J.C. Perez on behalf of SMC collaboration team J.C. Perez
description
Transcript of J.C. Perez on behalf of SMC collaboration team J.C. Perez
ESAC REVIEW OF THE HIGH FIELD DIPOLE DESIGN
MAGNET STRUCTURE DESIGN, MANUFACTURING, ASSEMBLY
PROCEDURE AND TESTS
MARCH 2012FOR EUCARD-WP7-HFM
J.C. Perez on behalf of SMC collaboration team
J.C. Perez
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OUTLINE
Magnet structure designManufacturing statusAssembly procedurePreparation for cold tests
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MAGNET DESIGN
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MANUFACTURING STATUS
Price inquiry for the structure launched in September 2011
The order placed in November 2011 has been split between 3 European companies Cold-mass to Aratz (Spain) Coil-pack (& dummy coil) to Boessenkool (Netherland) Axial compression system to Mectalent (Finland)
All detailed drawings have been approved in December 2011
Delivery of all components is expected by middle of April 2012
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WORK IN PROGRESS ON COMPONENTS
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2 sets of Bladders (60 and 75 mm *1600mm) will be produced @ CERN by end of May
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Coil layer 1-2
Coil layer 3-4
Fiber glass cloth filler
ASSEMBLY PROCEDURE
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2 facing surfaces of the coils will be mold released Gap between coils will be filled with 0.9 mm fiber glass
cloth Impregnation of the fiber glass using the coils as cavity This will guarantee a perfect contact between the 2 coils This technique will allow to separate the coils in case of
failure of one coil
GAP IMPREGNATION
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Coil lifting tool
Coil rotation tooling
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Assembly sequence of the coils in the vertical pads
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Horizontal pads
COIL-PACK ASSEMBLY
Coil-pack assembly lifting tool
Coil-pack assembly
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Coil-pack rotating tooling
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Coil-pack lifting tooling
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A CERN standard rotating device will be used to turn the magnet
½ yoke weight: 2400 kg
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POSITIONING THE YOKE2
8/0
3/2
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2
The 2 half yokes will be aligned with no gap in between
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Sliding the aluminum shell
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An aluminum support structure will be used to clamp the magnet to the rotating device
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The flat surfaces of the two 1/2 yokes are in contact
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Two bladders will be used to push the ½ yokes towards the shell inner radius to allow gap keys insertion
Standard hydraulic jacks can be used instead of bladders
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Gap keys will be inserted in the yoke gap
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The assembled parts will be rotated to horizontal position
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Yoke and shell will be transported to an assembly table
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INA type bearing rollers will be used to slide the coil-pack into the yoke
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The coil-pack will be transported to the assembly table
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The coil-pack will be pushed into the yoke aperture
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Detailed view of the coil-pack inserted in the yoke
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3 vertical bladders will be used to lift the coil-pack and remove the rollers
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Temporary keys will be inserted to center the coil –pack into the yoke aperture
COILS LOADING OPERATION
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Horizontal bladders insertion
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Pumping horizontal bladders & insertionof horizontal keys
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Vertical bladders insertion
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Pumping vertical bladders & insertion of vertical keys
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Final configuration after loading operation
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Axial compression system
Bladders operation to change coil pre-stress remains possible after assembly of the end plates
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Coils interconnection
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Magnet ready to be transported
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12From horizontal to vertical position in
SM18
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Magnet in the cryostat
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ALUMINUM DUMMY COIL ASSEMBLY
The first mechanical assembly will be performed using aluminum blocks replacing the real coils
This will qualify the support structure, the assembly and loading procedure and validate the FEM
The aluminum dummy coils will be instrumented with strain gauges in the aperture
The way to cool-down the structure to 77 K in LN2 is under investigation
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ACKNOWLEDGEMENTS
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THANKS FOR YOUR ATTENTION
CEA/Saclay:M. Durante, P. Manil, J.F. Millot, J.M. Rifflet, F. Rondeaux,
CERN:P. Ferracin, E. Fornassiere, J. Humbert, A. Milanese, L. Oberli, M. Timmins, G. Villiger,,
Fresca2 collaboration team