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Balancing Wind Turbine Blades | 14 comments (14 topical, editorial)

Re: Balancing Wind Turbine Blades (3.00 / 0) (#3)
by etownlax on Wed Nov 7th, 2007 at 01:33:22 PM MST
(User Info)

I'm not sure if this is true but... I thought of this and it makes sense.

Total weight of a blade isn't the critical part. Its where the most mass is on that blade. So 2 blades can weigh the same but the tip be heaver on one than the other(then the root is lighter than the other). This would make it possible for 2 blades to weigh the same but yet be different. What I think should be done rather is to weigh using 2 scales, 1 on each end. This would eliminate that and you can tell the relitive weight of each end.

Also.. just putting them on the hub and then balancing them will help you even them out. Adding weight or taking it away weight.

2 grams isn't much. I doubt it will make a big differenc. But then again I could be wrong.

-Randy

Re: Balancing Wind Turbine Blades (3.00 / 0) (#4)
by waynep712 on Wed Nov 7th, 2007 at 02:37:52 PM MST
(User Info)

look up how to balance engine connecting rods... balance shops use a single scale with a swinging pivot for one end and a swinging pivot for the other... this devices goes through the holes in each end of the rods so it comes to rest at the tops of the bored holes.. each end is measured and marked.. once the set is weighed the heaviest is trimmed to match the lightest... there is more to it on an engine but that is not needed here...

the idea is each blade needs to be measured at the exact same point...and the blade as level as possable..

hope this helps....
wayne
[ Parent ]

Balancing Wind Turbine Blades | 14 comments (14 topical, 0 editorial)

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