1 / 19

Schedule issues

Schedule issues. Justin Greenhalgh This presentation will be at http://www.eng-external.rl.ac.uk/cms-gen/Project_papers under EE356. Agenda outline. Part one - introductory comments (Justin) Part two – comments from Paul (crystals) Brian (supercrystals) Lucy (Dee lab)

gene
Download Presentation

Schedule issues

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Schedule issues Justin Greenhalgh This presentation will be at http://www.eng-external.rl.ac.uk/cms-gen/Project_papers under EE356

  2. Agenda outline • Part one - introductory comments (Justin) • Part two – comments from • Paul (crystals) • Brian (supercrystals) • Lucy (Dee lab) • Jordan (Electronics) • Ken (Commission, test, integration) • Part three – a schedule? (Justin) • Part four – other issues (Austin, Dave)

  3. (Part 1) • Attempt to reach a coherent picture • But things are changing fast…

  4. Key issues connected with crystals • Supercrystal production rate • Deliveries of parts (esp crystals - PAUL) • Rate of work in RC (BRIAN) • Speed to assemble a Dee: • Speed to assemble the SC onto a Dee (LUCY) • Speed to assemble the electronics onto a Dee (JORDAN) • Dee commissioning, test, integration (KEN)

  5. Not to forget… • Services • Integration activities (Dee fitting to HE, etc) • Etc etc

  6. Basis of estimates • John Connolly (with Brian and Tony) developed estimates for SCs • We have more experience now, but beware: • Based on barrel • Do not forget start-up times • Who prepares the estimates? • Justin (beware) • Whoever is going to do it (much safer)

  7. (Part 2) ECAL planning, main milestones, v33.1/ new profile for EE crystal production P Lecoq SC build estimates B Smith Dee mechanical assembly profiles L Linssen  Profile for EE prototype and final electronics/ Dee electronics integration J Nash Dee installation and commissioning in CMS K Bell

  8. (Part 3) • An attempt at a coherent schedule • Done last night, BEFORE I had seen most of what has just been said – but after discussion with Jordan and email from Lucy, and having seen Paul’s slides from Tuesday. • What’s involved • Assumptions – what would happen if… • “Scenario 4” schedule • excludes comm, test, integration • Caveats

  9. What’s involved? • SC - See Brian’s talk • Dee pre-assembly (NOT dependent on SC) • Fit Dees 1+ 2 together • Fit cooling pipes to BP • Fit Env shield to Dee • Test OES + BP cooling systems (Arbitrary split…)

  10. Dee lab • SC, FOM, HV cabling • Fitting the inner and front moderators (the front moderator may be quite an awkward thing to assemble around the umbilicals) • Fitting the piping for the power cooling (which will probably go in after the front and inner moderators) • fitting any required thermal shield • fitting the low voltage cabling layer • fit the support rails for combs and mothercards • fitting the mothercards which includes wiring them to the SC with any knitting required • fitting the combs that support the cooling bars, and the cooling bars • prefit the cooled rear moderator • testing the power + rear moderator cooling circuits • remove the cooled rear moderator Sequence??

  11. Integration centre • Integration lab tasks: • fitting the VFE, FE, and regulator cards • fitting the fibres • system tests that need, or may need, access to the electronics • Integration lab mechanical tasks • refit the cooled rear moderator • retest piping (hope nothing leaks!!!) • retest system (cooling + electrical)

  12. Crystal numbers

  13. Assumptions – crystal delivery • EE crystals in production quantities in Q4 of 2005 AT THE RCs • Some deliveries sooner than that to allow • Refinement of production processes • Staff training • Staff continuity (we don’t lose Brian!) • NO STOCK at RCs • Uniform delivery over the quarter – ideally, front-loaded.

  14. Assumptions – SC production rate • Slow for the first year, but that gives time to fully develop all processes, buy tooling, etc. • Transfer of expertise to second RC before production quantities arrive • Ramp abruptly from 2/week to 5/week at both RC. • No point in going faster because of crystal production rate limits. • Partial SCs keep up

  15. Crystal delivery + SC production Jump

  16. Times – Dee lab + integration centre • Learning process • 4 months in the Dee lab post-learning • 4/day = 20/week, 8 weeks for 160 SC • Dee has 138 full and 18 partial = 156 SC/Dee • ==>2 months to assemble SC • 2 months for mechanical bits of mechatronics • 2 months Integration centre (B 867) • 1 month for electronic bits (assumes wires etc pre-cut using a mockup) • 2- 4 weeks retest + cooled rear mod Lucy Justin Jordan

  17. Scenario 4 100 100 300 450 3200 per quarter………..

  18. BEWARE • How to build up trained staff quickly enough in the RC? • There is little room for slack or contingency • EQUALS RISK (time and money) • This is broad brush planning - the devil may be in the detail as regards cost or time • So detailed planning is required by the folk who will do it. • Delivery at RC, not from Bogoroditsk • No stock at RC (unrealistic) • Costs have been ignored

  19. (Part 4) Cabling/service installation deadlines A Ball E0' and Dee beam tests D Cockerill Conclusions and action plan All

More Related