三维编织复合材料高压储气瓶的屈曲分析与优化设计.pdf

183 2007 2 左惟炜 肖来元 廖道训 华中科技大学, 武汉,430074 :通过对三维编织复合材料圆柱壳进行屈曲和应力分析, 对三维编织复合材料高压储气瓶的临 界载荷强度和应力分布等进行了数值计算, 结果表明, 屈曲对三维编织复合材料高压储气瓶使用性能 的影响非常显著基于圆形四步法三维编织工艺及理论分析,提出了三维编织复合材料高压储气瓶的 结构优化设计数学模型算例表明, 该优化设计方法效果很好 : ;;; :O343.8;TB332 :1004) 132X(2007)03) 0286 ) 06 Buckling Analysis and OptimumDesign of 3D- Braided Composites CNGV 库 Zuo Weiwei XiaoLaiyuan Liao Daoxun HuazhongUniversityof ScienceandTechnology,Wuhan,430074 Abstract:Throughanalysisof bucklingandstressforacompositecylindricalshell, suchtechnique 例 targets as critical load, strength and stress distribution of 3D- braided composite cylindrical shells were calculated numerically. These results indicate that the effect of buckling on the 3D- braided 案 compositeCNGV isvery remarkable. Basedonthe4- step3D circularbraiding procedureandthethe- E oretical analysis mentionedabove, amathematic modelabout thestructural optimum design of 3D- A braidedCNGV was proposed. According tothis model, thecalculatedexampleshows better results. C Key words:3D- braidedcomposite;compressednaturalgasvase(CNGV);bucklinganalysis; opt-i mum design 模 0 引言 凯 , , O (compressed natural gas,CNG), [2] E (CNG vase, CNGV, , M ) CNG , A