力学大会2015集基于界面位移控制的改进频响子结构方法

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2EI本文的各种算例均采用四边形四节点膜单元，弹性模量为2.11011Nm2，泊松比 1，林家浩.结构动力学基础.大连：大连理工大学Ren.Y,.BeardsC.F.OnSubstructureSynthesiswithFRFData.JournslofSoundandVibration,1995,185(5):845-866..董兴建 .4 ，.运载火箭结构动力分析的一些新技术.与航天运载技术，2001年，卷4，页5，.考虑界面转动自由度的频域子结构法.振动工程学报.2011,24(3):323-ImergunM,RobbDA,EwinsDJ.StructuralModificationandCouplingDynamicysisUsingMeasuredFRFData.In:Proceedingsofthe4thInternationalModalysisConference.London,1987-JetmundersonB,BielawaRL,FlannellyR.Generalizedfrequencysubstructuresynthesis.JournaloftheAmericanHelicopterSociety.1988,33(1):55-64.Ren.Yand,Beards.C.F.Ageneralisedreceptancecouplingtechnique.In:Proceedingsofthe11thInternationalModalysisConference,Florida,1993-868～871.LiuW,EwinsDJ.Substructuresynthesisviaelasticmedia.JournalofSoundand10，进.考虑连接特性的子结构频响综合方法及实现.中国机械工程11OtteD,LeuridanJ,VisD,GrangierHandAquilinaR.CouplingofstructuresusingFRFsbymeansofSVDbaseddatareductiontechniques.In:Proceedingsofthe8thInternationalModalysisConference.Florida,1990-213～220. ROTATION,MIRRORINGANDMULTI-POINTCONSTRAINTSBASEDONTHESUBSTRUCTUREFRFSYNTHESISZhang Liu Yin ChenInmanycomplexengineeringstructures,eachsub-structure’frequencyresponsefunction(FRF)isoftendonebydifferentdepartments,theFRFmaybeassociatedwithdifferentcoordinate,wehavetorotateandmirroreachsub-structure,FRFbeforecoupling.Sometimes,duetothesymmetryofmanyengineeringstructures,youcangetasubstructureofwhichFRFthroughexperimentsorcomputersimulations,andgetothersubstructures,FRFbyrotatingormirroringtransformation,thencoupling,thiscangreatlyimprovetheefficiencyofsuchstructures.Whencouplingsubstructures,themeshesofthesesubstructuresarelikelytobe attheirinterfaces,andtheseinterfacesneedtobeprocessedtoensurethedeformationcompatibility.WepresentedanewmethodofrotationandmirroringbasedonTHESUBSTRUCTUREFRFSYNTHESIS,andprovidedamethodofmulti-pointconstraintss