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为了保证 ２００ ＭＷ供热堆堆芯结构在地震时的完整性、控制棒通道在地震时畅通，和供热堆的抗震安全，有必要进行全尺寸的堆芯单元模型的抗震试验。从 ２００ ＭＷ供热堆堆芯结构的特点出发，研究了模型设计的原则和动力学相似的问题，重点对堆内支承，燃料组件和锆盒等重要部件的动力学简化原则进行了阐述，利用有限元法分析了堆芯结构的动力学特性，讨论了试验模型和计算模型的关系，以及支架的设计问题，为台架试验打下了基础。通过本研究，不仅可对供热堆设计方案的性能进行恰当的评价，而且可指出进一步改善设计使结构达到优化的方向，保证供热堆的安全运行。
In order to ensure the integrity of the core structure of a 200 MW heating reactor during an earthquake, the control rod passage is smooth during earthquakes and the seismic safety of the heating reactor, it is necessary to carry out the seismic test of the full-size core unit model. Based on the characteristics of the 200 MW heating reactor core structure, the principle of the model design and the problem of similar dynamics are studied. The principle of dynamic simplification of the important components such as the inner support, the fuel assembly and the zirconium box in the reactor is mainly described. The finite element method is used to analyze the dynamic characteristics of the core structure. The relationship between the experimental model and the calculation model and the design of the support are discussed. Through this study, not only the performance of the heating reactor design can be properly evaluated, but also to further improve the design to optimize the direction of the structure to ensure the safe operation of the heating reactor.