核电厂堆芯燃料组件地震反应分析

核电厂堆芯燃料组件在强震作用下难以避免地将产生摩擦、滑移和相互间的碰撞等非线性反应。关于燃料组件之间以及燃料组件与围板之间的碰境模拟对燃料给件地震反应的影响已有计算分析成果，但量，由于摩擦、滑移引起的燃料组件的非线性动力特性在燃料组件地震反应的现有计算模型中还未得到考虑。本文基于试验测定的燃料组件的非线性动力特性，提出了考虑上述因素的燃料组件地震反应分析方法。

Seismic response analysis of fuel assembly in nuclear power station

It is difficult for fuel assembly in nuclear power station to avoid nonlinear seismic response induced by friction, slip defonnation and impact under strong earthquake. The calculation results about the influence of impact simulation among fuel assemblys and between fuel assembly and plate on the seismic response of fuel assembly have been presented. But the nonlinear dynamic behaviors of fuel assembly induced by friction, slip deformation are not considerd in the present calculation model for the seismic response analysis of fuel assembly. In this paper, based on the nonlinear dynamic behaviors of fuel assembly given by the experiment on shaking table, a seismic response analysis method in which the factors mentioned above are considerd is proposed.