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AMS TRD GAS SUPPLY SYSTEM BOX_S Mechanical Structure Corrado Gargiulo* Robert Becker** *INFN Roma1 **MIT CERN, July 16-17 2002 AMS TRD GAS SUPPLY SYSTEM BOX_S Mechanical Structure Corrado Gargiulo* Robert Becker** *INFN Roma1 **MIT CERN, July 16-17 2002
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“Box_S ” Mechanics Lay-out Upper USS Interface Lower USS Interface XENON tank CO2 tank Brackets Plate Weight 12 kg Material Al alloy 7050 T7451 Overall dimension 154.875 X 557 X 863 mm Mixing tank USS C.GARGIULO CERN 16 07 2002 x y z
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“Box_S ” Geometry updates C.GARGIULO CERN 16 07 2002 USS Upper Trunnion Bridge Beam section from 6 inches to 5 inches Corner Cut Side rib thickness from 3 mm to 5 mm OLDNEW Additional rib Material : Al 7075 T6Material : Al 7050 T7451 Chamfers from R 5 mm to R 10 mm
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“Box_S ” FEA: new model ASSEMBLY PLATEPLATE CHAMFERS MIX_TANK BRACKETS C.GARGIULO CERN 16 07 2002 Xe / CO2 TANKS BRACKETS
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x y z C.GARGIULO CERN 16 07 2002 “Box_S ” FEA: STATIC ANALYSIS * @ Xe bracket
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“Box_S ” FEA: STATIC ANALYSIS Inertial load (13, 3.25, 3.25)g Attachement points relative deflection (9.301, 2.350,2.746) “Box_S ” FEA: STATIC ANALYSIS Inertial load (13, 3.25, 3.25)g Attachement points relative deflection (9.301, 2.350,2.746) C.GARGIULO CERN 16 07 2002 x y z 1.32E+002N/mm^2 7.55E- 001mm x z
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C.GARGIULO CERN 16 07 2002 1.49E+002 N/mm^2 7.74E- 001mm “Box_S ” FEA: STATIC ANALYSIS Inertial load (3.25, 13, 3.25)g Attachement points relative deflection (9.301, 2.350,2.746) “Box_S ” FEA: STATIC ANALYSIS Inertial load (3.25, 13, 3.25)g Attachement points relative deflection (9.301, 2.350,2.746) x y z
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“Box_S ” FEA: MODAL ANALYSIS OLD “Box_S ” FEA: MODAL ANALYSIS OLD C.GARGIULO CERN 16 07 2002 x z x z y First mode 64,29 Hz y z x z Second mode 74.16 Hz
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“Box_S ” FEA: MODAL ANALYSIS New model Vs Old New model Vs Old “Box_S ” FEA: MODAL ANALYSIS New model Vs Old New model Vs Old OLD NEW1st mode: 74.0Hz 1st mode: 64.3 Hz Xe Bracket Area C.GARGIULO CERN 16 07 2002
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“Box_S ” FEA: MODAL ANALYSIS NEW “Box_S ” FEA: MODAL ANALYSIS NEW C.GARGIULO CERN 16 07 2002 x z y z x 1st mode: 74,0 Hz 2nd mode: 87,9 Hz
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C.GARGIULO CERN 16 07 2002 “Box_S ” Production
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