about astro technology -...
TRANSCRIPT
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ABOUT ASTRO TECHNOLOGY
ADVANCED INSTRUMENTATION FOR:• Subsea fields• Pipelines and risers• Space structures• Rocket Motors
ENGINEERING CAPABILITIES INCLUDE:
• System integration• Real-time embedded systems• Experimental stress analysis
• Fiber-optic sensor technology• Conventional sensor
integration
• Environmentally hardened systems
• Software development
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INSTRUMENTATION OF NASA’S ROBONAUT HAND
a)b)
d)c)
f)e)
b)
b)
To DAQ System
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Space Shuttle Return‐to‐Flight
Micro‐WIS Temp/Photo Cell ‐ 34 ELMWIS
Micro‐WIS Photo Cell – 34 Micro‐WIS
Micro‐WIS Accelerometer – 14 WB Micro‐TAU
Micro‐WIS Still Camera – Prototype upgrade to flight
Micro‐WIS Relay Units – Use ELMWIS connected by wire
RF from Mid Body to Aft Flight Deck Laptop/Ground
Fiber Optic Strain Gauge on MLG Door Seal
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•Apply fiber‐optic sensor technology to solid rocket motors
•In‐situ sensors on new motors•Sensors bonded to the interior of existing motors
•Fiber Bragg‐gratings•Fabry Perot
•Measure mechanical and chemical properties during handling, storage, long‐term aging,motor firing, case burst and damage assessment•Provide tool for service life evaluation•Early detection of possible structural failure
Solid Rocket Motor Test
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FIBER-OPTIC SENSOR ROCKET MOTOR TESTFiber optic pressure gauge validation
0
200
400
600
800
1000
1200
1 2 3 4 5 6 7 8
time in seconds
pres
sure
in p
si
taberfiber-optic pressure gage
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FIBER-OPTIC SENSORS FOR CIVIL STRUCTURES
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FAILURES TO MONITOR AND PREDICT
• Detect early warning signs• Automate monitoring of critical systems• Give critical data to key decision makers
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DEVIL’S TOWER BASS LITE (OMAE 2012)
• Located in Atwater Valley Block 426• Utilizes 20.3-cm (8-in) diameter flowline• 90-km (56-mi) length• Ties to Devil’s Tower in Mississippi Canyon• Production ― Up to 130 million cubic feet per day• Water depth ― 2,050 m (6,750 feet)• Commenced operation in February 2008
MONITORING:• Pressure• Temperature• Hoop and Axial Strain
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PREVIOUS INSTRUMENTATION ON DEEPWATER RISERS
SPAR SEMI-SUBMERSIBLE
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TROIKA ― GULF OF MEXICO
ASTRO TECHNOLOGY pioneered the use of fiber-optic sensors on a subsea pipeline to monitor pressure, strain and vibration in external casing pipe bundle during fabrication.
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FIBER-OPTIC SENSORS FOR DEEPWATER DRILLINGOCEAN CLIPPER
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FIBER BRAGG GRATINGS
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RELATIONSHIP BETWEEN WAVELENGTH & STRAIN
WAVELENGTH (NM)
OPT
ICAL
PO
WER
1549.5 1550 1550.5
EXAMPLE BASE WAVELENGTH FOR A SINGLE FBG
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RELATIONSHIP BETWEEN WAVELENGTH & STRAIN — TENSION
REFLECTED SIGNAL FROM THE PREVIOUS FBG IN TENSION
1549.5 1550 1550.5
WAVELENGTH (NM)
OPT
ICAL
PO
WER
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RELATIONSHIP BETWEEN WAVELENGTH & STRAIN — COMPRESSION
REFLECTED SIGNAL FROM THE PREVIOUS FBG IN COMPRESSION
1549.5 1550 1550.5
OPT
ICAL
PO
WER
WAVELENGTH (NM)
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TENSION LEG PLATFORM SENSORS
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TENDON TENSION MONITORING SYSTEM
POLYURETHANE BODY
BAND CLAMPS
HANDLEEXITING CABLES
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TENDON BAND PREPARATION
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DIVER INSTALLATION
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HARDENED SENSOR STATIONSGuides with Zip Ties to Hold Band in Place
Rubber Tube (Bonded to Cable at Tube Clamp Area) for Cable Strain Relief Sensors Spot Welded to
Parallel Metal Strips
Tube Clamp to Stabilize Tube & Cable to Poly
Tangs to Hold Strips to Poly
v
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TEMPERATURE & STRAIN GAUGES
0 0.5 1 1.5 2 2.5 3 3.5 44
2
0
2
4
6
0 0.5 1 1.5 2 2.5 3 3.5 4
5
0
5
TEM
PER
ATU
RE
STR
AIN
(KIP
S)
TIME (days)
TIME (days)
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OBSERVING TIDE CYCLES
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0 5 10 15 20 25 30 35 40 45 50-12
-10
-8
-6
-4
-2
0
2
4
6
8x 10-3 Raw Signal
TIME (seconds)
3-7 second periods
OBSERVING WAVE ACTIONRAW SIGNAL
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10-2 10-1 100
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
x 10-6 Amplitude Spectrum
Frequency (Hz)
|Y(f)
|
vAMPLITUDE SPECTRUM
FREQUENCY (Hz)
50-100 seconds
3-6 seconds
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vBOAT DOCKING
TIME (minutes)
LOAD
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vWEST AFRICAN ENVIRONMENT:
TIME (minutes)
LOAD
SUDDEN AND POTENTIALLY VIOLENT SQUALLS
Storm Front Impact
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v
vv
SENSOR CALIBRATION WITH TIDE CYCLES
TIME (hours)
LOAD
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TRIDENT MONITORING SYSTEM
v
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ADVANCED DEEPWATER MONITORING SUMMARY
• Flow Lines (Temperature, Pressure, Hydrates)• Risers, Tendons (Strain, Fatigue, Vibration)• New Data Acquisition Overview
– Calibration on Post-Installed Systems– Key Software Architecture Elements
• Observing Unique and Interesting Events• Synthesizing Data into Actionable Information
– Delivered to Key Decision Makers
• Future Activities Include Automation of Load Balancing and Abnormal Event Detection
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CLEAR GULF JOINT INDUSTRY PROJECT (JIP)
• Create cutting-edge techniques for managing production• Develop environmental and safety systems for drilling and production• Respond to challenges faced when working in remote and harsh environments• 7 specific deliverables for Phase-I on post-installed monitoring systems
v
PROPOSED PARTNERS INCLUDE:
• Collaboration between oil and gas industry, NASA and Astro Technology