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1、1AboutAdams/SolverAboutAdams/Solver2Adams/SolverConventionsThroughoutthehelp,thefollowingtypestylesareusedasvisualcues.Style:Indicates:NameAstringthatisalegalnameforuseininterfaceproducts.Thefollowingcriteriamustbemetinorderforalegalstringtobedefined:•Thenamemayonlycontainalphanume
2、riccharacters(upperandlowercase).•Nowhitespaceinthename.•Nospecialcharactersinthename(e.g.@#$%^&*).Theexceptiontothisruleistheunderscore'_'character.•Namesmustbeginwithanalphacharacteroranunderscore.(e.g.4barisnotlegal,while_4barislegal).xArgumentsinAdamssubroutinesandfunctionsiPar
3、ametersthatfollowastatement,command,orargument:i=Integerr=Realc=Characterstring(alphanumeric)e=Functionexpressionv=Varyingtype(integer,real,oralphanumeric)id=Identifierx,y,z=Cartesiancoordinate(real)a,b,c=Angularcoordinate(real)PARTMinimumabbreviationsofstatements,commands,andargum
4、ents{}Selectionyoucanmakefromaseriesofitems[]Optionalselectionyoucanmakefromaseriesofitems[[]]CombinedselectionyoucanmakefromaseriesofitemsATwo-dimensionalmatricesaOne-dimensionalmatricesRVectors1xˆUnitvectors3AboutAdams/SolverBestPracticesThissectioncontainsgeneraltipsonadvancedmo
5、delingwithAdams/Solver.•Discontinuities•Units•DummyParts•Joints•Motions•Forces•Contacts•Subroutines•Simulation/Integrators•Debugging•MiscellaneousTipsDiscontinuities•Discontinuitiesaretherootcauseofmostsimulationproblems.Avoidthem.•Examplesofdiscontinuousfunctions:MIN,MAX,DIM,MOD,I
6、F.•Discontinuousdisplacementsandvelocitiescausecorrectorandintegratorfailures.•Discontinuousaccelerationscauseintegrationfailures(requiresinfiniteforce).•Discontinuousforcescausecorrectorfailures.Units•Widelyseparatedmagnitudesinamatrixcancausenumericdifficulties(conditioningproble
7、ms).•Becarefulwhenusinginconsistentunits.•Chooseunitssothatmodelstates(displacementsandvelocities)arereasonablevalues.Forexample,choosing"mm"fordisplacementsofarocketwhichtravelsthousandsofkilometersisapoorchoice.•Chooseunitssothatstiffnessvaluesarenotverylarge.•Choosetimeunitsappr
8、opriatetothephenomenabeing
