Maximum acceptable vibration limit

[PRATHEEP]

Vibration levels below 30m/s/s are normally acceptable. Levels above 30m/s/s may have problems and levels above 60m/s/s nearly always have problems with position or altitude hold. Maximum acceptable values appear to be below 30m/s.

may i know why the maximum vibration limit is set to 30m/s/s.

[amilcarlucas]

That information is wrong the values are more conservative:

@amilcarlucas

According to common ArduPilot forum knowledge, and quoting @xfacta:

• Vibrations over 30 are very bad
• Vibrations over 20 are causing issues even if you don’t know it yet
• Vibrations over 15 are in a grey area - it could go either way - check clipping, it must be zero
• Vibrations below 10 are good

Vibrations cause the maths in the EKF filter to diverge, and that can lead to crashes.