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抛物线型零件固体颗粒介质成形变形理论研究(英文) ResearchonDeformationTheoryofParabolicShapedPartsMadeofSolidParticleMedia Abstract: Thispaperaimstoinvestigatethedeformationofparabolicshapedpartsmadeofsolidparticlemediaduringtheformingprocess.Athoroughtheoreticalstudyhasbeenconductedtounderstandthedeformationbehaviorandcharacteristicsoftheparabolicshapedparts.Theresultsindicatethatthedeformationbehaviorofparabolicshapedpartsisdifferentfromthatofothershapesduetothepeculiarcurvatureofthepart.Thestudycanhelpresearchersinunderstandingthevitalfactorsthatcausedeformationinparabolicshapedpartsandcanprovideatheoreticalbasisforimprovingthequalityofparabolicshapedpartsbyoptimizingtheformingprocess. Introduction: Asaspecialtypeofcomponent,parabolicshapedpartsareincreasinglyindemandintheindustry,especiallyinthefieldofaviation,aerospace,andshipbuilding.Thereasonwhytheparabolicshapeiswidelyusedisthatitisofparticularimportanceindirectingtheenergyofintendedapplication,e.g.,soundwaves,lightwaves,electromagneticwaves,etc.Therefore,itiscriticaltostudythedeformationcharacteristicsofparabolicshapedpartstoimprovethequalityofsuchparts.Particlemediaformingtechnologyhasawiderangeofapplicationsintheformingofcomplex-shapedparts,especiallyforparabolicshapedparts.However,determiningthedeformationcharacteristicsofparabolicshapedpartsisstillachallenge. TheoreticalStudy: Inthispaper,thetheoreticalstudyonthedeformationbehaviorofparabolicshapedpartsmadeofparticlemediahasbeenconducted.Intheinitialstageoftheformingprocess,thesolidparticlesinthemediaarepackedcloselytogetherandbecomedenserastheformingpressureincreases.Becauseofthepeculiarcurvatureoftheparabolicshape,therearevaryinglevelsofstressandstrainpresent,whichmakesitchallengingtopredictthedeformationofsuchparts. Tobetterunderstandthedeformationbehaviorofparabolicshapedparts,athree-dimensionalmathematicalmodelwasdeveloped.Thepressuredistribution,stressdistribution,andstraindistributionwereanalyzed,andthedeformationbehavioroftheparabolicshapedpartwasstudied.Itwasobservedt