ligo-g060224-00-m may 17, 2006 installation (ins) requirements and design breakout presentation nsf...
TRANSCRIPT
LIGO-G060224-00-M
May 17, 2006
Installation (INS)
Requirements and Design Breakout PresentationNSF Review of Advanced LIGO Project
Dennis Coyne, Caltech
2LIGO-G060224-00-M
May 17, 2006
Installation (INS) WBS Functions
INS is the project phase between subsystem assembly & project completion
Includes: Removal
» Removal of existing detector equipment» Disposition or storage of equipment» Particulate clean up of vacuum chambers
Installation» Installation of Vacuum Equipment» Installation of all Detector Equipment
– External to vacuum system– Internal to vacuum system
Testing» In-situ Unit/subsystem Testing» Integrated System-Level Testing
Does not include: Installation Planning (FMP scope) Installation Staging (FMP scope) Assembly (subsystem scope) Unit Acceptance testing (subsystem scope) Installation Fixtures (subsystem & FMP scope) Commissioning (beyond project scope) Data & Computing System (DCS) installation & test
3LIGO-G060224-00-M
May 17, 2006
Basic Strategy
Start with Livingston (L1) to minimize impact of initial problem discovery» Unless world-wide gravitational network status sets other priorities
LIGO manages all INS activities» No subcontracted effort» Skilled trade labor all directed by LIGO staff
Prior to INS start:» All production/fabrication and assembly are completed (reduce labor
distraction and delays from late deliveries)» Integrated Testing & Training at LASTI Lab (@MIT) & 40m Lab (@Caltech)
– Pre-Stabilized Laser + Input Optics + Data Acquisition/Networking (PSL+IO+DAQ)
– Seismic Isolation System + Suspension Assemblies + partial Interferometer Sensing & Control + Data Acquisition/Networking(SEI+SUS+~ISC+~DAQ)
4LIGO-G060224-00-M
May 17, 2006
INS Procedure Development & Trainingat the MIT LASTI Facility
Large Full-Scale Prototype Assemblies are Installed & Tested in the LASTI Facility Chambers
Mode Cleaner, Triple Suspension Installation in a HAM Chamber at LASTI
Quadruple Suspension Installation on Temporary Optics Table at LASTI
Internal Seismic Isolation (ISI) Assembly at LASTI (to be installed in BSC Chamber in 2006)
5LIGO-G060224-00-M
May 17, 2006
Basic Strategy (continued)
After INS Start:» Simultaneous installation at both observatories (optimum staff utilization)» Time phased installation of subsystems (leveling load on experts)
– Sufficient to transfer/re-direct expertise to support 2nd observatory installation– Insufficient time to rework – rely upon subsystem/subassembly testing and
LASTI system testing
» Significant participation & support from observatory staff (training)» Installation & Integrated Testing are parallel activities
– emphasis on early discovery of problems at integrated systems level– emphasis on installation of in-vacuum components ASAP
6LIGO-G060224-00-M
May 17, 2006
Installation Readiness
Installation Readiness Review to be held prior to switching off an Operating Observatory
Litmus Test for Readiness:» Agreement between LSC & LIGO Lab that switching off a working
LIGO interferometer will not cripple the world-wide network of gravitational wave observatories
» All Installation Procedures Approved– Note that many procedures developed for Initial LIGO are common to AdL
» Critical Installation Activities & Tooling have been Tested (LASTI testbed)
» Sufficient assembly, check-out and delivery of subsystem components completed, so that installation will not be supply chain limited
7LIGO-G060224-00-M
May 17, 2006
Seismic Isolation, HEPI SubsystemInstallation at LIGO Livingston Observatory
Helical Spring(1 of 2)
Vertical Actuator
HorizontalActuator Crossbeam
Pier
Coarse & Fine (PEPI) Actuation Systems
HEPI
8LIGO-G060224-00-M
May 17, 2006
INS Organization & Team Composition
Organization:» Centralized, flat organization» Program Manager directs INS effort» Separate on-site management for Installation and Integrated System Test
Teams:» Subsystem focused» Installation teams comprised of the subsystem staff (designed & fabricated
the hardware)» Plus observatory staff (assembled & tested the hardware)» Plus hired temporary (contract) staff (particularly skilled trade labor and
technicians) as needed
9LIGO-G060224-00-M
May 17, 2006
INS Basic Tasks/Sequencefor a single Interferometer
DE-INTEGRATION
DISPOSAL/STORAGE
VACUUMMODIFICATIONS
PRE-STABILIZED LASER (PSL) ENCLOSURE
CONTROL & DATA SYSTEMS (CDS)
INFRASTRUCTURE
SEISMIC ISOLATIONHAM CHAMBER
CARTRIDGE INSTALLSUS + SEI + AOSBSC CHAMBER
SUSPENSIONFIBER WELDING/ASSY.
BSC CHAMBER
INPUT & OUTPUT OPTICS
CONTROLS
HYDRAULIC EXTERNALPRE-ISOLATOR (HEPI)
INSTALL
PRE-STABILIZED LASER (PSL)
INPUT OPTICS (IO)SUSPENSIONS (SUS)
AUX. OPTICS SYS. (AOS)HAM CHAMBER INSTALLATION
INTERFEROMETERSENSING & CONTROLS
SEISMIC TESTISI + HEPI
PRESTABILIZED LASER (PSL) + INPUT OPTICS (IO)
INTEGRATED TEST
NEAR-MICHELSON INTEGRATED SYSTEM TEST
FABRY-PEROT ARM CAVITYINTEGRATED SYSTEM TEST
FULL INTERFEROMETERLOCK ACQUISITION
SYSTEM TEST
10LIGO-G060224-00-M
May 17, 2006
LHOLVEA
STAGING/STORING AREAS
PSL OUTER & INNER ENCLOSURES
LARGE ITEM ACCESS ROUTE
ELECTRONICS RACK ENCLOSURE FOR THE FOLDED INTERFEROMETER
ISC TABLE ASSY AREA
SEI & SUS CLEAN ROOM CARTRIDGE ASSY AREA
BSC & HAM SEI ASSY. IN CRATES SUS ASSY. IN
CRATES
HEPI PUMP STATION AREA
11LIGO-G060224-00-M
May 17, 2006
End Station
Revise to show cartridge assembly clean room
BSC CHAMBER RELOCATED FROM MID-
STATION
STAGING AREAS
12LIGO-G060224-00-M
May 17, 2006
BSC “Cartridge” Installation on Test Stand
overhead crane
Clean room
Clean cover frame
SEI BSC
SUS quad
(without structure shown)
In general the entire BSC optics table payload and all counterbalance mass is installed as part of the “cartridge”
Quadruple Suspension Installation on Temporary Optics Table at LASTI
13LIGO-G060224-00-M
May 17, 2006
BSC “Cartridge” Insertion into BSC Chamber
14LIGO-G060224-00-M
May 17, 2006
Installation/Integration Challenges
Subsystem deliveries may be late» Readiness Review to decide whether to start or delay
Safety» Tight procedures & training (as was done in Initial LIGO)» Light Source Physically “locked” within PSL Enclosure during
most of the Installation effort» Strict adherence to Safety Plan
Timely Transfer of “Lessons Learned” from 1st Interferometer to 2nd & 3rd
» Staggered Starts (9 months)» Common management & key staff
Quality Assurance» In-situ Subsystem Testing for acceptance is mandatory
15LIGO-G060224-00-M
May 17, 2006
Approach to Establishing the Basis Of Estimate
Costs» Bottom-up:
– Labor mix and hours based on team composition per task times expected task duration and times needed duty cycle for labor skills
» Top-Down:– Compare to Initial LIGO Travel Cost during Installation &
Integrated Test– Compare to Initial LIGO Labor Costs during Installation &
Integrated Test– Justify differences
Schedule» Engineering judgment/estimate of major phase durations
based on Initial LIGO experience» Compare to Initial LIGO duration
16LIGO-G060224-00-M
May 17, 2006
Initial LIGO Time LineInstallation, Integration/Testing, Commissioning & Running
NowInauguration
1999 2000 2001 2002 20033 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
E2Engineering
E3 E5 E9 E10E7 E8 E11
First Lock Full Lock all IFO
10-17 10-18 10-20 10-21
2004 20051 2 3 4 1 2 3 4 1 2 3 4
2006
First Science Data
S1 S4Science
S2 RunsS3 S5
10-224K strain noise at 150 Hz [Hz-1/2]4x10-23
AdL Project (MREFC) Scope
2.7 years duration
Started install 7/98