PROGRESS REPORT
January 23 – February 23, 2001
Accomplishments / Status
Summary: Overall, 52% of the work from the Restart Review to delivery has been completed. All mechanisms have been designed (except for one camera barrel) and are either in drafting or fabrication. All benches are in fabrication. All optics from RMI have been received and the rest are either on order or out for bid. Work has started on the fixed assemblies, the main focus being on the Bulkhead Assembly and its associated components. The first round of flexure testing for rotating mechanisms has been successfully completed and will be repeated using lubricated bearings this month. Results will be presented at the upcoming Mid-Fabrication Review. The loss of a design drafting technician has caused some rescheduling of design and fabrication activities, but no slip in the start of integration is evident as yet.
Next
Milestone:
The next major project milestones are the Mid-Fabrication Review and Quarterly
Review, both on March 7th.
Earned
Value:
BCWS $ 2,049,349
SPI
0.75
BCWP $ 1,543,495
CPI
0.89
ACWP $ 1,739,549
Project
Management:
(51% complete)
The
project plan may be viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/
under Management, Planning. Work is being done to prepare for integration later
this year. The August 2002
scheduled delivery date of the GNIRS instrument has not changed.
Systems
Engineering:
(100% of planned work)
The
main focus has been flexure testing to verify the rotary mechanism designs.
These tests were successful and will be repeated later this month using
bearings impregnated with lubricant.
Mechanical
Design, Fabrication, Assembly and Test: (49% overall)
The
major activity in this work package has been completion of all mechanism
designs, bench fabrication, and starting work on fixed assemblies.
The next major item in design will be the Bulkhead Assembly and its
associated component hardware. The
Passive Compensator Assembly will also receive high priority.
Mechanisms:
(63% complete).
Mechanism
overall completion summary:
Camera
69%
Focus
24%
Environmental Cover
97%
Acquisition Mirror
58%
Slit Decker
66%
Filter Wheel
71%
Grating Turret
42%
Prism Turret
48%
Motor Drives
90%
Detailed status:
Camera top Assembly:
97%
Short Red Camera:
57% complete, fabrication 75% complete
Short Blue camera:
51% complete, ready for fabrication
Long Red Camera:
72% complete, 2D drafting 24% complete
Long Blue Camera:
6% complete, 3D design 30% complete
Camera drive spindle Hub: 88%
complete, fabrication 79% complete
Focus mechanism:
Ready for 2D design.
Environmental cover assembly:
In test.
Acquisition mirror mechanism:
Fabrication 75% complete.
Slit-Decker mechanism:
Fabrication 65% complete.
Filter wheel mechanism:
Fabrication 65% complete.
Grating turret mechanism:
2D detailing 30% complete, fabrication is 10% complete.
Prism turret mechanism:
Fabrication 70% complete.
Motor drive assemblies:
Assembly 75% complete.
Benches: (52% complete overall).
The Post-Slit bench is 56% complete overall and is in fabrication.
The
OIWFS bench is complete.
The
Collimator Assembly is 24% complete.
The Housing is 32% complete, ready to begin
fabrication.
The Passive Compensator Assembly is 22% complete and is in 3D design.
The Pre-Slit bench consists of the POM and Offner assembly, and is 44% complete overall.
The POM is 58% complete with fabrication at 75%.
The Offner is 35% complete with fabrication at 75% complete.
Fixed
Assemblies:
(14% complete overall).
Entrance
Window Assembly is 96% complete and ready for Assembly/Test.
Detector
Mount Assembly is 48% complete and ready for 2D design detail.
LN2
Pre-Cool Assembly is 4% complete with 3D design 20% complete.
Optical
Bench Gimbal Mount Assembly is 53% complete and ready for fabrication.
Bulkhead
Assembly is 11% complete with 3D design 25% complete.
Front
Dewar Shell is 26% complete with 3D design 76% complete.
Rear
Dewar Shell is 6% complete with 3D design 25% complete.
The
Vertical Installation Frame Assembly is 5% complete with 3D design 50% complete.
The
Horizontal Frame Assembly is 1% complete with 3D design 25% complete.
The
Dewar Mount Truss Assembly is 12% complete with 3D design 90% complete.
The
Thermal Enclosure Mount Assembly is 2% complete with 3D design 10% complete.
The
Handling Fixtures are 30% complete and ready for fabrication.
Electronics:
(63% complete overall)
The
Component Controller Thermal Enclosure is 51% complete:
VME Crate is 92% is complete and being used for
Software test.
Motor Drive/Cryohead Cooler Cage Crate is 62%
complete.
Internal Cabling and Connectors is 12% complete.
Ancillary Cage Crate is 26% complete.
IFA Electronics Box interface schematics are 100%
complete.
External
Cabling (Dewar to TE) is 23% complete.
The
Dewar Warm-up Controller is 37% complete.
The
Dewar Cold Station PCB’s are 60% complete.
The
Dewar Internal Connectors and Cabling schematics are complete.
All
electronics parts are either in house or on order. The design work is essentially complete and the main activity
is fabrication.
Software
Development:
(49% complete overall).
The
Components Controller Software is 67% complete.
The
Lab Support Software is 6% complete.
The
Epics Software is 60% complete.
The
next software activity is to test motor drive and mechanism status and position
sensing code using the actual electronics VME crate. Epics software is far ahead of schedule.
Procurement:
(54%
complete overall).
Optics
procurement is 71% complete overall.
The RMI optics order is complete and all lenses received.
All Pupil Viewer lenses have been received.
The Janos four BaF2 lenses are 8% complete.
Grating replicas have been ordered.
Prism bids have been received and are being reviewed.
Bids for the Wollaston Prisms are in process.
The Major activities in this Work Package included inspecting optics at RMI,
obtaining quotes for the prisms and monitoring vendor fabrication.
Quotes for a clean room tent have also been received and are being
reviewed.
Problems / Solutions.
The OIWFS component late delivery will impact the project. We have no information on when these parts will be provided.
The shortage of two Instrument makers has resulted in using outside vendors for more work than originally planned. This will result in higher capital expenditures overall.
Key Personnel
Rick Robles, Tech Associate Designer, has left the project.
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