Re: [Paparazzi-devel] vibration filter

[Prof. Dr.-Ing. Heinrich Warmers]

Hi,
the problem is that the idle vibration often generate  resonaces of the aircraft structure.
One way to solve this problem is to use a accelerator sensor  with a very low bandwidth (<17Hz)
like the analogue R9500M . This sensor  has a range of +-1.5g  and can give a reference signal for the AHS.

Heinrich

Eduardo lavratti schrieb:

Hello friends, i finished 2 airframes this week.
One is a big 3m airplane and other is a 2.6m flywing.
This planes use gasoline engines.

In the flywing i using some vibration mount to help dump the vibration but its not absorbing all low frequency vibration when in idle speed.

I like know if any one tried some kind of filter to reduce the effects ofthis kind of vibration.
I see that some IMU have a MEDIAN_FILTER oprtion so i put this filter in drotek and tried it on my plane.

The result is very bad. It work better without filter.

So, anyone can help ?

kind regards.

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