ZDC Remote Handling System. March 10, 2011 Project Status and Forward Planning Technical Implementation Group Meeting Paul Debbins University of Iowa. Model Crane Installed on (-) TAN. Crane in Standby condition, parking position when not in use.
March 10, 2011
Project Status and Forward Planning
Technical Implementation Group Meeting
University of Iowa
Crane in Standby condition, parking position when not in use
Crane installation and testing underground at Pt5
- Provided a method to validate all geometric considerations
- Provided practice in assembly and handling of system underground
* Generate a sequence of assembly/operation steps with associated times and positions
for CERN Transport and RadioProtection groups.
Crane in stages of operational movement, with
Attached representative payload
Min. Payload - TAN (transport side)
Min. Actuator – TAN (QRL side)
Vertical to ceiling services
No collisons to hard artifacts of Tunnel and TAN.
Measured clearances in excellent agreement with Virtual Models – confidence in
the manual survey and its translation in to CAD
L(+) side vertical clearance was most critical. Model validates several cm available
space to expand vertical clearances in system – esp. min vertical space to BRAN
Actuator spindle protection
tube clearance to tunnel
wall services – plenty, incl.
anti-runout device extra length
of tube. No collision with QRL
Rotary Jack input drive coupling axle
Interference with rotary jack interconnect input drive axle. Discussed with E. Bravin. Simple to move gas hose.
No interference of crane with cable trays on either side.
ZDC cabling is to be re-done, to use single multi-contact connectors for all signals, HV, and Laser. This substantially
reduces the time spent (un)cabling during operations (ALARA). Eliminates the good probability of mis-cabling, and
reroutes the cables into clean pathways clear of crane and human movements in the area.
Vertical clearance to BRAN: crane carrier beam
Fully raised, 625mm clearance, 615mm vertical
Carrier travel to lowest pos + 10mm clearance
Above beam => “0” clearance to BRAN survey ball
Model testing allows to provide for 20mm additional
Clearance. Crane Design modified to provide
Additional BRAN overhead clearance.
Survey balls are removable and also provide
Useful fixation points for attachment to crane for
BRAN lifting. Discussed this option with E. Bravin
BRAN survey points
BRAN group must provide engineering to design and implement a fixture attaching the BRAN to the crane for BRAN removal.
This is NOT a Univ. of Iowa responsibility.
BRAN mounting in slot is also in need of remedy – BRANS are placed in different locations in the slot. 1 BRAN is keyed into
Locating holes in TAN, the other is ‘free – floating’. Both units need to be keyed at consistent locations, with proper clearances
To adjacent elements (ZDC) when mounted in TAN
Crane Model Testing - - - > Allows final commitment to geometry
With increased Vertical Clearances
Final Geometry allows exact commitment
To actuator specifications
- Actuator specs sent to supplier
to generate a current order then
Referred to KU and ordered.
~ 1 week
Some Structure Design modifications – DONE
Modified designs sent to welding fabricators for
Comments/mods to suit their best practices - DONE
Crane model ported to
Simulation / Analysis environment
To allow Force determination and
FEA analysis of complete model
Order Steel Structure Fabrication
~ 2 Weeks
Generate Mechanical Study of Safety
Sarcophagus Design - DONE
- Need to send to KU for production
- 1 Sarco needed for testing
“BARS” payload (S.Steelabosrber)
- Design DONE
- Send to A.L Perrot
for referral to CERN
shops for fabrication
Above Ground Testing of System
- Begin July 2011