingofPWRnuclearpowernt. Beijing:atomicenergypress,2010GB/T

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