adams初級(jí)培訓(xùn)教程solver

初級(jí)培訓(xùn)教初級(jí)培訓(xùn)教教程講解及練習(xí)MSC.Software公2010年11ADM701,Section1,November201019.0本章內(nèi)19.0本章內(nèi)容ADAMS/SolverADAMS/Solver中的文件ADAMS/Solver的獨(dú)立運(yùn)行例子：2DDebug/Eprint(動(dòng)力學(xué)●●●●●●●●ADM701,Section1,November2010ADAMS/SOLVER總.out.reqADAMS/SOLVER總.out.reqCommandADM701,Section1,November2010ADAMS/SOLVER中的文模型文件ADAMS/SOLVER中的文模型文件Statementsdefineanelementofamodelsuchasapart,constraint,force,andsoon.Functionsarenumericexpressionsthatdefinethemagnitudeofanelementsuchasaforceormotion.命令文件Commandsdefineanactionthatneedstobetakenduringasimulation.Seealso:ADAMS/SolverCommandsinSectionADM701,Section1,November2010ADAMS/SOLVER模型ADAMS/SOLVER模型文件(.adm)的例ADM701,Section1,November2010ADAMS/SOLVER獨(dú)立運(yùn)使用ADAMS/SOLVER獨(dú)立運(yùn)使用獨(dú)立運(yùn)行的(.acf)進(jìn)行仿的命令文件必須是以要分析的模型STOPADM701,Section1,November2010MSC.ADAMS2003MSC.ADAMS2003開始，新的ADAMS/Solver(C++)版本增加了一些新功能，這樣的話，新的ADAMS/Solver(C++)版本支持一些原來的ADAMS/Solver(FORTRAN)版本所不支持的功能。是在使用ADAMS/View時(shí)，每當(dāng)新增加一個(gè)對(duì)象時(shí)，就要進(jìn)行一次的兼容性檢查此項(xiàng)檢查在下列情形下也要進(jìn)行ADM701,Section1,November2010例子2D描例子2D描模型方程：Euler-坐標(biāo)系的X-Y平面內(nèi)相對(duì)坐標(biāo)原點(diǎn)轉(zhuǎn)動(dòng)。。ADM701,Section1,November2010例子2D例子2DPENDULUM續(xù)ADM701,Section1,November2010例子2DPENDULUM續(xù)Forcebalance例子2DPENDULUM續(xù)ForcebalanceMomentaequations(onlyinKinematicdifferentialConstraintADM701,Section1,November2010動(dòng)力學(xué)方–9個(gè)微分代數(shù)方程動(dòng)力學(xué)方–9個(gè)微分代數(shù)方程非線性系EquationsofForceADM701,Section1,November2010解算的各個(gè)步解算的各個(gè)步任兩個(gè)主要部分Predictor解算的各個(gè)步驟(解算的各個(gè)步驟(續(xù)任刻的解的值，此值不能保證滿足方程G。,Nov解算的各個(gè)步驟(續(xù)任解算的各個(gè)步驟(續(xù)任●●驟3。使用Newton-ADM701,Section1,November2010解算的各個(gè)步驟解算的各個(gè)步驟(續(xù)Asafirstguess,setADM701,Section1,November2010解算的各個(gè)步驟(續(xù)解算的各個(gè)步驟(續(xù)任2解算的各個(gè)步解算的各個(gè)步驟(續(xù)ThedifferencebetweenthecurrentsolutionandthetruesolutionTheerrorintroducedinasingleADM701,Section1,November2010解算的各解算的各個(gè)步驟(續(xù)任ADM701,Section1,November2010TimeatbeginningofRunningcountofTimeatbeginningofRunningcountofsuccessful(動(dòng)力學(xué)仿真2.Orderofpredicting 每個(gè)積分步包含兩小步Thestepnumber-ArunningcountofthenumberofstepstakenandcanbeusedasameasureofhowhardADAMS/SolverisTheorderofthepredictorfordynamics-CorrespondstotheorderofthepolynomialADAMS/Solverusestopredictthesolutionattheendoftheintegrationstep.ThevalueoftimeatthebeginningoftheThesizeoftheThecumulativenumberofiterations-ArunningcountoftheiterationsneededtosolvetheequationsofmotionandcanbeusedasameasureofhowmanycomputationsADAMS/Solverisperforming.Theiterationnumber-OneatthebeginningofeachstepandincrementsbyoneuntilADAMS/Solverconvergestoasolutionorexceedsthemaximumallowablenumberof●ADM701,Section1,November2010Absolutevalueoflargestequationresidual-ThisnumberisanindicatorofhowfarADAMS/Solverisfromasolution.ThisnumbershoulddecreaseaftereveryiterationinhealthyDatasetelementassociatedwith#7-Theequationthathasthelargestequationresidualerrorfortheabovedatasetelement.EquationassociatedwithADM701,Section1,November2010Absolutevalueoflargestchangeinavariable-Thefinaliterationshouldnotneedtochangevariablesverymuch.ThisnumberisanindicatorofhowfarADAMS/Solverneedstochangevariablestoapproachasolution.Ideally,thisnumbershoulddecreaseaftereveryiteration.Datasetelementassociatedwith#10.12.Variablewiththelargestchangefor#11.13.Jacobianupdates-IfADAMS/SolverupdatedtheJacobian,YESappearstheJacobiannew?ADM701,Section1,November2010問題描問題描MX-6ADM701,Section1,November2010模型描模型描ADM701,Section1,November2010開始練開始練目錄exercise_dir/mod_18_hatchback_2/completed下的文件hatchback_2_completed.cmd。ADM701,Section1,November2010輸出一個(gè)輸出一個(gè)的模型文件FileType:ADAMS/SolverDataFileName:ADM701,Section1,November20101.(UNIXvi1.(UNIXviJot；WindowsWordpad)ADAMS/Solver(.acfhatchback.adm(the.admextensionisDonotenterinSIMULATE/DYNAMIC,END=4,STEPS=40ACTIVATE/MOTION,id=1在獨(dú)立運(yùn)行狀在獨(dú)立運(yùn)行狀態(tài)下運(yùn)行要在獨(dú)立運(yùn)行狀態(tài)下運(yùn)行ADAMS/Solver，你將使用準(zhǔn)備運(yùn)ADM701,Section1,November2010UNIXUNIXUNIXUNIXshell并改變路徑到你當(dāng)2.ADAMS/SolverADM701,Section1,November2010要進(jìn)行仿真要進(jìn)行仿真adamsxx(其中xxru-s(運(yùn)行標(biāo)準(zhǔn)的ADM701,Section1,November2010adamsxxc(adamsxxc(xxadams12c顯示MSC.ADAMS程序菜單)ru-s(ADAMS/Solver可執(zhí)行程序exit(注意少errors和warnings。2.ADM701,Section1,November2010修改模型文修改模型文要修改剛度系數(shù)ADM701,Section1,November20103.hatchback2.admADAMS/SolverADAMS/Solver的命令文件要修改.acf文件ADM701,Section1,November2010在獨(dú)立運(yùn)行狀在獨(dú)立運(yùn)行狀態(tài)下再次運(yùn)行在中比較兩次仿真的結(jié)果要導(dǎo)入并比較結(jié)果.gra,FiletoRead:ModelName:ADM701,Section1,November雙擊模型hatchback的名字，確認(rèn)一下兩次仿真結(jié)果hatchback_test1hatchback_test2都存在，并為模型的ADM701,Section1,November2010研究一下兩次仿真的結(jié)果研究一下兩次仿真的結(jié)果Subtractonecurvef