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| 带肋圆柱壳结构强度灵敏性有限元法分析 | |
| 引用本文： | 赵华玮,朱宏平,张伟.带肋圆柱壳结构强度灵敏性有限元法分析[J].河南大学学报(自然科学版),2009,39(4). |
| 作者姓名： | 赵华玮 朱宏平 张伟 |
| 作者单位： | 1. 华中科技大学,土木工程与力学学院,控制结构湖北省重点实验室,武汉,430074;焦作大学,土木建筑工程学院,河南,焦作,454000 2. 华中科技大学,土木工程与力学学院,控制结构湖北省重点实验室,武汉,430074 3. 河南科技大学,建筑工程,学院,河南,洛阳,471003 |
| 摘 要： | 采用基于有限元法的不确定性灵敏性分析方法对带肋圆柱壳结构强度的灵敏性进行分析研究.通过比较概率灵敏度图、散点图以及相关系数的计算结果,认为壳板厚度,均匀外压、肋间距、内径为影响带肋圆柱壳结构强度的灵敏性因素,其他因素为非灵敏性因素.因此,在对带肋圆柱壳结构进行可靠性分析与设计时,可以选择这4个变量为随机变量,其他变量作为定值处理,以减少随机变量的数目,提高分析效率. |
| 关 键 词： | 带肋圆柱壳 强度 有限元法 灵敏性 |
The Strength Sensitivity Analysis of Ribbed Cylindrical Shell Construction Based on the Finite Element Method |
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| ZHAO Hua-wei,ZHU Hong-ping,ZHANG Wei.The Strength Sensitivity Analysis of Ribbed Cylindrical Shell Construction Based on the Finite Element Method[J].Journal of Henan University(Natural Science),2009,39(4). | |
| Authors: | ZHAO Hua-wei ZHU Hong-ping ZHANG Wei |
| Institution: | 1.School of Civil Engineering and Mechanics;Hubei Key Laboratory of Control Structure;Huazhong University of Science & Technology;Wuhan 430074;China;2.School of Civil Engineering;Jiaozuo University;Henan Jiaozuo 454000;3.Architectural Engineering College of Henan University of Science and Technology;Henan Luoyang 471003;China |
| Abstract: | By the method of random sensitivity analysis on the basis of FEM(Finite Element Method),this paper analyzes sensitivity factors about cylinder shell with strengthened-frames.By the analyses of probability sensitivity,this paper shows that shell thickness,external pressure,frame spacing and internal radius are more sensitivity than the other variables.These researches are useful for the probability analysis,design and use of cylinder structure. |
| Keywords: | ribbed cylindrical shell strength finite element method sensitivity |
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