PROGRESS REPORT
April 29 – June 2, 2000
PROGRESS REPORT
April 29 – June 2, 2000
Accomplishments
/ Status
Summary: Overall, 23% of the work from the Restart Review to delivery
has been completed. The primary focus of this reporting period has been 1) The
Pre-Fabrication Review, 2) the solid model design/analysis of the Post-Slit,
Pre-Slit, and OIWFS Optical Benches, 3) the risk reduction testing of the Linear
and Rotary drive prototypes, and 4) the design of camera barrels, Filter Wheel
mechanism, and fabrication of the Environmental Cover mechanism and motor drive
assembly.
Next
Milestone:
The next major project milestone is the release of the optical benches for
fabrication in August 2000.
Earned
Value:
BCWS $ TBP
SPI
1.70
BCWP $653,549
CPI
0.92
ACWP $711,048
Project
Management:
(30% completed) The Pre-Fabrication
review was held as scheduled on May 11-12.
The viewgraphs presented in this review can be seen on the GNIRS web
site. A summary task schedule is
attached to this report, which shows percent complete on all tasks in work.
The summary schedule can be viewed on the GNIRS web site at: http://www.noao.edu/ets/gnirs/.
Systems
Engineering:
(84%) The activities in work are 1) structural analysis, 2) linear prototype, 3)
rotary prototype, 4) bearing test fixture.
The
thermal analysis is complete. The
structural analysis is in process and will be complete by the end of June.
The
Linear Mechanism Prototype is ready for cold testing. The Rotary Mechanism Prototype has completed is in cold test.
The bearing test prototype is in 2D detail design.
Mechanical
Design and Fabrication: (9%) Activities include optical bench solid modeling, camera design,
filter wheel design, environmental cover fabrication, and motor drive assembly
fabrication.
The
3D solid model design of the Wavefront Sensor Bench, Post-Slit Optical bench,
the Pre-Slit Bench, the Collimator Mount and Cover Box are 100% complete for
analysis purposes. The next
task for these assemblies is to finish the detail 3D and 2D designs for
fabrication. This should be
completed by mid-August.
The
3D design of the Short Red and Short Blue Camera Barrels are complete.
The 2D drafting of these camera barrels is 100% and 16% complete,
respectively. Work has started on
the Long Red and Blue camera barrels and the 3D design of these components is
approximately 20% complete. Work
has started on the 3D design of the camera drive spindle hub.
The
3D solid model design of the Filter Wheel Assembly mechanism is 67% complete.
The
design of the Environmental Cover Assembly is complete, and has been released
for fabrication.
The
Acquisition Mirror mechanism solid model design is complete, and the 2D drafting
is 7% complete.
The Motor Drive Assembly design is complete, and has been released for fabrication.
Electronics
Design:
(10%) Activities in this work package include electrical and mechanical design
and construction of a simulator for use in software testing, dewar and mechanism
wiring design definition, and array interface details.
The
electrical design for the Mechanism Simulator is complete.
Mechanical design is in process. Actual
construction will start in June.
Work has
started on defining dewar wiring, and ALADDIN array interfacing details and on
the detailed Mechanism wiring.
Software
Development:
(26%) The Components Controller Software is 50% complete.
The Software plan is complete and was presented at the Pre-Fabrication
Review.
Procurement:
(24%) Major activities in this Work Package included optics work at RMI (50%
complete) and at II-VI (100% complete), and monitoring vendor fabrication.
The contract with II-VI is closed with all 3 mirrors accepted and delivered.
We
have received a filter from NDC in the UK.
The filter is in the optics shop ready for inspection, and will be done
in early June.
No
items.
Larry
Goble, Sr. Mechanical Engineer, has left the project and retired from NOAO.
Guang Zhou, a graduate EE student at the UA, started work on May 22 as intern assigned to Jerry Penegor.
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