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ID:33109256
大小:10.07 MB
页数:86页
时间:2019-02-20
《自由曲面空间网格结构的形态学分析-(6143)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、万方数据东南大学硕士学位论文11}血旧ly,becauseofthecomplexstressstateoffreeformsurfacespatialgrids勃nlctures.thereexistspressure.tensionandbendingstateatthesametimeandtherangeislarge.Itsstableperformancediffersfromtraditionalspatialstructuressuchasballshells.cylindricalshellsandSOon.Inviewofthi
2、scondition,thisPaperstudiedthestabilityoffreefoDnsurfacesingle.1ayerlatticedshellsintheprocessofstructuralmorphogenesisandfreeforillsurfacesingle.1ayerlatticedshellsWhichcontainthreekindsofstresscharacteristics.Itsbucklinganalysisconsideredgeometryandmaterialnonlinearconsidera
3、tionandtheinitialdefectsofdifferentdegrees.Researchshowsthatthebucklingloadwillbegreatlyimprovedandthepostbucklingperformancewillchange;Inaddition,thepostbucklingperformanceofthefreeformsingle.1ayerlatticedshellswiththreedifferenttypesisalsodifferent.Themainreasonisthatthearea
4、andpositionoftension,compressionandbendingofthethreefreeforillsingle.1ayerlatticedshellsisdifferent.Forthly,consideredthatthefreefoi/nsurfaceiscomplexandchangeableandthechangeofsupportingconditiononthes仃ucturehasaninfluenceonthestructuralbchavior,thisPaperstudysthesupports’pos
5、itionandthenumberofsupportsons仃1Jcnlralbehaviorspreliminarily;throughⅣU口LABprogramwrittenbymyself,thispaperputforwardthe“searchposition'’methodwhichconsideredthenumberandpositionofthesupportsunderthepredeterminedtargetofsnllctLlres’mechanicalproperties.KeyWords:Non-UniformRati
6、onalB—Spline,spatialgridstlllc饥lres,geneticalgorithm,s臼mctlⅡ-almorphogenesis.multi·objectiveoptimization,stableperformance万方数据目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..IABSTRACT⋯⋯⋯⋯⋯⋯⋯.⋯......⋯⋯⋯....⋯⋯⋯...⋯⋯III第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯.⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..11.1自由曲面空间网格结构⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.2结构形态学⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
7、⋯⋯⋯⋯⋯⋯⋯⋯.21.2.1结构形态学的概念⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.21.2.2结构形态学的发展⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.31.3自由曲面空间网格结构形态创构方法的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..51.4主要研究内容及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..81.4.1主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..81.4.2研究目的和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯8参考文献⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.9第二章自由曲面空间网格结构形态创建基础理论⋯⋯⋯⋯⋯⋯⋯⋯⋯.1l2.1概述⋯⋯⋯
8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1l2.2非均匀有理B样条(麟)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.1l2.2.1B
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