| 柘林水电站消能掺气墩的原型振动试验与动力响应计算 |
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| 引用本文： | 郭天德,刘洪兵.柘林水电站消能掺气墩的原型振动试验与动力响应计算[J].西安理工大学学报,1986(1). |
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| 作者姓名： | 郭天德 刘洪兵 |
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| 作者单位： | 陕西机械学院水利水电工程系，陕西机械学院水利水电工程系 |
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| 摘 要： | 消能掺气墩是新型消能结构,已成功地应用于江西柘林水电站泄洪建筑物之中。为了对消能掺气墩的动力特性作出评价,本文按三维有限元法,采用SAP-5动力分析程序,计算了该结构的前15阶固有频率与振型,并进行了原型振动试验,用共振峰值法测出了结构的八阶固有频率。测试了泄洪水流冲击作用下结构的动态位移、加速度响应,又根据水流脉动压力观测资料,加以分析整理,输入到SAP-5程序之中,按振型迭加法计算了结构的位移响应及动应力历程。校核了结构的疲劳强度。
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| 关 键 词： | 消能墩 原型振动试验 振型迭加法 动力响应 固有频率 |
THE PROTOTYPE VIBRATION TEST AND DYNAMIC RESPONSE CALCULATION OF ENERGY-REALEASE PIERS |
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| Guo Tiande Liu Hongbin.THE PROTOTYPE VIBRATION TEST AND DYNAMIC RESPONSE CALCULATION OF ENERGY-REALEASE PIERS[J].Journal of Xi'an University of Technology,1986(1). |
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| Authors: | Guo Tiande Liu Hongbin |
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| Institution: | Guo Tiande Liu Hongbin |
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| Abstract: | As a new type energy releasing structure, the energy-release pier was successfully used in the flood-discharge construotion at Zhelin Hydroelectric Station (Jiang xi Province). To evaluate the dynamio characteristics of the energy-release piers, the first 15 vibrational modes of whioh are caloulated by using SAP-5 allowing 3-dimension finite element analysis. With resonant peak method, the first eight natural frequencies of the prototype energy-release pier and the impact responses of the flood discharge ourrent correlated with the dynamic displacement and acceleration are measured. After analysed and ordered the data of pulse of the ourrent observed, according to the modal superimposition method the displacement response and dynamic stress history are calculated. The fatigue strength of the structure is checked. |
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| Keywords: | Energy-release Pier Prototype Vibration Test ModalSuperimposition method Dynamic Respons Natural frequency |
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