Greetings to all.
On various copters, mainly 7", I observe this vibration at 19 Hz. Everything that could be fixed mechanically has been fixed. The vibration is present in the hover, without stick movements. It does not have any negative impact on control or flight. If anyone has figured out where it comes from, I would be grateful for a tip.
LogFile
Before doing further analysis disable these:
Raw IMU in the Log Bitmask.
INS_LOG_BAT_MASK,0
INS_LOG_NAT_OPT,0
Leaving only INS_RAW_LOG_OPT,9
And then make another data collection flight.
But in any case I wouldn’t worry about that 19Hz bump.
Its probably control oscillation, you will be able to tell more by looking at a PID FFT
2 Likes
I lowered the D a little, tried FLT* 15, but it didn’t change anything.
It doesn’t interfere with flying, but its very presence is annoying ))
I think there is some clever combination of parameters to fix this.
