PROGRESS REPORT
February 24 – March 23, 2001
Accomplishments / Status
Summary: Overall, 57% of the work from the Restart Review to delivery
has been completed. The
Mid-Fabrication Review was held on March 7th.
The main focus of this report period has been on the 3D design of the
Bulkhead Assembly and its associated components. All mechanisms except for one camera barrel are either in
drafting or fabrication. The
Pre-Slit and Post-Slit benches are in fabrication. Work has started on several
fixed assemblies.
Next
Milestone:
The next major project milestone is the completion of the 3D design of the
Passive Collimator Compensation Assembly. This
will complete the design of the cold structure.
Earned
Value:
| February | March | |
| BCWP | $1,543,495 | $1,694,322 |
| ACWP | $1,739,549 | $1,839,301 |
| SPI | 0.75 | 0.74 |
| CPI | 0.89 | 0.92 |
Project
Management:
(53% 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 support of the Bulkhead Assembly design effort and rotary
mechanism flexure testing using bearings impregnated with lubricant.
These tests were successful and the design approach is considered
verified.
Mechanical
Design, Fabrication, Assembly and Test: (49% overall)
The
major activity in this work package has been 3D design of the Bulkhead Assembly
and its interfacing components, the last camera barrel 3D design, bench
fabrication, and starting work on fixed assemblies. The next major item in design will be the Passive Collimator
Compensator Assembly.
Mechanisms:
(70% complete overall).
| MECHANISMS | Feb | Mar | 3D | 2D | Fab | Assy | Test | |
| Camera | 69% | 77% | ||||||
| Top Assembly | 97% | 99% | ||||||
| Short Red | 57% | 75% | 100% | 100% | 60% | |||
| Short Blue | 51% | 52% | 100% | 100% | 8% | |||
| Long Red | 72% | 79% | 100% | 78% | ||||
| Long Blue | 6% | 23% | 80% | |||||
| Hub | 88% | 90% | 100% | 100% | 83% | |||
| Focus | 24% | 24% | 100% | 3% | ||||
| Environmental Cover | 97% | 99% | 100% | 100% | 100% | 100% | x | |
| Acquisition Mirror | 58% | 68% | 100% | 100% | 90% | |||
| Slit/Decker | 66% | 77% | ||||||
| Housing | 80% | 100% | 100% | 63% | ||||
| Decker | 99% | 100% | 100% | 100% | ||||
| Slit | 65% | 100% | 100% | 78% | ||||
| Filter Wheel | 71% | 70% | 100% | 100% | 63% | |||
| Grating Turret | 42% | 51% | 100% | 50% | 10% | |||
| Prism Turret | 48% | 47% | 100% | 100% | 73% | |||
| Motor Drives | 90% | 90% | 100% | 100% | 100% | 71% |
Benches:
(59% complete overall).
| BENCHES | Feb | Mar | 3D | 2D | Fab | |
| The Post-Slit | 56% | 65% | 100% | 100% | 40%/60% | |
| LC Fold Housing | 32% | 61% | 100% | 100% | 15% | |
| Top Camera Cover | 55% | 100% | 100% | 30% | ||
| Bottom Camera Cover | 67% | 100% | 100% | 50% | ||
| OIWFS Bench | 67% | 67% | 100% | 100% | 100% | |
| OIWFS Field Lens Tube | 100% | 100% | 100% | 100% | 100% | |
| Collimator | 29% | |||||
| Housing | 41% | 100% | 100% | 10% | ||
| Passive Comp | 22% | 26% | 50% | |||
| Pre-Slit bench | 44% | 62% | ||||
| POM | 58% | 75% | 100% | 100% | 65% | |
| Offner | 35% | 53% | 100% | 100% | 100%/35% |
