自由曲面空间网格结构的形态学分析-(6143)

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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⋯⋯⋯

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