| 大型水电站地下厂房结构动力特性研究 |
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| 引用本文： | 徐进友,刘建平,宋轶民,王世宇.大型水电站地下厂房结构动力特性研究[J].水电能源科学,2009,27(5). |
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| 作者姓名： | 徐进友 刘建平 宋轶民 王世宇 |
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| 作者单位： | 天津大学,机械工程学院,天津,300072 |
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| 摘 要： | 以某在建大型水电站地下厂房结构为例,建立了地下厂房结构的三维有限元计算模型,全面分析了不同的边界条件、风罩形式、材料下的机组支承结构的自振特性并进行了共振校核,采用谐响应法计算结构的动态响应,对最大振幅进行了校核。结果表明,该模型为地下厂房结构的优化设计、改进抗振特性及确保机组安全运行提供了理论依据。
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| 关 键 词： | 地下厂房 动力特性 三维有限元法 谐响应法 |
Study on Dynamic Characteristics of Underground Powerhouse Structure of Large Hydropower Station |
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| XU Jinyou LIU Jianping SONG Yimin WANG Shiyu.Study on Dynamic Characteristics of Underground Powerhouse Structure of Large Hydropower Station[J].International Journal Hydroelectric Energy,2009,27(5). |
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| Authors: | XU Jinyou LIU Jianping SONG Yimin WANG Shiyu |
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| Affiliation: | School of Mechanical Engineering;Tianjin University;Tianjin 300072;China |
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| Abstract: | Based on under-construction underground powerhouse structure of a certain large hydropower station,dynamic characteristics of powerhouse unit structure are analyzed.3D finite element models of underground powerhouse structure are constructed.Natural vibration characteristics of generating unit support structure are analyzed comprehensively and the structure resonance vibration is checked by considering effects of different boundary conditions,different wind tunnels and various materials.Dynamic responses of... |
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| Keywords: | underground powerhouse dynamic characteristics 3D-FEM harmonic response method |
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