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Technology Forums: FTA, Satellite, Cable, Home Media, Hardware & Computers
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04-12-07, 01:27 PM
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#1 (permalink) |
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Super Moderator
Join Date: Jul 2007
Location: Kent
Posts: 5,112
Thanks: 28
Thanked 485 Times in 467 Posts
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Bending moments-Antenna Wind loading
Just found some very useful information on the
Kathrein website, regarding the wind loading caused by an antenna, and the resultant bending moment on the pole. Basically multiply the given Windloading (N) by the height of the pole above its fixing point. Eg for Kathrein CAS75 windloading =480. say pole height = 1m The bending moment = 480 Nm, The windloading figure given by Kathrein for its products is for the equivalent of 129kM/h wind speed (force 12) This value must not exeed the maximum bending moment that the pole can take, Link to page:- http://www.kathrein.de/en/sat/tinfos/download/TA-60.pdf Robbo 
__________________
كيبل اعضاء البلهاء TM6800,TM1000D.Triax TD110 on STABHH-90 motor.Orbital 1m on Moteck motor+2 x minidishes DigitAlb movie package. Electronics Engineer and satellite installer.  
Last edited by Robbo; 04-12-07 at 01:34 PM. |
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| The Following User Says Thank You to Robbo For This Useful Post: | cauliflower69 (18-03-08) |
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09-02-08, 01:05 PM
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#2 (permalink) |
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Junior Member
Join Date: Feb 2008
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Re: Bending moments
Am somewhat familiar with "bending moment" when a 2&1/2 ton pickup truck I was moving came unhooked from the tractor and decided to follow gravity down the slope! The 10' dish was mounted high off the ground and cleared the front fenders but flexed as cab passed under. immovable object (30inch diameter tree) finally stopped wayward pickup.
Tom |
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