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core barrel
相关语句
  吊篮
    Theoretical Study in the Fluid-Induced Vibration Analysis of Reactor Core Barrel
    反应堆吊篮流致振动响应分析中的理论研究
短句来源
    Dynamical Characteristics Analysis of Core Barrel of Nuclear Reactors in Air and Still Water
    反应堆吊篮在空气和静水中的振动特性分析
短句来源
    By means of the fliud-structure interaction, the dynamical characteristics of the core barrel of nuclear reactors in air and in still water were investigated using program ANSYS.
    采用流体结构耦合方法,用ANSYS程序对反应堆吊篮在空气和静水中的振动特性进行了研究.
短句来源
    A solid model was used to simulate the core barrel, the fluid structure was simulated by the element of fluid80, thus the effect of added mass of still water on the dynamical characteristics of the core barrel was included.
    吊篮结构采用实体建模,流体结构采用fluid80单元模拟,并考虑水的附加质量对吊篮振动特性的影响.
短句来源
    The research results show that both in air and in water, the first several order nature frequencies of the core barrel are formed from beam and shell frequencies under its different boundary conditions, and circumferential rotation and axial flexible frequencies are its higher order frequencies.
    结果表明,在不同的约束条件下,吊篮在空气和静水中的前几阶固有频率都包含了梁式振动频率和壳式振动频率,环向扭转振动频率和轴向伸缩振动频率为吊篮的高阶频率;
短句来源
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  相似匹配句对
    Theoretical Study in the Fluid-Induced Vibration Analysis of Reactor Core Barrel
    反应堆吊篮流致振动响应分析中的理论研究
短句来源
    Dynamical Characteristics Analysis of Core Barrel of Nuclear Reactors in Air and Still Water
    反应堆吊篮在空气和静水中的振动特性分析
短句来源
    Crack Analysis of Barrel
    枪管裂纹分析
短句来源
    STUDY OF VAPOUR CORE PUMP CHARACTERISTICS
    汽心泵特性研究
短句来源
    Research and Prospect on the Air-core Vortex
    吸气旋涡的研究与展望
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  core barrel
In soils with a moisture content less than 10% a double-tube core barrel must be used.
      
A combined experimental-analytical approach in the fluid-induced vibration analysis of the reactor core barrel is proposed.
      
A combined experimental-analytical approach in the fluid-induced vibration analysis of the reactor core barrel
      
These include the positive displacement coring motor (PDCM), the "Navi-drill" core barrel, and a top driven diamond coring system (DCS).
      
The evolution of these progressive scientific coring systems began with the Rotary Core Barrel (RCB) used by the DSDP and proceeded to the highly advanced Diamond Coring System (DCS) currently under development by ODP engineers.
      
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By means of the fliud-structure interaction, the dynamical characteristics of the core barrel of nuclear reactors in air and in still water were investigated using program ANSYS. A solid model was used to simulate the core barrel, the fluid structure was simulated by the element of fluid80, thus the effect of added mass of still water on the dynamical characteristics of the core barrel was included. The research results show that both in air and in water, the first several order nature frequencies...

By means of the fliud-structure interaction, the dynamical characteristics of the core barrel of nuclear reactors in air and in still water were investigated using program ANSYS. A solid model was used to simulate the core barrel, the fluid structure was simulated by the element of fluid80, thus the effect of added mass of still water on the dynamical characteristics of the core barrel was included. The research results show that both in air and in water, the first several order nature frequencies of the core barrel are formed from beam and shell frequencies under its different boundary conditions, and circumferential rotation and axial flexible frequencies are its higher order frequencies. Moreover, the vibrational frequencies of the core barrel in still water are much lower than its corresponding order frequencies in air.

采用流体结构耦合方法,用ANSYS程序对反应堆吊篮在空气和静水中的振动特性进行了研究.吊篮结构采用实体建模,流体结构采用fluid80单元模拟,并考虑水的附加质量对吊篮振动特性的影响.结果表明,在不同的约束条件下,吊篮在空气和静水中的前几阶固有频率都包含了梁式振动频率和壳式振动频率,环向扭转振动频率和轴向伸缩振动频率为吊篮的高阶频率;吊篮在空气中的振动频率比其在静水中相应的振动频率高.

In the design of Qinshan Ⅱ nuclear power plant, Fluid-Induced Vibration of the reactor internals has been studied with the combination method of experimental and theoretical analysis. For the theo- retical analysis of core barrel, a special methodology has been adopted. This paper describes the analysis process of this method, deduces the theoretical basis, puts forward the restriction conditions for usage, and studies the applicability in Qinshan Ⅱ. It is considered that this method has definite theoretical...

In the design of Qinshan Ⅱ nuclear power plant, Fluid-Induced Vibration of the reactor internals has been studied with the combination method of experimental and theoretical analysis. For the theo- retical analysis of core barrel, a special methodology has been adopted. This paper describes the analysis process of this method, deduces the theoretical basis, puts forward the restriction conditions for usage, and studies the applicability in Qinshan Ⅱ. It is considered that this method has definite theoretical foundation and it could be used in the engineering design if the restriction conditions are satisfied. The engineering practice of Qinshan Ⅱ may have some limitation in satisfying the restriction conditions simultaneously, especially for the characteristics of excitation spectrum, damping, and nonlinear effects. Farther theoretical and engineer application study should be devoted in this field.

在秦山核电二期工程设计中,采用了实验和理论分析结合的方法对堆内构件流致振动问题进行研究。其中,吊篮流致振动理论分析使用了一种特殊的方法。本文介绍了该方法的分析过程,推导了其理论基础,提出了使用限制条件,并对其在秦山二期工程中的适用性进行了研究。本文认为.该方法有一定的理论依据,如能满足文中提出的前提条件,可应用于工程设计,秦山二期的工程实际在同时满足这些前提条件上可能存在一些局限性,在激励谱的特性、阻尼和非线性因素影响等方面应开展进一步的理论和工程应用研究。

>=The dynamical characteristics of a core barrel comp onent of CNP1000 nuclear reactor is studied by numerical calculation and test. The calculated and the test were on the vibration of the model in air and under still water, and the test also was on the vibration induced by flowing water. The calculation and test results show that the natural frequencies are as about half in still water as those in air, and that the speed of the water flow affects natural frequencies remarkably, they decreasing as the...

>=The dynamical characteristics of a core barrel comp onent of CNP1000 nuclear reactor is studied by numerical calculation and test. The calculated and the test were on the vibration of the model in air and under still water, and the test also was on the vibration induced by flowing water. The calculation and test results show that the natural frequencies are as about half in still water as those in air, and that the speed of the water flow affects natural frequencies remarkably, they decreasing as the increasing in the speed of water flow.

介绍了CNP10 0 0吊篮组件模型在空气、静水中振动特性计算结果、试验结果和水力回路上的动水振动特性结果。结果表明,吊篮组件静水中的振动频率值较空气中下降很多(一半左右) ,吊篮容器内、外的流体附加质量十分显著;随流速的增加,吊篮的响应频率明显下降

 
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