1 1. EMR production status 2. EMR simulations (FEA studies) 3. EMR @ RAL 1. EMR production status 2....

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1 1. EMR production status 2. EMR simulations (FEA studies) 3. EMR @ RAL Teleconf. January 21, 2010 Progress status of EMR Assembly University of Geneva: A.Blondel, J-S Graulich, V.Verguilov, Coralie Husi, F.Masciocchi, L.Nicola, R.Bloch, N.Geisig, P.Béné, F.Cadoux

Transcript of 1 1. EMR production status 2. EMR simulations (FEA studies) 3. EMR @ RAL 1. EMR production status 2....

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1. EMR production status2. EMR simulations (FEA studies)3. EMR @ RAL

1. EMR production status2. EMR simulations (FEA studies)3. EMR @ RAL

Teleconf.January 21, 2010

Progress status of EMR Assembly

University of Geneva: A.Blondel, J-S Graulich, V.Verguilov, Coralie Husi, F.Masciocchi, L.Nicola, R.Bloch, N.Geisig, P.Béné, F.Cadoux

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EMR Design & Module M0 prototype

KL

Movable frame(existing part)

EMR

EMR features:- 24 modules- 1 module is made of X&Y planes- Nearly 11 km of WLS fibers (1.2mm diam.)- 48 multianode PMT- 48 single pixel PMT- 28 Kg per plane (1,4 Ton totally)

As a recall…

EMR Outer Box

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Module M0 prototype

FEE has been fixed upright

Single pixel PMT

Light tight enclosure

Support(shielding?)

PMT

electronics

2 planes X & Y have been assembled in a wooden black box…a good experience to get a better feeling about final schedule …

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EMR Production status

STEP 1: Bar cutting to length almost completed!(from 3.5mm to 1.1m)

Nicolas & Laurent

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EMR Production status

STEP 2: Fine milling of the bars (1100 +/-0.1mm)…on going at MECATEST in Geneva (sub contrator).2 batches remaining (due date: first week of February). This includes: milling, drilling (for glue injection) and tapping (for insert fixation)

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The full production of fiber gluing will start soon (within a week or so).The pace will be 20 complete gluing per day (already challenging!!)That means:- 1 plane per week (or 2 modules per month)- 2 modules to be tested per month … looks feasible (manpower is not sufficient to speed it up)Based on the 1rst Module 0, it’s achievable but without any margin!

EMR Production status (tentative schedule)

STEP 3: Gluing and fiber insertion (all the inserts in aluminum are ready for assembly)…right after the white painting of the bar ends (done in one go)

insert

White paint not shown here

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Ongoing, are 2 different studies:-One from Ghislain Gregoire on Magnetic shielding (by OPERA),-One from F.Cadoux about mechanical behaviour (sagging, stresses… in order to size the EMR Outer Box properly.

EMR simulations (FEA studies)

3D IGES model of the all shielding

FEA model of the whole EMR

Meshing without covering plates

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EMR simulations (FEA studies)

Sagging and stresses look OK (60x60mmx3mm cross section beams).It showed the need of reinforcing the 4 corners (connections between modules) by means of aluminum corner beams. Several configurations studied:- Transportion loads (horizontal)- Rotation to get it upright @ RAL- 1G Loading when vertical (in situ)

Worst case study:No side panels,No end plates (Top and bottom)

Slings for Handling(used for rotation)

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Building/platform issues

EMR Integration @ RAL

EMR Box

Thanks to Tim for the « environnement » STEP file…

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EMR Integration @ RAL

EMR BoxBuilding/platform issues (close up on EMR…we need about 1800mmx1800mmx1000mm)

1000 mm

1800

mm

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Building/platform issues (seen from one side…)

EMR Integration @ RAL

EMR Box

EMR active part

81

5 m

m Could it be modifiedor removed?

Trolley

500mm310mm

Cable tray

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Building/platform issues (seen from the Top…)

EMR Integration @ RAL

EMR Box

EMR active part

Platform edge

1800

mm

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Building/platform issues (seen from the Top…)

EMR Integration @ RAL

EMR Box

EMR active part

Platform edge

1800

mm

Useful to anticipate/accomodate with crane works(sling fixations, rotations, mouvements,…)

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Building/platform issues (anticipation / differents STEPS of MICE)

EMR Integration @ RAL

EMR Box

The EMR Outer Box will comply with the differents STEPS (moving downstream)So, we have to work closely with Tim, Andy,… to make sure that no interference with platformoccurs…anytime! CAD works first and soon (to freeze the Outer Box)

ST

EP

xx

ST

EP

yy