MOWII blade testing webinar 14 Jan 2015

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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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.

2


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

3


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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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

5


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

6


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

7


Wind Blade on Reaction Wall

Pitch bearing

4 of 24 anchors in place

8


Risk of buckling?

Wind Blade Prepared for Flapwise Proof Test

Load transfer saddle

9


High contrast patternfor 3‐D optical metrology

Region of Interest Painted for Optical Metrology

10


~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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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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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

13


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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Flapwise Testing of 56m BladeCourtesy of Gamesa Corporation

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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


Thank you!

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MOWII blade testing webinar 14 Jan 2015

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Transcript of MOWII blade testing webinar 14 Jan 2015