Analysis Method for Flow-Induced Random Load of Reactors
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摘要: 由于反应堆流激振动的复杂性,为了得到反应堆结构流激振动响应,目前主要以实验测量为主要研究手段,实验需要获得流体载荷函数。本研究利用反应堆1:1比例模型进行试验,得到反应堆脉动压力数据;并利用相干函数建立了通过脉动压力数据获取随机力载荷的数据处理方法。通过曲线拟合得到作用在反应堆堆内构件上的随机力载荷。获得的随机力载荷可进一步用于反应堆堆内构件的流激振动响应分析。Abstract: Due to the complexity of flow induced vibration in reactors, previous studies mainly focused on the experimental research. Based on the analysis of the random responses of core structures excited by fluctuating pressures, the fluctuating pressures is obtained experimently by scale model. The theoretic method is developed to analyze the random load on the core structures. The load spectrum obtained by this method can be used for the analysis of the response of core structures.
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Key words:
- Reactor /
- Random load /
- Fluctuating pressures
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