Hi ArduPilot Community,
I am experiencing excessive Z-axis vibrations (spiking over 30) during cruise flight at speeds above 5 m/s, which causes oscillations and instability. Despite implementing proper vibration dampening and using high-quality isolation for the flight controller, the issue remains unresolved.
Setup Details:
- Flight Controller: Orange Cube Plus
- Firmware: Latest stable ArduPilot
- Flight Controller Mounting: On high-quality vibration dampers
- Propellers and Motors: Balanced and matched to specs
Problems:
- Z-axis vibrations exceed acceptable levels during cruise but are stable during hover and slow flight.
- Oscillations (up to 20° in roll) occur when cruising, with visible deviation between desired and actual roll/pitch.
- Aerodynamic turbulence appears to amplify vibrations at higher speeds.
Troubleshooting Steps Taken:
- Propellers and Motors: Balanced and inspected for resonance or misalignment.
- Dampening: Installed high-quality vibration dampers under the flight controller.
Observations from Logs:
- Z-axis vibrations spike during high-speed cruise, while X and Y vibrations remain stable.
- VIBE.Z exceeds 50 during the oscillations, and ATT logs show significant attitude deviations.
Questions for the Community:
- Could the issue be related to aerodynamic turbulence around the payload or frame design during cruise?
- Are there specific ArduPilot parameters or advanced filters that can address Z-axis vibrations effectively in this scenario?
- Has anyone resolved similar issues with high Z-axis vibrations despite having proper dampening?
I would appreciate any insights or guidance from the community to help solve this issue. Let me know if you need log files or additional details.
Thank you for your support!
@xfacta @dkemxr @amilcarlucas