Author Topic: Tower envy (Read 2595 times)

SmoggyTurnip · « **on:** May 04, 2006, 04:31:07 PM »

I have my alternator mostly finished now,

So I am now researching blade design and tower

construction. In my web searching I came across

an unusual tower design and I thought I would

share it with you as I have never seen anything

like it - maybe you didn't either - have a look:

http://www.northeastwindenergy.com/index.html

.

Titantornado · « **Reply #1 on:** May 04, 2006, 11:30:29 AM »

Wow! Interesting tilt tower. If for nothing else, it would make a great trebuchet!

SparWeb · « **Reply #2 on:** May 04, 2006, 12:47:15 PM »

Also looks a bit like....

:^)

Reno · « **Reply #3 on:** May 04, 2006, 02:58:25 PM »

With proper weighting it would make an awesome tilt back furling system just just be standing below on a windy day.

electrondady1 · « **Reply #4 on:** May 04, 2006, 03:33:17 PM »

hey,i commented the first time,! lol.

i couldn't remember the name of that french siege engine. but titantornado got it.

i assune you could fine tune the counter weight. i think it's a great idea.

SmoggyTurnip · « **Reply #5 on:** May 04, 2006, 03:44:17 PM »

I wounder what the tower is made of.

Looks like the bottom of the pole is at least 12 inches.

Steel, fiberglass, other?

electrondady1 · « **Reply #6 on:** May 04, 2006, 03:45:56 PM »

i see he's using a hydraulic ram to move it up and down. slick.

electrondady1 · « **Reply #7 on:** May 04, 2006, 03:47:09 PM »

i was thinking it was one of those big street light poles

stevesteve · « **Reply #8 on:** May 04, 2006, 04:59:18 PM »

The towers are pretty cool but have you looked at the hubs and NW3000 construction page?

They are pretty cool too!

pepa · « **Reply #9 on:** May 04, 2006, 09:17:33 PM »

check out my files under 47 going up for a easier verson pepa

ElSenator · « **Reply #10 on:** May 05, 2006, 01:46:07 AM »

Trebuchet?

http://images.google.com/imgres?imgurl=http://webpages.charter.net/tmoon/trebuchet/trebuchet%252001.
jpg&imgrefurl=http://webpages.charter.net/tmoon/trebuchet/trebuchet.html&h=1032&w=612&am
p;sz=78&tbnid=Xy2dLattjDnmVM:&tbnh=150&tbnw=88&hl=en&start=20&prev=/images%3
Fq%3Dtrebuchet%26svnum%3D10%26hl%3Den%26lr%3D%26safe%3Doff%26client%3Dfirefox-a%26rls%3Dorg.mozilla:
en-US:official_s%26sa%3DG

SmoggyTurnip · « **Reply #11 on:** May 05, 2006, 07:17:24 AM »

Very nice work pepa.

It looks like your tower is

free standing. Is that correct?

It think the tower on the link is more than

90 feet high - with a 5 meter gennie on top

I don't think fiberglass pole would be strong

enough. Does anybody know or care to guess?

pepa · « **Reply #12 on:** May 05, 2006, 07:39:40 AM »

these poles are used for power lines and i have seen them with two large transormers mounted on one pole with lots of connectors and wire. i understand that the weight of these oil transformers is very heavy, and the stress of the wind on all those wires has to be very high. i have a 42 foot tilt in my files that i pull up with a temperary gen pole and it bends very little in the process pepa

SmoggyTurnip · « **Reply #13 on:** May 05, 2006, 07:49:00 AM »

Very interesting pepa.

What size gennie is on top of

the 42 footer and is it free standing?

Does it flex much in the wind?

What is the higest wind it has seen so far?

.

BigBreaker · « **Reply #14 on:** May 05, 2006, 11:43:01 AM »

Rigid structures are great at finding their weakest points when loaded. This tower can sway some which really spreads out the forces and averages them over a short period of time.

pepa · « **Reply #15 on:** May 05, 2006, 12:54:00 PM »

the 42 foot pole is a tilt up with guey wires,my first. the 47 foot pole is buried five foot in concrete, 53 foot total w/ track and wench setup to raise genns, real fast and easy, even for an old man like me. at the present time i am flying two amtrack thirty volt motor jens but have had a ten foot danb copy up and a couple of different gear up units with different pm motors. i am trying to develope some fiberglass blades and keep changing them out to improve or discard. i have seen the poles sway in 60x wind gust but they come through fine. pepa

pepa · « **Reply #16 on:** May 05, 2006, 01:22:18 PM »

i should have mentioned earler that the top 20 foot of the pole has a 20' section of 2" steel pipe down the center and through the top of another pole witch is the base of th tower. the 2" pipe extends above the pole for the yaw bearing. over half of the pole is double with pipe reinforcing. i hope it holds up but the price was wright. pepa

Nil · « **Reply #17 on:** May 05, 2006, 02:54:41 PM »

I thought of a trebuchet as soon as I saw that. In fact I was planing on using mine for a easy tower for testing small mills.

So long as you dont release it too quickly, and your mill end up catching too much air.

and biting the dust

ElSenator · « **Reply #18 on:** May 05, 2006, 06:50:18 PM »

It's a brilliant idea! the more the wind blows, the more it furls, at least on 1 axis.

electrondady1 · « **Reply #19 on:** May 07, 2006, 07:25:25 AM »

smogy, thanks for posting the link. in fact, thanks for posting it twice. i keep going back for another look. i realy like this counter weight method. so much so, i think i will attempt it on a smaller scale for my tower. the only negative thing i can see so far is in this fellows system is the the shaft of the hydraulic ran would be exposed to the elements most of the time.perhaps it could just be coated with grease. for a smaller version it might be ok to simply use a "comealong " type whinch.

News:

Author Topic: Tower envy (Read 2595 times)