Reliability Analysis of Multi-rotor UAV Based on Fault Tree and Monte Carlo Simulation

Aiming at the reliability problem of multi-rotor unmanned aerial vehicle (UAV), the fault tree model of the system with “flight mission failure” as the top event is established by analyzing each subsystem, and then the Monte Carlo method is programmed and simulated in MATLAB software. Finally, the importance and the weakness of the components of the multi-rotor UAV are given. The results show that this method in reliability analysis of multi-rotor UAV has the characteristics of fast calculation, quantifiable parts importance and the characteristics of weak parts in the system, which can provide important reference for the design of multi-rotor unmanned aerial vehicle (UAV) system.