| 大型水电站垫层蜗壳结构接触分析 |
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| 引用本文： | 申艳,伍鹤皋,蒋逵超. 大型水电站垫层蜗壳结构接触分析[J]. 水力发电学报, 2006, 25(5): 74-78 |
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| 作者姓名： | 申艳 伍鹤皋 蒋逵超 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 摘 要： | 工程中有许多不同材料组成的结构,对于这类复合结构,接触面采用共结点的处理方法得到的应力是欠准确的。本文采用一种新的不同材料交界面的接触单元,对蜗壳与垫层及外围混凝土之间按考虑接触单元与不考虑接触单元两种方案的厂房蜗壳结构进行了有限元计算,并对计算结果进行了比较分析,验证了考虑接触单元模型的合理性。
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| 关 键 词： | 水工结构 接触分析 非线性有限元 水电站厂房 垫层蜗壳 |
| 收稿时间： | 2005-05-12 |
| 修稿时间： | 2005-05-12 |
Analysis of contact on spiral case with cushion layers of large hydropower station |
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| SHEN Yan,WU Hegao,JIANG Kuichao. Analysis of contact on spiral case with cushion layers of large hydropower station[J]. Journal of Hydroelectric Engineering, 2006, 25(5): 74-78 |
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| Authors: | SHEN Yan WU Hegao JIANG Kuichao |
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| Affiliation: | State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072 |
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| Abstract: | There are plenty of structures made of different materials.To this kind of structures,the stresses computed by the method which uses common nodes on interface are short of accuracy.In this paper,a new type of contact element on the interface of different materials is used so as to study and compare the effects on stresses of spiral case and surrounding concrete.Two cases of nonlinear FEM contact computation as well as the FEM computation without contact taking into account are carried out.The results verify the rationality of the contact model. |
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| Keywords: | hydraulic structure contact analysis nonlinear FEM hydropower plant spiral case with cushion layer |
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