Damping vibration absorber analysis and improved design of a certain UAV

Abstract

Abstract:

Considering the control requirements of fuselage vibration for a certain type of oil-electric hybrid unmanned aerial

vehicle (UAV) during cruise phase, the damping vibration absorbers with 4-point and 6-point layout at the connection between the engine and the fuselage are designed in this paper based on the passive vibration reduction principle. After installing the two types of vibration absorbers, the flight state of the UAV are simulated on the ground, The

experimental test result is compared with original vibration absorber. The results indicate that both types of vibration absorbers can effectively control the fuselage vibration, and the damping vibration absorbers with the 6-point

layout having a better effect of vibration reduction, which ensuring each indicator of the fuselage vibration meet the

requirements. At the same time, the weight of the UAV has been reduced by reducing the weight of the vibration

absorbers.

Key words:

unmanned aerial vehicle (UAV), vibration, passive vibration reduction, damping vibration absorber

CLC Number:

V279.3

LIU Yanhong, LI Haofeng.

Damping vibration absorber analysis and improved design of a certain UAV

[J]. Journal of Civil Aviation University of China, 2024, 42(6): 91-96.

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