新燃料运输容器运输多根小型组件的跌落分析

目的 通过跌落分析，确认STC容器可用于运输多根小型组件。方法 设计一个可装载多根小型组件的运输内胆，并从外形尺寸、质量、安装方式、重心位置等维度对内胆组件和新燃料组件进行比较，从而明确运输多根小型组件时STC容器的跌落姿态——与运输新燃料组件时一致。最后，比较STC容器在装载2种组件时的跌落分析。结果 跌落分析表明，在各种工况下的跌落中，相较于运输新燃料组件，STC容器运输多根小型组件的变形量要小。结论 通过内容物比对和跌落分析，证明了STC容器不仅可用于运输新燃料组件，还可以用于运输多根小型组件。该运输方案满足了跌落验收标准，确保了容器在各工况下跌落的闭合状态，从而提高了设计效率，节约了研制成本。

Drop Analysis of Transporting Multiple Small Assemblies with New Fuel Transport Casks

The work aims to confirm that the STC transport cask can be used to transport multiple small assemblies through drop analysis. A transport inner liner that can load multiple small assemblies was designed. The inner liner and new fuel assemblies were compared from the dimensions of external size, weight, installation method, and center of gravity position to clarify the drop posture of the STC cask when transporting multiple small assemblies, which was consistent with that of transporting new fuel assemblies. Finally, drop analysis of the STC transport cask when loading two types of assemblies was compared. The drop analysis showed that the deformation of the STC cask when transporting multiple small assemblies was smaller than that of transporting new fuel assemblies under various working conditions. Through content comparison and drop analysis, it is proved that the STC cask can not only be used to transport new fuel assemblies, but can also be reused to transport multiple small assemblies. This transportation scheme meets the drop acceptance standards, ensures the closed state of the cask during drops under various working conditions, improves design efficiency, and saves development costs.