Abstract
© The Author(s), under exclusive licence to Shiraz University 2025.This study investigates a specific quadrotor unmanned aerial vehicle (UAV) with the aim of supporting rescue missions in humid, vapor-laden environments following heavy rainfall and flooding. The vibrational excitation on rotor blades caused by water droplets in such conditions is first analyzed through theoretical derivation and simulation. Subsequently, dynamic models and motion differential equations for the vibration isolation system are developed for both hovering and cruising states. Based on calculations, the isolator parameters are determined to be k = 5574 N/m and c = 5.8 N·s/m. Finally, finite element simulations and experimental tests are conducted to compare the vibration responses of the original system and the system with vibration isolation. The results indicate that the designed UAV vibration isolation system, when operating in a humid steam environment, reduces the resonance frequency by 33%, the acceleration resonance amplitude by 60%, and the lift amplitude by 50% compared to the original system. These improvements contribute to enhanced post-disaster rescue efficiency.
NETL
NSTL
Springer Nature