🚀 go-pugleaf

Here's a post I made to sci.engr a few days ago.  They suggested I re-post it 
here...
>Howdy,
>   I'm a senior here at RIT and am planning to do my Senior Design Project
>on the damping of audible noise created by air flowing through a ventilation
>duct in a room.  My original idea was to use active noise control, but
>thought about it a bit and concluded it would be overkill.. creating
>a vent by using modal analysis (finding the natural frequency -> noise
>by vibration) or sampling the major frequencies emitted by the duct
>would be much simplier...
>
>So, as I know very little about noise, damping, etc, could someone
>steer me in the right direction towards reports, articles, books, etc..
>on a topic similar to what I'm looking for?
>
>Thanks
>Dan

   I've tought about it even more (since the noise really destroys concentration)
and if I redesign the vent the way I'm planning, it might kill the pressure
in the vent system.  While I know little about ventilation, doesn't there NEED 
to be some amount of "back-pressure"?  Otherwise, all the fresh air would enter
one room.  

Again, thanks.
-Dan

-- 
Daniel C. Richardson
Rochester Institute Of Technology     /    Mechanical Engineering Dept.
Before they were called Engineers, they were dubbed Artisans.  Before
one can be considered an Artisan, one must be able to be an Artist.