硝酸四合一機(jī)組底座的結(jié)構(gòu)分析及優(yōu)化設(shè)計(jì).pdf

1、西南交通大學(xué)碩士學(xué)位論文硝酸四合一機(jī)組底座的結(jié)構(gòu)分析及優(yōu)化設(shè)計(jì)姓名：代晉申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：黃松和20100401西南交通大學(xué)碩士研究生學(xué)位論文第1I頁(yè)AbstractThenitricacid4in1unitisacombinationofthesteamturbine，nitricoxidecompressors，axialcompressorsandexpandingmachineAsthemainsu

2、pportstructureofthenitricacid4in1unitthebaseisrequiredwithbigstructuresize，andhighlysecurityperformanceWiththeUsingofthecomputeraidedengineeringanalysis(CAE)technologyinthestructuraldesignprocess，itCananalysethestaticstr

3、ength，stiffnessandvibrationofthebaseofthenitricacid4in1unitquicklyandaccurately，SOastofacilitatetheoptimizationofthestructuraldesignThepaperbythestudyofthenitricacid4in1unit’Sbase，州tlltheoryguidanceofthefiniteelementmeth

4、od，structuralmechanics，dynamicsandSOon，bymeansofANSYSsoftwarebuildsaparametricalfiniteelementmodelinaccordance、加也thestructuralcharacteristicsandtheactualworkingconditionsofthebaseThenthestaticanalysisanddynamicanalysisin

5、cludingmodalanalysisandharmonicresponseanalysis，arecarriedoutonthemodelrespectivelyThestaticstrengthandstiffnessvaluesareknownthroughthestaticanalysis，whilethenaturalfrequenciesandcorrespondingvibrationmodeareknownthroug

6、hthemodalanalysis，furthermore，theharmonicresponseanalysisiscontinuedonthisbaseThroughthisprocess，wecangetthedisplacementresponseofnodesunderdifferentfiequencydisturbancesEachanalysisresultisextractedinordertopr印arefordyn

7、amicoptimumdesignoptimumdesignofthenitricacid4in1unit’SbasebasedondynamiccharacteristicisaccomplishedbyfiniteelementanalysissoftwareANSYSWiththetotaldisplacementofsideplatenodesandhilghlowcoverplatenodesasdynamicoptimiza

8、tionobjectivesrespectivelythethicknessofthemainplateofthetopbeamasvariable，andthestaticstrengthasconstraintadynamicoptimizationmodelofthebaseissetupAfteroptimizationanalysis，optimumdesignprogramswhichhavedifferentoptimiz

9、ationobjectivesarecompared，inordertoputforwardadesignprogramofthenitricacid4in1unit’Sbase、析tlllighterweightandhighperformancestaticanddynamiccharacteristicsKeywords：Thenitricacid4in1unit，ANSYS，F(xiàn)initeelementmethod，Dynamic