| 水轮机蜗壳不同埋设方式的座环受力特性研究 |
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| 引用本文： | 刘波,伍鹤皋,张启灵. 水轮机蜗壳不同埋设方式的座环受力特性研究[J]. 水力发电学报, 2011, 30(1): 126-131 |
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| 作者姓名： | 刘波 伍鹤皋 张启灵 |
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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： | 基于接触非线性理论,考虑蜗壳与垫层及外围混凝土的接触滑移,对三种典型埋设方式的蜗壳结构进行三维有限元仿真分析,主要研究座环结构的受力特性.计算结果表明,不同埋设方式下各构件承担的扭转力比例不同,钢管承担的扭转力比例在保压方案下最大,座环承担的扭转力比例在垫层方案下最大,混凝土承担的扭转力比例在直埋方案下最大.软垫层和预...
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| 关 键 词： | 水工结构 受力特性 有限元法 座环 蜗壳 埋设方式 |
Study on the mechanical characteristics of stay ring under different embedding of spiral case in concrete |
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| LIU Bo , WU Hegao , ZHANG Qiling. Study on the mechanical characteristics of stay ring under different embedding of spiral case in concrete[J]. Journal of Hydroelectric Engineering, 2011, 30(1): 126-131 |
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| Authors: | LIU Bo WU Hegao ZHANG Qiling |
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| Affiliation: | LIU Bo,WU Hegao,ZHANG Qiling(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072) |
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| Abstract: | This paper studies the mechanical characteristics of stay ring through a three-dimensional FEM analysis of spiral case structure that is embedded in concrete in three typical manners.The nonlinear contact theory is adopted to model the contact slippage between the spiral case and its surrounding concrete.The results show that the torsional force ratio(TFR) of each member of the structure is different in the three embedding schemes,the TFR of the steel pipe is the greatest in preloading filling scheme,the TF... |
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| Keywords: | hydraulic structure mechanical characteristic finite element method stay ring spiral case embedding type |
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