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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Commercial Wind Blade Testing at UMaineJohn Arimond
UMaine Composites Center
Maine Ocean and Wind Industry Initiative webinarJanuary 14, 2015
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Static Certification Testing of Wind BladesCourtesy of Steve Nolet, TPI Composites (2011)
› Static testing to simulate maximum operational loading is a critical element of design certification and is required by ALL certifying agencies (GL, IEC, DNV, etc.)
› Testing has formerly been accomplished with makeshift operations:› Deadweight loading› Use of overhead cranes
› New facilities are coming online domestically that utilize fully computer operated dedicated loading systems.
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Large Blade Test Centers in North America
National Renewable Energy LaboratoryBoulder, CO
Laboratory Location Blade Length
National Renewable Energy Lab Boulder, CO 50 m
Wind TechnologyTest Center Charlestown, MA 90 m
UMaine Composites Center Orono, ME 73 m
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
UMaine Composites Center, Orono, Maine
Lightweight Composite Towers(floating offshore wind R&D)
Wind-wavefacility
56m Gamesa blade (arriving 27 Aug 2014)
OffshoreWind Lab
(added 2011)
Main Lab
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
UMaine Composites Center, Orono, Maine
Reaction wall
OWL door
73 m
21 m
Offshore Wind Laboratory
4.6 m
6.1 m
winch frame
130 kNhydraulicwinch
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Anatomy of a Wind Turbine BladeCourtesy of Steve Nolet, TPI Composites
Sandwich Shell
TE Shear Web
LE Shear Web
Trailing Edge
Sandwich Shell
Sandwich Shell
Sandwich Shell
Lower (HP) Spar Cap
Upper (LP) Spar Cap
Leading Edge
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Determination of Design-Driving Ultimate Load on Wind BladeTypical calculated loads, factored as per IEC WT‐01
Flap
wiseBe
nding Mom
ent a
t Blade Roo
t
Pitch system failure while generating in strong wind
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Wind Blade on Reaction Wall
Pitch bearing
4 of 24 anchors in place
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Risk of buckling?
Wind Blade Prepared for Flapwise Proof Test
Load transfer saddle
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
High contrast patternfor 3‐D optical metrology
Region of Interest Painted for Optical Metrology
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
~25°CCD camera pairs:• (2) 5.1M Jai• (1) 2.0M Baumer• (1) 1.4M Pulnix• (1) 1.3M Vosskuhler
GOM Aramis™ and Pontos™ systems
3-D Optical MetrologyUMaine Composites Center
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
IEC 61400-23 Proof Testing at UMaine Composites Center
1‐minute video of blade testing with 3‐D optical metrology, posted athttp://youtu.be/QqYQBbsprGs
Hyperlink also available at www.composites.umaine.edu
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Load cells for control of winches
Steel wheels>260 kN capacity
Hydraulic winches130 kN capacity
Blade Rotation System – Actuator for Rolling Adaptor
Cylindricity specified on adaptor OD
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Blade Rotation System – Rolling Suspension for Blade Tip
triangular lug
snatch block
7/8” wire rope sling
corner protector
rectangular lug
gantry crane
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Flapwise Testing of 56m BladeCourtesy of Gamesa Corporation
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John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
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UMaine Students at Work
Rigging wind blade for lifting and rotation maneuvers
Attaching and wiring strain gages and instrumentation
Bolting blade to adaptor and adaptor to wall
Assembling load transfer saddles and mounting on blade
Rigging hydraulic winches to load transfer saddles
Observing operation of MTS AeroPro™ control and data acquisition
John Arimond, Business Development ManagerAdvanced Structures and Composites [email protected](207) 581-2336
Thank you!
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