1. 9th Detector Group Jamboree
Ioannis Apostolidis
Entry level mechanical engineer
October 31, 2018

2. Part 1: Before ESS

3. Part 1: Before ESS
Graduate from University of Patras – Mechanical Engineering & Aeronautics Dept.
Master thesis: “Experimental investigation of the hemodynamic field of an occluded artery with anastomosis”
Goal: Visualisation of “blood” flow in an area of the human aorta where the vessel is narrowed due to deposition of atheromatic plaques
Experimental Setup
Indicative Results

4. Part 1: Before ESS
CERN Technical Student CMS detector – Engineering & Integration Group
Main Tasks:
CAD & Simulation of steel structures to be used as additional storage space
Correction of CAD files migrated into CATIA V5 from older EUCLID CAD software
Great opportunity to:
Get experience in actual working conditions
See how engineering is done in a science-oriented environment
Meet new people
Witness CERN!

5. Part 1: Before ESS FEAC Engineering - Engineering consultancy company
- CAD and FEA
Projects that involve:
Science
Aerospace
Industry
ASSODIVERS Assomat II
CERN - Fermilab 15T Dipole Demonstrator analysis
ESA JUICE SEMS

6. CAD FEA Tools Part 2: At ESS Joined ESS in August 2017
Mainly involved with Multi-Grid and Multi-blade projects
Tools
CAD
FEA

7. Part 2: At ESS MultiGrid CSPEC Vessel Analysis
Simulation and evaluation of different concepts for the CSPEC vessel providing necessary feedback for the mechanical design
Miscellaneous simulation needs of various scenarios and parts of the vessel
From 3-compartment design...
...to 4 compartments with smaller grids...
...to a narrower vessel with 2 compartments...
...to a single-compartment design with thicker window
Current design: 4mm thick window & sides, 1bar pressure

8. Part 2: At ESS MultiGrid MG-SEQ Vessel Analysis
The design of the MG-SEQ vessel got the same treatment as the CSPEC vessel: it has been tested and changed taking into account results from the simulation:
From an 8x5 rod, 2mm window design ...
...to an 8x5 rod, 3mm window design ...
...to an 8x10 rod, 3mm window design ...
...to an 8x17 rod, 3mm window design ...
...to the final design, smaller vessel, no internal supports, 4mm uniform thickness in window and side walls
The more we consolidated the design, the more detailed and complicated the simulation became. From a processing duration of some minutes for the early models, to ~13 hours for the more detailed iterations 8

9. Part 2: At ESS
MultiGrid
Holder design and manufacturing for CSPEC proto blades
MultiGrid projects require large amounts of Boron coated blades
Necessity to use the full effective range of Chewbacca : merge small blades into long triple blades
Current holders are too short – Need for own design that can be produce tailor made holders for different future blade coating requirements
Need to manufacture longer towers to accommodate holders
Blades bend uring coating – supports needed

10. Part 2: At ESS MultiBlade MB18 design adjustment MB300 cassette design
Design adjustments of the U-frames that house the converters of the latest MB iteration
Design and manufacturing of the U-frames that house the longer converters
Design and manufacturing of the longer converters
More future MB action!

11. Part 3: Fitting in the team
EXPERTISE
UPDATED
COMMUNICATION
SCIENCE ORIENTED

12. Part 4: Goals and Vision
Proactive
Timely
Creative