ILD HCAL Mechanical Integration HCAL Main Meeting Kirsten
- Slides: 25
ILD HCAL Mechanical Integration HCAL Main Meeting Kirsten Kschioneck, DESY 01/07/2008 HCAL Main Meeting- Mechanical Integration
Overview Principle of mechanical concept Results of FEM calculation Impact of results for the concept 01/07/2008 HCAL Main Meeting- Mechanical Integration 2
ILD detector -Mechanical concept- • TESLA/ ILD detector: Similar absorber structure • TESLA concept existed: learning from TESLA concept 01/07/2008 HCAL Main Meeting- Mechanical Integration 3
Calorimeter barrel • • Height/ length of barrel: 5. 6 m/ 4. 6 m Weight of one module: ≈ 14 t Weight of HCAL: ≈ 450 t Weight of HCAL + chambers + ECAL: ≈ 790 t 01/07/2008 HCAL Main Meeting- Mechanical Integration 4
Calorimeter module Side panel: 3 mm thickness Screw size: M 6 Advantage • Slim support structure (small amount of -cracks) Disadvantages • Uncertainties regarding stability • High tolerance requirements (e. g. holes for screws, flatness of absorber plates) 01/07/2008 HCAL Main Meeting- Mechanical Integration 5
Octant with chambers (M. Reinecke) 01/07/2008 HCAL Main Meeting- Mechanical Integration 6
Chamber cross section (M. Reinecke) 01/07/2008 HCAL Main Meeting- Mechanical Integration 7
Chamber topview (M. Reinecke) 01/07/2008 HCAL Main Meeting- Mechanical Integration 8
FEM calculation -16 modules- 01/07/2008 HCAL Main Meeting- Mechanical Integration 9
HCAL module Horizontal hanging Maximum deformation: 0. 09 mm Maximum stress (von Mises): 13. 9 N/mm² Vertical hanging Maximum deformation: 0. 35 mm Maximum stress (von Mises): 43 N/mm² Module standing Maximum deformation: 0. 7 mm Maximum stress (von Mises): 60 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 10
How are these positive results possible? compression ↔ tensile 01/07/2008 HCAL Main Meeting- Mechanical Integration 11
Barrel -Standing- Maximum deformation: 18. 5 mm Maximum stress (von Mises): 645 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 12
Barrel -fixation/ including chambers- Maximum deformation: 2. 9 mm Maximum stress (von Mises): 263 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 13
ECAL: weight load in one line Maximum deformation: 6. 18 mm Maximum stress (von Mises): 295 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 14
Brass Cu. Zn 38 Pb 2 Maximum deformation: 6. 35 mm Maximum stress (von Mises): 183 N/mm² (Steel: 2. 9 mm/ 170 mm²) 01/07/2008 HCAL Main Meeting- Mechanical Integration 15
FEM calculation -8 modules- 01/07/2008 HCAL Main Meeting- Mechanical Integration 16
HCAL module -with staggered spacer/ gap 7 mm- Horizontal hanging Vertical hanging Maximum deformation: 0. 7 mm Maximum deformation: 0. 4 mm Maximum stress (von Mises): 116 N/mm² Maximum stress (von Mises): 97 N/mm² Module standing Maximum deformation: 0. 6 mm Maximum stress (von Mises): 91 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 17
HCAL barrel -8 modules/ gap 7 mm- Maximum deformation: 2. 15 mm Maximum stress (von Mises): 115 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 18
HCAL module -without spacer/ gap 14 mm- Horizontal hanging Maximum deformation: 1. 64 mm Maximum stress (von Mises): 88 N/mm² Module standing Maximum deformation: 1. 38 mm Maximum stress (von Mises): 60 N/mm² Interesting effect: When the side panel changes from 3 to 5 mm, the deformation changes from 1. 38 mm to 1. 36 mm! 01/07/2008 HCAL Main Meeting- Mechanical Integration 19
Non-pointing From mechanical point of view possible. 01/07/2008 HCAL Main Meeting- Mechanical Integration 20
HCAL module -non pointing/ right angle. Vertical hanging Maximum deformation: 5. 0 mm Maximum stress (von Mises): 79 N/mm² Horizontal hanging Maximum deformation: 1. 1 mm Maximum stress (von Mises): 23 N/mm² Module standing Maximum deformation: 1. 7 mm Maximum stress (von Mises): 50 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 21
HCAL barrel -non pointing/ right angle- Maximum deformation: 10. 4 mm Maximum stress (von Mises): 158 N/mm² 01/07/2008 HCAL Main Meeting- Mechanical Integration 22
Effects of changed parameter Bigger side panel (3 mm 5 mm): Spacer no yes From steel to brass: Smaller gap (14 mm 7 mm): Pointing yes no displacement stress : big change : moderate change : small change 01/07/2008 HCAL Main Meeting- Mechanical Integration 23
Next steps • Define more detailed design: module connection, support of HCAL inside the cryostat etc. • Think about design and production of a model 01/07/2008 HCAL Main Meeting- Mechanical Integration 24
Conclusion • Calculations were made for a wide range of possibilities • Concept in general is possible but challenging • Concept is adaptable for different requirements (material; pointing/ nonponting etc. ) 01/07/2008 HCAL Main Meeting- Mechanical Integration 25
- Hcal
- Azimuthal symmetry
- Nurse inin
- Peanut allergy icd 10
- Ild
- Ild.deb
- Ild vs led
- Ild
- Kirsten wismer
- Kirsten ohm kyvik
- Kirsten høgh obling
- Hendrik kirsten
- Kirsten bunney
- Kirsten norris
- Kirsten carr
- Kirsten places her surveyor's telescope
- Kirsten hurley
- Kirsten lau
- Kirsten tollefson
- Kirsten heide
- Kirsten elger
- Konverteringsforbud
- Kirsten pedd
- For todays meeting
- Meeting objective
- What is meeting and types of meeting