CLIC Common RF-girder study

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Presentation transcript:

CLIC Common RF-girder study Sami Haavisto, 05.07.2017

My assignment Study the possibilities and options for common RF-girder Manufacturing Tolerances Design (Alignment and support) (Fixation/snake system to other modules) (Materials)

Current focus has been Simple models of different options for the girder Simple stress and deformation simulations to the models 6 different models with simulations already made Standard sections (IPE, etc.) Stainless steel for weld options, Epument 145/B for cast Supported from both ends of DB and MB girder Simulations: 300kg weight on MB, 120kg on DB

Weld option #1 Weight 22.3kg (for comparison) Max deformation 35μm

Weld option #2 Weight 45.6kg Max deformation 41μm Weights more and doesn’t bring any added benefit compared to other weld options

Weld option #3 Weight 23.2kg Max deformation 36μm

Weld option #4 Weight 28.8kg Max deformation 29μm

Cast option #1 Weight 43kg Max deformation 8μm Epument

Cast option #2 Weight 44.5kg Max deformation 7μm Epument

Next steps A design of machined plate (components fixed to it, beam alignment with plate) Tolerances possible and reasonable to achieve for girder Eliminate unnecessary options Simulations on effects of thermal expansion