DeSSC Update Alvin Upgrade Project · Better visibility and overlapping views X Three 7” forward...
Transcript of DeSSC Update Alvin Upgrade Project · Better visibility and overlapping views X Three 7” forward...
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DeSSC Jun 12 124
DeSSC UpdateAlvin Upgrade Project
Susan HumphrisPrincipal Investigator
Kurt UetzProject Manager
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DeSSC Update
• A significantly enhanced submersible for the scientific community built in two stages:
• Stage 1 4,500 m Alvin Upgrade: 2012• Stage 2 6,500 m Alvin Upgrade: future scheduling
Project Objectives
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DeSSC Jun 12
Vehicle CharacteristicsDeSSC Update
Project ObjectiveStage 1 Vehicle
Stage 2 Vehicle
Remarks
6,500 meter depth capability X Stage 1 designs and fabricates select 6,500 meter components (sphere, penetrators, syntactic foam)
Larger personnel sphere, improved interior ergonomics
X 18% increase in interior volume; redesign of observer and pilot seating
Better visibility and overlapping views
X Three 7” forward viewports with overlapping fields of view; two 5” side port
Improved interior electronics X Fiber optic network, touch screen controls, and upgraded observer monitors
Increased science payload X Double the vehicle payload to 400 pounds as well as expand the manipulator work area
Improved lighting and imaging X HD video, publication quality still imaging, and increased lighting output (LED)
Improved data collection, logging, and science interface
X A fiber optic network and upgrades to the data recording and logging systems
Increased bottom time; mid‐water capability
X Requires increased battery capacity
Increased thruster horsepower X Requires increased battery capacityIncreased hydraulic plant capacity X Requires increased battery capacityAutomatic station keeping X Stage 1 includes auto‐heading control
Vehicle Certification: NAVSEA X Potential double classification with ABS in Stage 2
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UpdatesDeSSC Update
Personnel:Don Peters is the project Chief Engineer and managing the the engineering effort
Descoping:• The project is suspending ABS classification of the vehicle
• Reduces risk in the project related to double classification• The vehicle will continue the Navy certification process
• The project will review systems for witnessing by ABS to maximize the potential for future double classification
• The personnel sphere and LARS will also continue the ABS classification process
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DeSSC Update
NAVSEA Certification:• Weekly program and technical meetings to review certification
progress and expedite resolution of issues• June 8th Hydrostatic Test Readiness Review
• NSF reviewed and authorized pressure testing of the sphere
Personnel Sphere Hydrostatic Test:Planned start: June 20th
Delivery to WHOI: July 6th
Updates
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Personnel Sphere UpdateDeSSC Update
Ready for Hydrostatic Test
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Hydrostatic Test FacilityDeSSC Update
10 ft diameter
Chamber
12,000 psi max pressure
End cap
Northrop Grumman Oceanic Test Facility
Annapolis, MD
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DeSSC Jun 12
Hydrostatic TestDeSSC Update
0
1,354
2,708
4,063
5,417
6,771
8,125
0
2,000
4,000
6,000
8,000
10,000
12,000
0 10 20 30 40 50 60 70 80 90 100
Dep
th (m
sw)
Pres
sure
(psi
g)
Dive Duration, minutes
Dive Profile - Test 3: 1.24 x MOPPressure (Depth) vs. Dive Time
MOP Test 3 1.24 x MOP
10 hour test to 6,500 meters
10 hour test to 6,800 meters
Final test to 8,125 meters
Final Dive Profile
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Blue area: current 60 ft2
Gray area: upgrade 114 ft2
New Capability - Manipulator ReachDeSSC Update
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New Capability - Imaging
Pri Pri
Sci #2Sci #1
S SituationalPri PrimarySci Science Cameras
• File-based image storage to reusable HDD• Long�term data storage• Situational Cameras: HD Video, 2 forward, internal pan and tilt• Primary Cameras: HD Video, 10x zoom (Mini-Zeus)• Science Cam #1: HD Video• Science Cam #2: HD Video + Still Imaging
DeSSC Update
S
SS
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DeSSC Jun 12 134
Vehicle LayoutDeSSC Update
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Work in ProgressDeSSC Update
May 2012
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DeSSC UpdateWork in Progress
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Status of Major ComponentsDeSSC Update
• Penetrators:• Fiber optic units delivered and in testing• Electrical units fabricated, preparing for testing
• Foam:• All foam purchased, tested, and accepted• Shaping is in process with several pieces delivered
• Frame:• Front section removed• Fabrication of new section started
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DeSSC Jun 12 138
R/V Atlantis StatusDeSSC Update
Launch and Recovery System Schedule
•Increase lift capability to 50,000 pounds
•A-Frame upgrade complete March 2011
•Deliver modified swinging beam to WHOI July 2012
• Shipyard maintenance period Aug – Sept 2012
• Reinstall swinging beam onto A-frame• Complete hangar modifications
•Complete LARS integration October 2012• ABS classify and NAVSEA certify
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DeSSC Jun 12
Project TimelineDeSSC Update
139
Toda
y
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Frame Modifications:•Proceeding with fabrication in parallel with NAVSEA reviews
Vehicle NAVSEA Certification:•Completing assembly and testing concurrent with certifying the vehicle for manned operations
R/V Atlantis LARS•Completion of swinging beam modifications in July•Classify through ABS and certify with NAVSEA in time to support November dock trials
Budget:• Any schedule delay will jeopardize completion within budget
Challenges AheadDeSSC Update
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Back to Alvin OperationsDeSSC Update