The road transportation of critical components for cryogenic cryomodules is a challenging task. Indeed, the shipping and the handling of fundamental sub-assemblies can expose these components to harmful dynamic loads that can jeopardize their structural integrity. This article has the purpose of developing a finite element multibody model capable of assessing the acceleration on a test coupler for a cavity of the Single Spoke Resonator 1 subjected to a typical road transportation trip. A multibody model consisting of rigid bodies and finite element–imported flexible bodies has been created allowing a comparison of the simulated and experimental acceleration. Afterwards, an experimental on-road test, whose set-up is described in this article, has been carried out at Fermilab with instrumented components. Being able to effectively simulate and validate the dynamic effects on such sub-assemblies makes it possible, for the future, to simulate more complex structures subject to dynamic loadings, such as the entire cryomodules during shipping. Furthermore, the results from the simulations can be used to guide the design of new suspension systems suitable for the reduction mitigation of structural vibration during the road transportation of cryomodules.

低温低温模块关键部件的公路运输是一项具有挑战性的任务。事实上，基本子组件的运输和处理会使这些组件暴露在有害的动态载荷下，从而危及它们的结构完整性。本文旨在开发一个有限元多体模型，该模型能够评估单辐谐振器 1 空腔的测试耦合器在典型公路运输过程中的加速度。创建了一个由刚体和有限元导入的柔性体组成的多体模型，可以比较模拟和实验加速度。之后，在费米实验室使用仪器化组件进行了实验性道路测试，本文描述了其设置。能够有效地模拟和验证对此类子组件的动态影响，将来可以模拟更复杂的受动态载荷影响的结构，例如运输过程中的整个低温模块。此外，模拟结果可用于指导适用于减少低温模块道路运输过程中结构振动的新型悬挂系统的设计。