Enrique Calvo Alamillo Madrid 1 March 2010. Index: 1.Proposal for a DHCAL m3 module. 2.Numerical simulations for a m3 module. 3.Extrapolation of the m3.

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Presentation transcript:

Enrique Calvo Alamillo Madrid 1 March 2010

Index: 1.Proposal for a DHCAL m3 module. 2.Numerical simulations for a m3 module. 3.Extrapolation of the m3 module philosophy for the ILD. 4.Cost for the mechanical structure of the m3 module proposed. 5.Conclusion. 6.Backup.

Mechanical structure assembled, parameters: 44 slots to can implement 44 MICROMEGAS o GRPCs. Structure compose of only 2 different kinds of pieces. Attached between by M8 screws, bolts by layer. plus base support pieces and the manipulation fixations (By 2 bolts of M20), only can be fixed elements to the bar pieces. 1.- Proposal for a DHCAL m3 module.

Mechanical structure assembled, parameters: Structure compose of only 2 different kinds of basics pieces. Attached between by M8 screws, bolts by layer. Plates can be produced totally from the laser cut, except the holes of the bar and the 16 mm thinness. 1.- Proposal for a DHCAL m3 module.

Mechanical structure assembled, parameters: can implement 44 MICROMEGAS o GRPCs. Can be implemented a cover and/or a piece to positioning the modules. 1.- Proposal for a DHCAL m3 module.

Mechanical structure assembled, parameters: Each GRPC or MICROMEGA have 6 friction Teflon point. 1 mm tolerances for mounting. 1.- Proposal for a DHCAL m3 module.

Deformation and stress: Calorimeter supported on the 4 big bolts on the top. Charged with 44 modules of about 50 kg. Max. deformations are about 100 microns. The punctual max. stress it is only 74 Mpa, well away from the elastic limit of the material (stainless steel) 2.- Numerical simulations for a m3 module.

Deformation and stress with several suppositions: fixed on top side on 4 points. Charged with 44 modules of about 50 kg. 2.- Numerical simulations for a m3 module.

Deformation and stress with several suppositions: fixed on the one lateral side from the M8 bolt. Charged with 44 modules of about 50 kg. The max. reactions on the M8 bolts on the lateral side are: Fx= +/ N Fy= N Fz= +/- 300 N M8 bolt have the elastic limits, function of the material, between about N to N. And the pre-stressed forces are between 8200 N to N. This is the situation more adverse for the M8 bolts. 2.- Numerical simulations for a m3 module.

Deformation and stress with several suppositions: fixed on the one lateral side from the M8 bolt, rotated 90º. Charged with 44 modules of about 50 kg. 2.- Numerical simulations for a m3 module.

Deformation and stress with several suppositions: fixed on base side from the M8 bolt. Charged with 44 modules of about 50 kg. 2.- Numerical simulations for a m3 module.

Deformation and stress with several suppositions: fixed on base side from the M8 bolt, rotated 90º. Charged with 44 modules of about 50 kg. 2.- Numerical simulations for a m3 module.

Deformation and stress with several suppositions: fixed on top side from the M8 bolt. Charged with 44 modules of about 50 kg. 2.- Numerical simulations for a m3 module.

Distribution propose for different DHCAL modules for the ILD: (Not take into account the modular Length of the GRPC or MICROMEGAS, for this proposal) 3.- Extrapolation of the m3 module philosophy for the ILD.

Distribution propose for different DHCAL modules for the ILD: (Not take into account the modular Length of the GRPC or MICROMEGAS, for this proposal) 3.- Extrapolation of the m3 module philosophy for the ILD.

Distribution propose for different DHCAL modules for the ILD: This situation can be solved with a composition of the previous solutions. 3.- Extrapolation of the m3 module philosophy for the ILD.

AISI 304 Piece tipe 1.: ~45 pieces. ~760 eur/piece (finalized) Piece tipe 2.: ~92 pieces. ~55 eur/ piece (Need to do holes/fillet on the milling machine) Bolts. M8x40 inox : ~1000 units. ~240 eur/1000 units Rest of elements: Bolts M20x supports pieces for the top and 4 bases: ~1000 eur/pack Total cost 760x45+55x = eur. Total cost 760x45+55x = eur. AISI 316 cost of the material need to be incremented about 50% -80%. AISI S cost of the material need to be incremented about 100% -130%. 4.- Cost for the mechanical structure of the m3 module proposed.

Structure for a m3 module: Due to the standards thinness of the plates. The prices are much lowers in other kinds of stainless steel (316L or may be 310 or 310S). Only 2 different kinds of pieces to produce. With a minimum of machine operation on each piece. Prices and times much lowers. Very rigid structure, on different scenarios. ‘Auto-portant’ structure. DHCAL for the ILD: Can be adapted the same philosophy to different modules dispositions. Need to be fixed the modular length of the GRPC or MICROMEGAS. 5.- Conclusions.