Abstract :
This study aimed to design an Agricultural UAV (Unmanned Aerial Vehicle)
aircraft that acts as an agricultural tool to spray in rice fields using 6 motors DC
as the driving force. The important thing to do in the initial design of this
Agricultural Drone was to design and analysis the strength of the design structure
to ensure the safety of the structure as well as the durability and strength of the
structure when it flies with a load.
Design and modelling method were implemented in designing the
Agricultural Drone Platform of this Agricultural Drone using CATIA VR21
Software and the calculation of structural strength using ANSYS R19.2 Software.
For loading conditions using UAV Australia C.A.S.A. Subpart-C Structure
UA25.337 regulation with a load factor value of 3.8 and -1,5. Loading was
carried out on the 6 motors when the Drone was in a state of floating in the air
with a total load maximum (MTOW) of 24 Kg.
The Agricultural Drone Sprayer UAV Hexacopter platform has a total
weight of 24000 grams, the configuration of the structure uses X Conviguration
with a length of each arm of 650 mm. Components of the Hexacopter UAV
Agricultural Drone Sprayer Platform consist of T-motor U10 100KV, Propeller T
motor CF29*9.5, Lipo 10S -37V-35C 16000mAh, ESC T-Motor Flame 80A,
Brushlass water pump sprayer WA3510 48V, Nozzle dan hose pipe, Flight
Controller Mini CC3D, and Radio Control Receiver. From the results of the
analysis of the stress value based on the Margin of Safety with a load factor of 3.8
the highest occurred in the Landing Gear 1 part of 20,722 (safe) and the largest
load factor of -1.5 on Bolt Part 4 with a Margin of Safety value of 118,554 while
for composite materials declared safe based on the Failure Criteria from the
Inverse Reverse Factor data with a load factor of 3.8 the largest value occurred
in the Carbon Tube 2 layer 1 angle 0° angle of 0,44223 and the load factor -1.5
occurred in the Carbon Tube 2 layer 2 part angle 45 ° is 0,16101.