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快堆内部一些结构上呈现细长形式的重要部件可能存在涡致振动、湍流激振等流致振动现象。堆芯中心测量柱热电偶护管即为此类结构,工作状态下处于横向流动的液态钠之中,可能发生流致振动现象。分别利用美国ASME及日本JNC中判断细长结构是否发生流致振动的准则对快堆中所有中心测量柱热电偶护管进行了评价,得出了所有热电偶护管均不会发生流致振动的结论。为进一步验证
Some important parts of the structure that are slender in the structure of the fast reactor may have fluid-induced vibration such as vortex-induced vibration and turbulence excitation. Core center measuring column thermocouple protection tube is such a structure, under working conditions in the lateral flow of liquid sodium, the flow-induced vibration may occur. Respectively, using the United States and Japan JNC ASME JNC to determine whether the slender structure flow-induced vibration criteria for all central fast measuring reactor thermocouple protection tube was evaluated that all the thermocouple protection tube flow-induced vibration will not occur Conclusion. For further verification