Agata Week Legnaro12th – 15th November 2007

Mechanical UpdateJohn Strachan

1

Contents of talk

Main Topics.

FlangesSingle FlangeFlange ArrayTooling requirements

DetectorMeasurementsAdjustment MechanismTransportation frame

Main Support Structure

Liquid Nitrogen System

Future Involvement2

PrototypeMeasurement

Measurement Aim.

To assess if the production method proposed would produce

flanges accurately enough to allow for the production of a 15

flange 1π ball arrangement.

Single Flange Prototype made at Legnaro, and measured with a CMM

at Daresbury.3

MeasurementResults

Measured deviation:

-0.004,+0.002,+0.007,+0.008,+0.013

670

θ

0.0214°error = 0.25mm

0.0128° error = 0.15mm

0.0086°error = 0.1mm

0.0043°error = 0.05mm

Ω0.0521°error = 0.25mm

0.0313°error = 0.15mm

0.0209°error = 0.1mm

0.0104°error = 0.05mm

Measured deviation:

-0.011,+0.0001,+0.0002,+0.0003,+0.0007

Conclusion.

The prototype flange machined by LNL was well machined, Congratulations are deserved, care should be taken to maintain the accuracies achieved.

4

Single FlangeManufacture

Images of single flanges being manufactured

5

Flange ArrayMeasurement

Measurement Aim.

To assess if the flanges could be assembled accurately enough to allow for the

production of a 15 flange 1πball arrangement.

6

Flange ArrayMeasurement Results

Flange 4

Flange 2

Flange 3

Flange 5

Flange 1

Conclusion.

Tooling will be required to improve positioning of flanges.

7

Flange ArrayTooling Requirements

1 2 3

654

8

Flange ArrayTooling Requirements

97 8

10 11 12

9

Flange ArrayTooling Requirements

14 1513

16 1718

10

Flange ArrayTooling Requirements

19 20 21

Tooling pieces order placed.

Delivery expected:

Early December

22

23

11

Detector Measurements

Romer Arm

Detector end cap

M10 studs

Adapter plates

End cap sealing plate

Support tube

Mounting flange

Location spigots

Measurement Aim.

To assess if the production method proposed would

produce detector assemblies accurately enough to allow for the

production of a 15 flange 1π ball arrangement.

12

Overlay of DetectorMeasurements

This images show the process of relating the measured points to the CAD geometry.

13

Results of DetectorMeasurements

Level adjustment required

Lateral adjustment required

Conclusion

Adjustment will be required for the first detectors

14

Vacuum deformation of Detector Measurements

Measured by CMM.FEA analysis.

Using DTIs. 15

Detector Adjustment

Adjustment for detector

Alignment gauge

16

Detector Adjustment

Detector support rods

1st Adjustment Plate

Guide rods (as attached to main flanges)

17

Detector Adjustment

Locking screws

Yaw adjusters

X and Y adjusters

2nd Adjustment Plate

18

Detector Adjustment

Locking screws

Detector support rods secured to this flange

Z, pitch and roll adjusters

3rd Adjustment Plate

19

Alignment Gauge

3 precision platesSpaced 1mm clear of detector

20

Detector Adjustment Progress

Drawings of detector adjustment system are being checked prior to quotation and manufacture.

Drawings of alignment gauge are inProgress.

Expect all drawings to be complete early December.

Plan to have a complete assembly mid to late January 2008.

21

Transportation frameprogress

Drawings of transportation frame to be completed by end of December

Plan to have a complete assembly mid to late February 2008.

22

Support Structureprogress

Drawings of support structure have been completed and issued to Legnaro for manufacture.

23

Liquid Nitrogensupport progress

Drawings of Liquid Nitrogen support structure have been completed and issued to Legnaro for manufacture.

24

Future plans

The UK is currently bidding to provide the mechanical design for installation of AGATA at both GANIL and GSI

Milestones:

Sept 2008 Agree design specification for the mechanical support for GANIL.

May 2009 Finish design of the mechanical support for GANIL. Begin procurement.

Oct 2009 Trial assembly of the mechanical support for GANIL.

Dec 2009 Installation of the structure in GANIL.

Jan 2010 Agree design specification for the mechanical support for GSI.

Nov 2010 Finish design of the mechanical support for GSI. Begin procurement.

Apr 2011 Trial assembly of the mechanical support for GSI.

Jun 2011 Installation of the structure in GSI 25

Acknowledgements

Thanks to everyone who was involved in the Mechanical Installation over the last period, a special thanks to:

Simone Coelli (INFN-MI)Denis Conventi (INFN-LNL)Claudio Fanin (INFN-PD)Andres Gadea (INFN)Ernest Grodner (LNL)Loris Ramina (INFN-PD)Massimo Rebeschini (INFN-PD)Javier Valiente (LNL)Ennio Viscione (INFN-MI)

Bart Bruyneel (Cologne Uni.)Juergen Eberth (Cologne Uni.)Herbert Hess (Cologne Uni.)Peter Reiter (Cologne Uni.)Andreas Wiens (Cologne Uni.)Heinz-Georg (CTT)Michel Ozille (GANIL)Michel Tripon (GANIL)Benuard Remy (GANIL)Tobias Engert (GSI)Rob Griffiths (STFC)Alan Austin (STFC)

26