β=0.92 Cavity Safety Bracket Design In partnership with: Sergey Cheban India/DAE Italy/INFN PIP-II β =0.90 & 0.92 Jacketed Cavity FDR UK/STFC 1 February 2019 France/CEA/Irfu, CNRS/IN2P3
MAXIMUM AXIAL DEFORMATION “Tuner - Trust Table” for b=0.92 cavity He Vessel • 1 Maxim Ma ximum um sa safe e axial xial Cavity Beamline de defor ormation tion for or b= b=0.92 .92 cavit vity y is is 0.7 .70 0 Insulated Vacuum mm mm Cavity length Temperature Protection Insulated Cavity He Forces on the changes, The steps during cavity Vacuum, Beamline, Vessel, cavity flange for for non- assembly or operations Safety Brackets fully constrained constrained bar bar bar cavity, kN cavity, mm Spool, Transition 0 0.00 1 1 1 1 Cavity after dressing Safety Brackets Field Probe Cavity leak check at the -3.83 -1.10 1 0 1 2 clean room Tcavity=300K He Vessel leak check during 0.014 -0.03 1 1 0 3 CM assembly He Vessel pressure test -0.03 0.06 1 1 3.3 4 during CM assembly He Vessel leak check during -4.4 -1.10 1 0 0 5 CM testing Tuner Installed He Vessel pressure test -3.87 -1.01 1 0 3.3 6 during CM assembly Start of cooling down CM or -0.02 0.04 5K 0 0 1.5 7 HTS 0 0.00 2K 0 0 0.03 8 Operating condition -0.05 0.10 5K 0 0 4 9 Cold loss of vacuum accident From Timergali Khabiboulline 2 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
Safety Bracket 3 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
Exploded View • 1 4 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
Boundary Conditions 5 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
Deformation 6 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
Equivalent Stress Titanium Grade 2 Yield strength (275MPa) Titanium-45Niobium Yield strength (476MPa) 7 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
Summary • 0.92 Safety bracket design was done based on “Tuner -Trust Table” from Timergali Khabiboulline • Maximum total deformation ~0.3mm are below safe axial deformation 0.7mm from “Tuner - Trust Table” 8 S. Cheban | B 0.92 Cavity Safety Bracket Design 2/1/2019
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