Analysis of a Pre-Stressed Quadcopter Propeller Using Finite element Approach
Keywords:Quadcopter, propeller, vibration frequency, FEA and optimization.
Quadcopter, a mechatronic device is now widely used due to its simple
structure and vertical take-off and landing capability. It consists of four
propellers which can lift and propelled the Quadcopter in 3-D space. The
difference in angular speeds of propellers works as a steering system and
responsible for attitude and altitude motion. Quadcopter self weight and pay
load is carried by the propellers itself, and a bad design of the propeller
may lead to crack. Quadcopter propellers are also subjected to thrust force
and vibration during the flight. The main objective of this study is to find
out the natural failure frequency of propeller. Two types of propellers have
been designed in Creo 2.0 and analyzed in Ansys 16.2 for their vibration
frequencies. Both the designs are analyzed with or without the thrust force
under the vibration frequency. First six vibration modes have been calculated
for both the propeller designs with Carbon Fiber Reinforced Polymer (CFRP)
material. The obtained simulation results have been compared and analyzed
to sustain the failure frequency.
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