Re: [Paparazzi-devel] vibration and imu problem solved.

[Eduardo lavratti]

Are you using GAS/GLOW engine ?
In my big flywing using a G32 electric motor and 16"(well balanced) prop i never had vibration problem.

Next week i will assembly a big plane (3m spam).
This plane use a 60cc gas engine. I think i will do something to dump vibrations.

My other project started today is a 2.6m GASSER flywing.

> Date: Thu, 23 May 2013 15:59:21 +0300
> From: address@hidden
> To: address@hidden
> Subject: [Paparazzi-devel] vibration and imu problem solved.
>
> Ok it looks like my vibration problem is solved.
> After downloading every paper i could find on vibration dampening here
> is what i did in case someone
> finds this info usefull.
> i first made a sandwich with the imu between two MonnGel pads (Moongel
> pads stick together very well) and then i wrapped the whole thing in
> latex foam and installed it in a plastic case.
> I used just enough latex foam in order to keep the whole assembly steady
> when enclosed in the plastic case.
> The imu also has a lead plate about 20g attached to it for increased
> inertia.
> Then i searched for the quietest spot in the fuselage and guess where i
> found it...
> Right behind the firewall....
> Also don't forget that the imu wiring must be relaxed by creating a
> small (3-5cm) loop with the wires and attaching this loop loosely to the
> fuselage (at one point only) in a way that the wiring portion from the
> loop to the plastic case containing the imu does not touch the fuselage
> at any point.
> Chris
>
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