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