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DIpoli SuperCOnduttori RApidamente Pulsati (DISCORAP)

DIpoli SuperCOnduttori RApidamente Pulsati (DISCORAP). MECHANICAL ISSUES OF INFN DESIGN. 5-BLOCKS LAYOUTS (30.5 mm thick collar). collar thickness: 30 mm operative current: 8924 A Bpeak: 5.1 T b3 = 0.09 u. b5 = 0.10 u. b7 = 0.40 u. b9 = 0.48 u. b11= 0.95 u. b13= -1.14 u. a.

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DIpoli SuperCOnduttori RApidamente Pulsati (DISCORAP)

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  1. DIpoli SuperCOnduttori RApidamente Pulsati (DISCORAP) MECHANICAL ISSUES OF INFN DESIGN

  2. 5-BLOCKS LAYOUTS(30.5 mm thick collar) collar thickness: 30 mmoperative current: 8924 ABpeak: 5.1 Tb3 = 0.09 u. b5 = 0.10 u.b7 = 0.40 u. b9 = 0.48 u.b11= 0.95 u. b13= -1.14 u. a temperature margin(Roxie) 0.98 K j Lorentz forces: Fx=+0.68 MN (prev. +0.63 MN) Fy=-0.30 MN (prev. -0.28 MN)

  3. FE model for structural analysis FE insulation thickness: 1.25 mm0.75 (ground insulation)0.5 (protection sheet) FE minimum insulation thickness: 2.0 mm0.25 (quench heaters)0.5 (cooling channel)0.75 (ground insulation)0.5 (protection sheet) • stage 1: pre-stress • stage 2: cool-down • stage 3: energization FE minimum insulation thickness: 1.0 mm0.75 (ground insulation)

  4. effect on harmonics

  5. Von Mises stress in the winding(shim thickness=0.5 mm) Pre-stresssmax=126 MPasmean~74 MPa Cool-downsmax=105 MPasmean~62 MPa Energizationsmax=83 MPasmean~63 MPa

  6. shim thickness=0.5 mm UY UX between 0 and 4.5 T:UX= 66 mmUY= -52 mm between 1.5 and 4.5 T:UX= 44 mmUY= -34 mm axial reaction force:after collaring 1.87 MNafter cool-down 1.44 MNafter energization: 1.70 MN

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