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Started By
Message
re: Giant lowboy trailers = wind turbine nacelles
Posted on 3/31/16 at 1:55 pm to Bias
Posted on 3/31/16 at 1:55 pm to Bias
I understand the purpose of the "low boy" aspect. I don't get the wheel set up. They run these segmented sections of the trailer with the load being distributed in an unconventional way. I've seen these trailers used for quite a few things. It's usually for very heavy loads. It's a way to distribute the weight I'm sure. I just don't clearly see the way it's done off the bat.
3
Posted on 3/31/16 at 1:56 pm to AlxTgr
These blades are made at NASA Michoud in New Orleans. It's 255 feet long.
This post was edited on 3/31/16 at 1:57 pm
Posted on 3/31/16 at 1:58 pm to bodean45
quote:Hayell Yeah!
Hell yea!! I've been wondering what those things were for a long time now...thanks!
Mission Accomplished Alx!
Posted on 3/31/16 at 1:59 pm to KG6
quote:I had it in my mind like a windshield wiper, but that does not appear to be the case.
I understand the purpose of the "low boy" aspect. I don't get the wheel set up. They run these segmented sections of the trailer with the load being distributed in an unconventional way.
Posted on 3/31/16 at 2:06 pm to AlxTgr
quote:
I understand the purpose of the "low boy" aspect. I don't get the wheel set up. They run these segmented sections of the trailer with the load being distributed in an unconventional way.
I am not hip on the setup of trailer, but I can tell you that the nacelle is now shipped without the generator, as they are too heavy to be shipped via truck.
Basically on one end you have the main shaft, and components, and on the other side you have no weight outside of the side of the nacelle.
Nacelles weigh 140k lbs, generally with an 70/30 weight split before the generator is added.
Nacelle + Generator when lifted weigh 160k lbs.
Posted on 3/31/16 at 2:10 pm to meeple
quote:
These blades are made at NASA Michoud in New Orleans. It's 255 feet long.
Yes, Blade Dynamics does occupy some space at Michoud. I do not know of any 77m blades. Our largest (on-shore) blades currently are 56m and 60m.
These might be used offshore, but those are completely different animals.
Posted on 3/31/16 at 2:13 pm to Bias
quote:
Designed that way for height clearance, makes it easier to haul under overpasses and low lying overhead power lines
That's a tertiary benefit.
Posted on 3/31/16 at 2:14 pm to BigBuckTurd
quote:
two specially made snovels.
SNOVEL?
Posted on 3/31/16 at 2:19 pm to KG6
quote:
They run these segmented sections of the trailer with the load being distributed in an unconventional way.
This!!
It's about weight distribution. Laws are in place to make sure there is only so much weight per axle. It's about maintaining the roads. Concrete/asphalt can only support so much weight per square inch. The longer the trailer, and the more points of contact/tires, the more evenly distributed is the weight.
This post was edited on 3/31/16 at 2:20 pm
Posted on 3/31/16 at 2:23 pm to KG6
Consider the trucks rear axles and the trailers front axles to be a single support point
The actual trailer is a beam that runs between the main support point (between those two sets of axles) to the center support point between the trailers two rear sets of axles
The actual trailer is a beam that runs between the main support point (between those two sets of axles) to the center support point between the trailers two rear sets of axles
Posted on 3/31/16 at 2:28 pm to Croacka
Here's a better photo
Posted on 3/31/16 at 2:31 pm to meeple
quote:
These blades are made at NASA Michoud in New Orleans. It's 255 feet long.
Yep, see them pulling out all the time. I work across the street. fricks up my commute when they shut down the road so them big sumbitches can make the turn out from the facility onto the road.
Posted on 3/31/16 at 2:34 pm to Croacka
See that picture makes sense. It's hard to make that out in the original though. Doesn't seem to be the same, but may just be the angle.
Posted on 3/31/16 at 2:35 pm to AlxTgr
quote:
had it in my mind like a windshield wiper, but that does not appear to be the case.
That's actually EXACTLY the premise. Just like wipers they're designed to spread the weight of the load out so pressure is applied evenly across the road.
Posted on 3/31/16 at 2:59 pm to KG6
It is just the angle of your original picture.
Posted on 3/31/16 at 3:00 pm to KG6
There are different configurations.
Posted on 3/31/16 at 3:31 pm to AlxTgr
This is fascinating. Something I never knew existed, but such an interesting issue/concept.
Posted on 3/31/16 at 3:34 pm to SM6
I see these things go down the interstate all the time and always wondered what they are, but never bothered to look it up (wasn't really sure what to type into google anyway).
Posted on 3/31/16 at 3:37 pm to BearsFan
quote:I just keep trying shite until I see what I am looking for.
wasn't really sure what to type into google anyway).
Posted on 3/31/16 at 3:59 pm to KG6
quote:
I have never gotten to really take a look at one of those types of trailers. I'd like to see where the forces are transferred to understand what the hell is going on and why they are beneficial
I have hauled heavy haul loads before my current job. There are multiple and I mean like hundreds of configurations all with weight distribution in mind
By law each axle can only have so much weight to support because of equipment and road travel limitations. The steer axle is considered a set, the drive axles are the next set and so on. Each set has a weight designation dependant on how many axles are in the set.
I'll try and get some other pics of different configurations if you would like
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