Thermal and Modal Simulations for the CLIC Module

This article examines the modal frequencies and thermal deformations with different cooling schemes in unloaded condition of the latest girder and super accelerator structure (SAS) design of the CLIC module. Non-mass bearing parts and parts which didn’t significantly affect the rigidity of the model were removed in order to simplify the calculations. Thermal deformation analysis included only SA-structure made of oxygen-free copper (OFC). The results show that the girder together with the SAS form a top-heavy structure and natural frequencies will manifest in 20-55 Hz range. Furthermore, Thermal deformation analysis of different water cooling schemes show that dividing the single cooling loop into two or four separate loops increases the effectiveness of the cooling system as long as minimum individual mass flow rate is maintained.