1. Engineering design of the V-supports J.Huopana27.09.2010 Input from: G.Riddone, A.Samoshkin, R.Nousiainen, D.Gudkov, N.Gazis

2. Components which are taken into account when looking at the RF-structure supports Girder PETS tank coupler Accelerating structures Outside of the structures Cooling Vacuum manifolds Waveguides 3D model, courtesy of Dmitry Gudkov, EDMS 1092768 Introduction - RF-structure supports in the layout

3. SiC Sintered and brazed no screws, no hard clamping supports will be integrated – can not be removed or moved Two proposed solutions – MicroControle and Boostec Epucret material mineral cast inserts will be casted (rails, thread inserts) V-supports will be bolted to the rails and thread inserts input from Nick Gazis Supports and girders Epucret MicroControle Boostec First prototypes arriving soon!

4. SiC V-support require clamping components in order to fix the RF components. clamp concept shown above Drive Beam

5. Required modification to the PETS coupler would only be a hole for a pin (one long pin or two pins from both sides). Required modification to PETS

6. elongated hole for the pin Two parts would be clamped from both sides of the SiC V- support The pin would go through a elongated hole in the clamp.

7. Screws will be used to push the PETS down against the SiC V-support.

8. Both SiC V-supports and V-supports which are on the Epucret girder, can use the same clamping components. Both SiC V-supports and V-supports which are on the Epucret girder, can use the same clamping components.

9. The “push down” clamps and the clamp over the tank.

10. Clamp (green) is fixed to the V-support Clamp (green) is fixed to the V-support Threaded bars are used to “pull down” the pin which is in the coupler Threaded bars are used to “pull down” the pin which is in the coupler Bars can be rotate “freely” (orange) Bars can be rotate “freely” (orange)

11. Push Pull

12. Main beam Same type of clamping could be done for the main beam, but because of the space limitations, it will be more complicated Same type of clamping could be done for the main beam, but because of the space limitations, it will be more complicated only way how I can see this possible is to add some features to the AS only way how I can see this possible is to add some features to the AS Brazed/bonded or threads Brazed/bonded or threads

13. Added features to AS Added features SiC V-support Clamping mechanism Two (or one) block should be brazed/bonded to the outside surface of the AS. The block has a hole for a pin which is needed for the clamping.

16. Conclusions Design of the supports and clamping has been presented. Design of the supports and clamping has been presented. The integration check to the test module is ongoing. The integration check to the test module is ongoing. 2D-drawings to be finished. 2D-drawings to be finished. Procurement. Procurement. Thank you ! Thank you !

17. Extra stuff

18. Simulation of dead weight PETS as one single solid Cu simplification for the simulation, weight 52 kg. contact between SiC V and PETS is frictionless, others bonded Clamps stainless steel. Supports SiC, fixed from the base. Only load = gravity

19. Simulation of dead weight + vacuum Same 3D model simplification for the simulation, weight 52 kg. Clamps stainless steel. Supports SiC, fixed from the base. Loads: Gravity -1 atm to inner surfaces 110 N from both bellows to x-direction Bellow force estimated from the 3D-model of the bellow in the step file. Vacuum force tries to retract the bellow. 110 N is required to keep the original length This force is applied to the PETS model

20. Simulation of dead weight + vacuum Deformation in XDeformation in Y Deformation in Z Deformation in total

21. Simulation of dead weight + vacuum + RF PETS as one single solid Cu simplification for the simulation, weight 52 kg. contact between SiC V and PETS is frictionless, others bonded Clamps stainless steel. Supports SiC, fixed from the base. Mechanical loads + RF as temperature load (simplified as linear) ΔT = 1.2 K Mechanical loadsTemperature load +

22. Simulation of dead weight + vacuum + RF Deformation in XDeformation in Y Deformation in Z Deformation in total

23. Simulation of dead weight + vacuum + RF Reaction force which are caused by the loads are shown here. These can be used for the girder simulations