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gravity hollow dam
相关语句
  空腹重力坝
     The analyse of prestress-reinforced gravity hollow dam with fracture mechanics
     预应力加固技术应用于空腹重力坝中的断裂力学分析
短句来源
     The study of Gravity Hollow Dam with Fracture Mechanics
     空腹重力坝的断裂力学研究
短句来源
     The research of model characteristics of the gravity hollow dam by dynamic finite strip method
     空腹重力坝模态特性的动力有限条法研究
短句来源
     There is some certain reference to the gravity hollow dam applying prestressed technic.
     预应力加固技术可以很好地弥补空腹重力坝所存在的缺陷,对设计空腹重力坝有一定的参考价值。
短句来源
     The features of mode characteristics of the gravity hollow dam are analyzed through the calculation of a practical example.
     通过实际算例,分析了空腹重力坝模态特性的特征及其变化规律;
短句来源
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  相似匹配句对
     Stress Analysis of Hollow Gravity-Dams
     空心壩的应力分析
短句来源
     Optimal Design of Hollow Gravity Dam
     空腹重力坝的优化设计
短句来源
     The study of Gravity Hollow Dam with Fracture Mechanics
     空腹重力坝的断裂力学研究
短句来源
     Prototype Structure Analysis of Dahua Hollow Gravity Dam
     大化空腹重力坝段实际结构性态分析
短句来源
     Hollow Waveguides
     空芯光纤
短句来源
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In comparison with the finite element method generally used the finite strip method has the advantages of less degrees of freedom less computer storage and less time of computation. In this paper, the finite strip meth -od in combination with the zero module method and fragment intergra-tion is firstly applied to the analysis of mode characteristics of the gravity hollow dam. The mode function of cantilever beam is selected as displacement function of junction lines. Element stiffness matrix mass and freguency...

In comparison with the finite element method generally used the finite strip method has the advantages of less degrees of freedom less computer storage and less time of computation. In this paper, the finite strip meth -od in combination with the zero module method and fragment intergra-tion is firstly applied to the analysis of mode characteristics of the gravity hollow dam. The mode function of cantilever beam is selected as displacement function of junction lines. Element stiffness matrix mass and freguency equation are derived for sfrips with different heights. The influ -ence of the large cavity in dam body and of the upper pier structures on the mode characteristics of dam is solved. The features of mode characteristics of the gravity hollow dam are analyzed through the calculation of a practical example. The theoretical solutions are coincident with the results obtained from holographic interferometry model test.

有限条法与目前常用的有限元法相比,具有自由度少、节约机时和内存的优点。本文首次将该法与零模量法和分段积分法相结合,应用于空腹重力坝溢流坝段的模态分析;选择悬臂梁振型函数作为结线位移函数,导出了不等高条的有限条单元刚度、质量矩阵和相应的频率方程;解决了坝内大形孔洞及其上部闸墩结构的影响问题;通过实际算例,分析了空腹重力坝模态特性的特征及其变化规律;理论分析结果与激光全息实验结果基本符合。

It is believed that the fracture mechacics should be used to research the gravity hollow dam by the analysis and computation of the stress of the dam heel. The effect of the shape,the area and the place of the hollow on the dam heel stress intensity by finite element ways on the basis of the fracture mechanics.The optimum section of the hollow dam is studied and can be an important reference to the design of the gravity hollow dams.

通过分析空腹重力坝坝踵应力的奇异性,提出采用断裂力学理论对空腹重力坝进行研究.用有限元法分析了空腹重力坝的腹孔面积、腹孔位置和腹孔形状对坝踵裂缝尖端应力强度因子的影响,得出了空腹重力坝的最优断面,对空腹重力坝的设计有重要的参考价值和指导意义

By analysis strongpoint and defect of the Gravity Hollow Dam,on the base of the fracture mechanics,the effect of the prestressed value to the dam heel stress intensity factor of the Gravity Hollow Dam by the finite element method,that is studied and seek after the prestress-reinforced measure that can make up its defect.There is some certain reference to the gravity hollow dam applying prestressed technic.

通过分析空腹重力坝的优缺点,以断裂力学理论为基础,应用有限单元法探讨了预应力大小对空腹重力坝坝踵裂缝尖端应力强度因子的影响。预应力加固技术可以很好地弥补空腹重力坝所存在的缺陷,对设计空腹重力坝有一定的参考价值。

 
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