An investigation on the structural vibrations of multi-rotor passenger drones

In order to solve the structural damage problem of first generation large multi-rotor manned drones, present work has designed study vibration problems drones. On a small drone, laser meter verified reliability acceleration sensor measurement and found that circular shape carbon fiber arms have strong damping abilities, with strongest in Z-axis direction. To improve design second elliptical were employed instead arms. Experiments showed main vibrations drone’s arm are low-frequency below 200Hz, producing mainly torsional bending modes, significantly reduce This provides experimental data support for drones further presents an improvement strategy suppressing